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Conserved domains on  [gi|1907163470|ref|XP_036021024|]
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adhesion G-protein coupled receptor D1 isoform X1 [Mus musculus]

Protein Classification

Laminin_G_3 and GPS domain-containing protein( domain architecture ID 12137270)

protein containing domains Laminin_G_3, GPS, and 7tm_GPCRs

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
7tm_GPCRs super family cl28897
seven-transmembrane G protein-coupled receptor superfamily; This hierarchical evolutionary ...
532-791 1.40e-150

seven-transmembrane G protein-coupled receptor superfamily; This hierarchical evolutionary model represents the seven-transmembrane (7TM) receptors, often referred to as G protein-coupled receptors (GPCRs), which transmit physiological signals from the outside of the cell to the inside via G proteins. GPCRs constitute the largest known superfamily of transmembrane receptors across the three kingdoms of life that respond to a wide variety of extracellular stimuli including peptides, lipids, neurotransmitters, amino acids, hormones, and sensory stimuli such as light, smell and taste. All GPCRs share a common structural architecture comprising of seven-transmembrane (TM) alpha-helices interconnected by three extracellular and three intracellular loops. A general feature of GPCR signaling is agonist-induced conformational changes in the receptors, leading to activation of the heterotrimeric G proteins, which consist of the guanine nucleotide-binding G-alpha subunit and the dimeric G-beta-gamma subunits. The activated G proteins then bind to and activate numerous downstream effector proteins, which generate second messengers that mediate a broad range of cellular and physiological processes. However, some 7TM receptors, such as the type 1 microbial rhodopsins, do not activate G proteins. Based on sequence similarity, GPCRs can be divided into six major classes: class A (the rhodopsin-like family), class B (the Methuselah-like, adhesion and secretin-like receptor family), class C (the metabotropic glutamate receptor family), class D (the fungal mating pheromone receptors), class E (the cAMP receptor family), and class F (the frizzled/smoothened receptor family). Nearly 800 human GPCR genes have been identified and are involved essentially in all major physiological processes. Approximately 40% of clinically marketed drugs mediate their effects through modulation of GPCR function for the treatment of a variety of human diseases including bacterial infections.


The actual alignment was detected with superfamily member cd15256:

Pssm-ID: 475119 [Multi-domain]  Cd Length: 260  Bit Score: 442.06  E-value: 1.40e-150
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 532 QVALSSISYVGCSLSVLCLAATLVTFAVLSSVSTIRNQRYHIHANLSFAVLVAQVLLLISFSMEPGTVPCQVLAVLLHYF 611
Cdd:cd15256     1 QVALSSITYVGCSLSIFCLAITLVTFAVLSSVSTIRNQRYHIHANLSFAVLVAQILLLISFRFEPGTLPCKIMAILLHFF 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 612 FLTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICIISISSSMDSYGTSDSCWLALGSGAIWAFVGPALL 691
Cdd:cd15256    81 FLSAFAWMLVEGLHLYSMVIKVFGSEESKHFYYYGIGWGSPLLICIISLTSALDSYGESDNCWLSLENGAIWAFVAPALF 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 692 VIVVNIVILVAVTRVISHISTDSYKIHGDPSAFKLTAKAVAVLLPILGTSWVFGVLAVSDRALVFQYMFAILNSLQGLFI 771
Cdd:cd15256   161 VIVVNIGILIAVTRVISRISADNYKVHGDANAFKLTAKAVAVLLPILGSSWVFGVLAVNTHALVFQYMFAIFNSLQGFFI 240
                         250       260
                  ....*....|....*....|
gi 1907163470 772 FLFHCLLNSEVRAAFKHKTK 791
Cdd:cd15256   241 FLFHCLLNSEVRAAFKHKTK 260
GPS smart00303
G-protein-coupled receptor proteolytic site domain; Present in latrophilin/CL-1, sea urchin ...
477-524 7.37e-13

G-protein-coupled receptor proteolytic site domain; Present in latrophilin/CL-1, sea urchin REJ and polycystin.


:

Pssm-ID: 197639  Cd Length: 49  Bit Score: 63.56  E-value: 7.37e-13
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1907163470  477 LYCAFlnFSSGEGVWSSQGCALTEGNLTYSVCHCTHLTNFAILMQVVP 524
Cdd:smart00303   3 PICVF--WDESSGEWSTRGCELLETNGTHTTCSCNHLTTFAVLMDVPP 48
Laminin_G_3 pfam13385
Concanavalin A-like lectin/glucanases superfamily; This domain belongs to the Concanavalin ...
139-213 3.92e-12

Concanavalin A-like lectin/glucanases superfamily; This domain belongs to the Concanavalin A-like lectin/glucanases superfamily.


:

Pssm-ID: 463865 [Multi-domain]  Cd Length: 151  Bit Score: 64.71  E-value: 3.92e-12
                          10        20        30        40        50        60        70
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 1907163470 139 WTHVLFTWkSKEGLKVYVNGTL--STSDPSGKVSHTYGdphvNLVIGSEQDQTKRYeNGAFDEFIIWERALTPDEIK 213
Cdd:pfam13385  81 WTHVAVTY-DGGTLRLYVNGVLvgSSTLTGGPPPGTGG----PLYIGRSPGGDDYF-NGLIDEVRIYDRALSAAEIA 151
 
Name Accession Description Interval E-value
7tmB2_GPR133 cd15256
orphan adhesion receptor GPR133, member of the class B2 family of seven-transmembrane G ...
532-791 1.40e-150

orphan adhesion receptor GPR133, member of the class B2 family of seven-transmembrane G protein-coupled receptors; GPR133 is an orphan receptor that belongs to the group V adhesion-GPCRs together with GPR144. The function of GPR144 has not yet been characterized, whereas GPR133 is highly expressed in the pituitary gland and is coupled to the Gs protein, leading to activation of adenylyl cyclase pathway. Moreover, genetic variations in the GPR133 have been reported to be associated with adult height and heart rate. The adhesion receptors are characterized by the presence of large N-terminal extracellular domains containing multiple adhesion motifs, which play critical roles in ligand recognition as well as cell-cell adhesion and cell-matrix interactions, linked by a stalk region to a class B seven-transmembrane domain. In addition, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR-autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions. However, several adhesion GPCRs, including GPR 111, GPR115, and CELSR1, are predicted to be non-cleavable at the GAIN domain because of the lack of a consensus catalytic triad sequence (His-Leu-Ser/Thr) within their GPS.


Pssm-ID: 320384 [Multi-domain]  Cd Length: 260  Bit Score: 442.06  E-value: 1.40e-150
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 532 QVALSSISYVGCSLSVLCLAATLVTFAVLSSVSTIRNQRYHIHANLSFAVLVAQVLLLISFSMEPGTVPCQVLAVLLHYF 611
Cdd:cd15256     1 QVALSSITYVGCSLSIFCLAITLVTFAVLSSVSTIRNQRYHIHANLSFAVLVAQILLLISFRFEPGTLPCKIMAILLHFF 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 612 FLTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICIISISSSMDSYGTSDSCWLALGSGAIWAFVGPALL 691
Cdd:cd15256    81 FLSAFAWMLVEGLHLYSMVIKVFGSEESKHFYYYGIGWGSPLLICIISLTSALDSYGESDNCWLSLENGAIWAFVAPALF 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 692 VIVVNIVILVAVTRVISHISTDSYKIHGDPSAFKLTAKAVAVLLPILGTSWVFGVLAVSDRALVFQYMFAILNSLQGLFI 771
Cdd:cd15256   161 VIVVNIGILIAVTRVISRISADNYKVHGDANAFKLTAKAVAVLLPILGSSWVFGVLAVNTHALVFQYMFAIFNSLQGFFI 240
                         250       260
                  ....*....|....*....|
gi 1907163470 772 FLFHCLLNSEVRAAFKHKTK 791
Cdd:cd15256   241 FLFHCLLNSEVRAAFKHKTK 260
7tm_2 pfam00002
7 transmembrane receptor (Secretin family); This family is known as Family B, the ...
535-771 7.66e-54

7 transmembrane receptor (Secretin family); This family is known as Family B, the secretin-receptor family or family 2 of the G-protein-coupled receptors (GCPRs). They have been described in many animal species, but not in plants, fungi or prokaryotes. Three distinct sub-families are recognized. Subfamily B1 contains classical hormone receptors, such as receptors for secretin and glucagon, that are all involved in cAMP-mediated signalling pathways. Subfamily B2 contains receptors with long extracellular N-termini, such as the leukocyte cell-surface antigen CD97; calcium-independent receptors for latrotoxin, and brain-specific angiogenesis inhibitors amongst others. Subfamily B3 includes Methuselah and other Drosophila proteins. Other than the typical seven-transmembrane region, characteriztic structural features include an amino-terminal extracellular domain involved in ligand binding, and an intracellular loop (IC3) required for specific G-protein coupling.


Pssm-ID: 459625 [Multi-domain]  Cd Length: 248  Bit Score: 187.10  E-value: 7.66e-54
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 535 LSSISYVGCSLSVLCLaatLVTFAVLSSVSTIRNQRYHIHANLSFAVLVAQVLLLI----SFSMEPG----TVPCQVLAV 606
Cdd:pfam00002   4 LKVIYTVGYSLSLVAL---LLAIAIFLLFRKLHCTRNYIHLNLFASFILRALLFLVgdavLFNKQDLdhcsWVGCKVVAV 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 607 LLHYFFLTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICIISISSSMDSYGTSDSCWLALGSGAIWAFV 686
Cdd:pfam00002  81 FLHYFFLANFFWMLVEGLYLYTLLVEVFFSERKYFWWYLLIGWGVPALVVGIWAGVDPKGYGEDDGCWLSNENGLWWIIR 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 687 GPALLVIVVNIVILVAVTRVISHISTDSYKIHGDPSAFKLTAKAVAVLLPILGTSWVFGVLAVSDR---ALVFQYMFAIL 763
Cdd:pfam00002 161 GPILLIILVNFIIFINIVRILVQKLRETNMGKSDLKQYRRLAKSTLLLLPLLGITWVFGLFAFNPEntlRVVFLYLFLIL 240

                  ....*...
gi 1907163470 764 NSLQGLFI 771
Cdd:pfam00002 241 NSFQGFFV 248
GPS smart00303
G-protein-coupled receptor proteolytic site domain; Present in latrophilin/CL-1, sea urchin ...
477-524 7.37e-13

G-protein-coupled receptor proteolytic site domain; Present in latrophilin/CL-1, sea urchin REJ and polycystin.


Pssm-ID: 197639  Cd Length: 49  Bit Score: 63.56  E-value: 7.37e-13
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1907163470  477 LYCAFlnFSSGEGVWSSQGCALTEGNLTYSVCHCTHLTNFAILMQVVP 524
Cdd:smart00303   3 PICVF--WDESSGEWSTRGCELLETNGTHTTCSCNHLTTFAVLMDVPP 48
Laminin_G_3 pfam13385
Concanavalin A-like lectin/glucanases superfamily; This domain belongs to the Concanavalin ...
139-213 3.92e-12

Concanavalin A-like lectin/glucanases superfamily; This domain belongs to the Concanavalin A-like lectin/glucanases superfamily.


Pssm-ID: 463865 [Multi-domain]  Cd Length: 151  Bit Score: 64.71  E-value: 3.92e-12
                          10        20        30        40        50        60        70
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 1907163470 139 WTHVLFTWkSKEGLKVYVNGTL--STSDPSGKVSHTYGdphvNLVIGSEQDQTKRYeNGAFDEFIIWERALTPDEIK 213
Cdd:pfam13385  81 WTHVAVTY-DGGTLRLYVNGVLvgSSTLTGGPPPGTGG----PLYIGRSPGGDDYF-NGLIDEVRIYDRALSAAEIA 151
GPS pfam01825
GPCR proteolysis site, GPS, motif; The GPS motif is found in GPCRs, and is the site for ...
479-519 6.68e-12

GPCR proteolysis site, GPS, motif; The GPS motif is found in GPCRs, and is the site for auto-proteolysis, so is thus named, GPS. The GPS motif is a conserved sequence of ~40 amino acids containing canonical cysteine and tryptophan residues, and is the most highly conserved part of the domain. In most, if not all, cell-adhesion GPCRs these undergo autoproteolysis in the GPS between a conserved aliphatic residue (usually a leucine) and a threonine, serine, or cysteine residue. In higher eukaryotes this motif is found embedded in the C-terminal beta-stranded part of a GAIN domain - GPCR-Autoproteolysis INducing (GAIN). The GAIN-GPS domain adopts a fold in which the GPS motif, at the C-terminus, forms five beta-strands that are tightly integrated into the overall GAIN domain. The GPS motif, evolutionarily conserved from tetrahymena to mammals, is the only extracellular domain shared by all human cell-adhesion GPCRs and PKD proteins, and is the locus of multiple human disease mutations. The GAIN-GPS domain is both necessary and sufficient functionally for autoproteolysis, suggesting an autoproteolytic mechanism whereby the overall GAIN domain fine-tunes the chemical environment in the GPS to catalyze peptide bond hydrolysis. In the cell-adhesion GPCRs and PKD proteins, the GPS motif is always located at the end of their long N-terminal extracellular regions, immediately before the first transmembrane helix of the respective protein.


Pssm-ID: 460350  Cd Length: 44  Bit Score: 60.78  E-value: 6.68e-12
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|..
gi 1907163470 479 CAFLNFS-SGEGVWSSQGCALTEGNLTYSVCHCTHLTNFAIL 519
Cdd:pfam01825   3 CVFWDFTnSTTGRWSTEGCTTVSLNDTHTVCSCNHLTSFAVL 44
PTX cd00152
Pentraxins are plasma proteins characterized by their pentameric discoid assembly and their ...
129-216 2.53e-08

Pentraxins are plasma proteins characterized by their pentameric discoid assembly and their Ca2+ dependent ligand binding, such as Serum amyloid P component (SAP) and C-reactive Protein (CRP), which are cytokine-inducible acute-phase proteins implicated in innate immunity. CRP binds to ligands containing phosphocholine, SAP binds to amyloid fibrils, DNA, chromatin, fibronectin, C4-binding proteins and glycosaminoglycans. "Long" pentraxins have N-terminal extensions to the common pentraxin domain; one group, the neuronal pentraxins, may be involved in synapse formation and remodeling, and they may also be able to form heteromultimers.


Pssm-ID: 238086  Cd Length: 201  Bit Score: 54.97  E-value: 2.53e-08
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 129 KATFNPPG--PYWTHVLFTWKSKEGL-KVYVNGTLSTSDpSGKVSHTYGdPHVNLVIGSEQDQTkryeNGAFDE------ 199
Cdd:cd00152    80 EVTFKVPEsdGAWHHICVTWESTSGIaELWVNGKLSVRK-SLKKGYTVG-PGGSIILGQEQDSY----GGGFDAtqsfvg 153
                          90       100
                  ....*....|....*....|.
gi 1907163470 200 ----FIIWERALTPDEIKMYF 216
Cdd:cd00152   154 eisdVNMWDSVLSPEEIKNVY 174
PTX smart00159
Pentraxin / C-reactive protein / pentaxin family; This family form a doscoid pentameric ...
139-219 1.54e-07

Pentraxin / C-reactive protein / pentaxin family; This family form a doscoid pentameric structure. Human serum amyloid P demonstrates calcium-mediated ligand-binding.


Pssm-ID: 128463  Cd Length: 206  Bit Score: 52.65  E-value: 1.54e-07
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470  139 WTHVLFTWKSKEGL-KVYVNGTLSTSDpSGKVSHTYGdPHVNLVIGSEQDQTkryeNGAFD----------EFIIWERAL 207
Cdd:smart00159  92 WHHICTTWESSSGIaELWVDGKPGVRK-GLAKGYTVK-PGGSIILGQEQDSY----GGGFDatqsfvgeigDLNMWDSVL 165
                           90
                   ....*....|..
gi 1907163470  208 TPDEIKMYFTAA 219
Cdd:smart00159 166 SPEEIKSVYKGS 177
 
Name Accession Description Interval E-value
7tmB2_GPR133 cd15256
orphan adhesion receptor GPR133, member of the class B2 family of seven-transmembrane G ...
532-791 1.40e-150

orphan adhesion receptor GPR133, member of the class B2 family of seven-transmembrane G protein-coupled receptors; GPR133 is an orphan receptor that belongs to the group V adhesion-GPCRs together with GPR144. The function of GPR144 has not yet been characterized, whereas GPR133 is highly expressed in the pituitary gland and is coupled to the Gs protein, leading to activation of adenylyl cyclase pathway. Moreover, genetic variations in the GPR133 have been reported to be associated with adult height and heart rate. The adhesion receptors are characterized by the presence of large N-terminal extracellular domains containing multiple adhesion motifs, which play critical roles in ligand recognition as well as cell-cell adhesion and cell-matrix interactions, linked by a stalk region to a class B seven-transmembrane domain. In addition, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR-autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions. However, several adhesion GPCRs, including GPR 111, GPR115, and CELSR1, are predicted to be non-cleavable at the GAIN domain because of the lack of a consensus catalytic triad sequence (His-Leu-Ser/Thr) within their GPS.


Pssm-ID: 320384 [Multi-domain]  Cd Length: 260  Bit Score: 442.06  E-value: 1.40e-150
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 532 QVALSSISYVGCSLSVLCLAATLVTFAVLSSVSTIRNQRYHIHANLSFAVLVAQVLLLISFSMEPGTVPCQVLAVLLHYF 611
Cdd:cd15256     1 QVALSSITYVGCSLSIFCLAITLVTFAVLSSVSTIRNQRYHIHANLSFAVLVAQILLLISFRFEPGTLPCKIMAILLHFF 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 612 FLTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICIISISSSMDSYGTSDSCWLALGSGAIWAFVGPALL 691
Cdd:cd15256    81 FLSAFAWMLVEGLHLYSMVIKVFGSEESKHFYYYGIGWGSPLLICIISLTSALDSYGESDNCWLSLENGAIWAFVAPALF 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 692 VIVVNIVILVAVTRVISHISTDSYKIHGDPSAFKLTAKAVAVLLPILGTSWVFGVLAVSDRALVFQYMFAILNSLQGLFI 771
Cdd:cd15256   161 VIVVNIGILIAVTRVISRISADNYKVHGDANAFKLTAKAVAVLLPILGSSWVFGVLAVNTHALVFQYMFAIFNSLQGFFI 240
                         250       260
                  ....*....|....*....|
gi 1907163470 772 FLFHCLLNSEVRAAFKHKTK 791
Cdd:cd15256   241 FLFHCLLNSEVRAAFKHKTK 260
7tmB2_GPR133-like_Adhesion_V cd15933
orphan GPR133 and related proteins, group V adhesion GPCRs, member of class B2 family of ...
532-786 2.91e-107

orphan GPR133 and related proteins, group V adhesion GPCRs, member of class B2 family of seven-transmembrane G protein-coupled receptors; group V adhesion GPCRs include orphan receptors GPR133, GPR144, and closely related proteins. The function of GPR144 has not yet been characterized, whereas GPR133 is highly expressed in the pituitary gland and is coupled to the G(s) protein, leading to activation of adenylate cyclase pathway. Moreover, genetic variations in the GPR133 have been reported to be associated with adult height and heart rate. The adhesion receptors are characterized by the presence of large N-terminal extracellular domains containing multiple adhesion motifs, which play critical roles in ligand recognition as well as cell-cell adhesion and cell-matrix interactions, linked by a stalk region to a class B seven-transmembrane domain. In addition, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR-autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions. However, several adhesion GPCRs, including GPR 111, GPR115, and CELSR1, are predicted to be non-cleavable at the GAIN domain because of the lack of a consensus catalytic triad sequence (His-Leu-Ser/Thr) within their GPS.


Pssm-ID: 320599 [Multi-domain]  Cd Length: 252  Bit Score: 329.67  E-value: 2.91e-107
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 532 QVALSSISYVGCSLSVLCLAATLVTFAVLSSVSTirnQRYHIHANLSFAVLVAQVLLLISFSMEPGTVPCQVLAVLLHYF 611
Cdd:cd15933     1 ERALSIISYIGCGISIACLALTLIIFLVLRVLSS---DRFQIHKNLCVALLLAQILLLAGEWAEGNKVACKVVAILLHFF 77
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 612 FLTAFAWMLVEGLHLYSMVIKVFgSEDSKHLYYYGIGWGCPLLICIISISSSMDSYGTSDSCWLALGSGAIWAFVGPALL 691
Cdd:cd15933    78 FMAAFSWMLVEGLHLYLMIVKVF-NYKSKMRYYYFIGWGLPAIIVAISLAILFDDYGSPNVCWLSLDDGLIWAFVGPVIF 156
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 692 VIVVNIVILVAVTRVISHISTDSYKIH-GDPSAFKLTAKAVAVLLPILGTSWVFGVLAVSDRALVFQYMFAILNSLQGLF 770
Cdd:cd15933   157 IITVNTVILILVVKITVSLSTNDAKKSqGTLAQIKSTAKASVVLLPILGLTWLFGVLVVNSQTIVFQYIFVILNSLQGLM 236
                         250
                  ....*....|....*.
gi 1907163470 771 IFLFHCLLNSEVRAAF 786
Cdd:cd15933   237 IFLFHCVLNSEVRSAF 252
7tmB2_Adhesion cd15040
adhesion receptors, subfamily B2 of the class B family of seven-transmembrane G ...
532-786 8.28e-77

adhesion receptors, subfamily B2 of the class B family of seven-transmembrane G protein-coupled receptors; The B2 subfamily of class B GPCRs consists of cell-adhesion receptors with 33 members in humans and vertebrates. The adhesion receptors are characterized by the presence of large N-terminal extracellular domains containing a variety of structural motifs, which play critical roles in cell-cell adhesion and cell-matrix interactions, linked to a class B seven-transmembrane domain. These include, for example, EGF (epidermal growth factor)-like domains in CD97, Celsr1 (cadherin family member), Celsr2, Celsr3, EMR1 (EGF-module-containing mucin-like hormone receptor-like 1), EMR2, EMR3, and Flamingo; two laminin A G-type repeats and nine cadherin domains in Flamingo and its human orthologs Celsr1, Celsr2 and Celsr3; olfactomedin-like domains in the latrotoxin receptors; and five or four thrombospondin type 1 repeats in BAI1 (brain-specific angiogenesis inhibitor 1), BAI2 and BAI3. Furthermore, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR- autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions.


Pssm-ID: 320168 [Multi-domain]  Cd Length: 253  Bit Score: 249.80  E-value: 8.28e-77
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 532 QVALSSISYVGCSLSVLCLAATLVTFAVLSSvsTIRNQRYHIHANLSFAVLVAQVLLLISFSMEPGTVPCQVLAVLLHYF 611
Cdd:cd15040     1 EKALSIITYIGCGLSLLGLLLTIITYILFRK--LRKRKPTKILLNLCLALLLANLLFLFGINSTDNPVLCTAVAALLHYF 78
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 612 FLTAFAWMLVEGLHLYSMVIKVFGSEDSK-HLYYYGIGWGCPLLICIISISSSMDSYGTSDS-CWLALGSGAIWAFVGPA 689
Cdd:cd15040    79 LLASFMWMLVEALLLYLRLVKVFGTYPRHfILKYALIGWGLPLIIVIITLAVDPDSYGNSSGyCWLSNGNGLYYAFLGPV 158
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 690 LLVIVVNIVILVAVTRVISHISTDSYKihGDPSAFKLTAKAVAVLLPILGTSWVFGVLAVSDRALVFQYMFAILNSLQGL 769
Cdd:cd15040   159 LLIILVNLVIFVLVLRKLLRLSAKRNK--KKRKKTKAQLRAAVSLFFLLGLTWIFGILAIFGARVVFQYLFAIFNSLQGF 236
                         250
                  ....*....|....*..
gi 1907163470 770 FIFLFHCLLNSEVRAAF 786
Cdd:cd15040   237 FIFIFHCLRNKEVRKAW 253
7tmB2_latrophilin-like_invertebrate cd15440
invertebrate latrophilin-like receptors, member of the class B2 family of seven-transmembrane ...
532-783 1.06e-73

invertebrate latrophilin-like receptors, member of the class B2 family of seven-transmembrane G protein-coupled receptors; This subgroup includes latrophilin-like proteins that are found in invertebrates such as insects and worms. Latrophilins (also called lectomedins or latrotoxin receptors) belong to Group I adhesion GPCRs, which also include ETL (EGF-TM7-latrophilin-related protein). These receptors are a member of the adhesion family (subclass B2) that belongs to the class B GPCRs. Three subtypes of vertebrate latrophilins have been identified: LPH1 (latrophilin-1), LPH2, and LPH3. The latrophilin-1 is a brain-specific calcium-independent receptor of alpha-latrotoxin, a potent presynaptic neurotoxin from the venom of the black widow spider that induces massive neurotransmitter release from sensory and motor neurons as well as endocrine cells, leading to nerve-terminal degeneration. Latrophilin-2 and -3, although sharing strong sequence homology to latrophilin-1, do not bind alpha-latrotoxin. While latrophilin-3 is also brain specific, latrophilin-2 is ubiquitously distributed. The endogenous ligands for these two receptors are unknown. ETL, a seven transmembrane receptor containing EGF-like repeats is highly expressed in heart, where developmentally regulated, as well as in normal smooth cells. The function of the ETL is unknown. All adhesion GPCRs possess large N-terminal extracellular domains containing multiple structural motifs, which play critical roles in cell-cell adhesion and cell-matrix interactions, coupled to a seven-transmembrane domain. In addition, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR-autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions.


Pssm-ID: 320556 [Multi-domain]  Cd Length: 259  Bit Score: 241.40  E-value: 1.06e-73
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 532 QVALSSISYVGCSLSVLCLAATLVTFAVlssVSTIRNQRYHIHANLSFAVLVAQVLLLISFSMEPGTVPCQVLAVLLHYF 611
Cdd:cd15440     1 QSALTFITYIGCIISIVCLLLAFITFTC---FRNLQCDRNTIHKNLCLCLLIAEIVFLLGIDQTENRTLCGVIAGLLHYF 77
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 612 FLTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICIISISSSMDSYGTSDSCWLALGSGAIWAFVGPALL 691
Cdd:cd15440    78 FLAAFSWMLLEGFQLYVMLVEVFEPEKSRIKWYYLFGYGLPALIVAVSAGVDPTGYGTEDHCWLSTENGFIWSFVGPVIV 157
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 692 VIVVNIVILVAVTR-VISHISTD-SYKIHGDPSAFKLTAKAVAVLLPILGTSWVFGVLAVSDRALVFQYMFAILNSLQGL 769
Cdd:cd15440   158 VLLANLVFLGMAIYvMCRHSSRSaSKKDASKLKNIRGWLKGSIVLVVLLGLTWTFGLLFINQESIVMAYIFTILNSLQGL 237
                         250
                  ....*....|....
gi 1907163470 770 FIFLFHCLLNSEVR 783
Cdd:cd15440   238 FIFIFHCVLNEKVR 251
7tm_classB cd13952
class B family of seven-transmembrane G protein-coupled receptors; The class B of ...
533-786 4.38e-64

class B family of seven-transmembrane G protein-coupled receptors; The class B of seven-transmembrane GPCRs is classified into three major subfamilies: subfamily B1 (secretin-like receptor family), B2 (adhesion family), and B3 (Methuselah-like family). The class B receptors have been identified in all the vertebrates, from fishes to mammals, as well as invertebrates including Caenorhabditis elegans and Drosophila melanogaster, but are not present in plants, fungi or prokaryotes. The B1 subfamily comprises receptors for polypeptide hormones of 27-141 amino-acid residues such as secretin, glucagon, glucagon-like peptide (GLP), calcitonin gene-related peptide, parathyroid hormone (PTH), and corticotropin-releasing factor. These receptors contain the large N-terminal extracellular domain (ECD), which plays a critical role in hormone recognition by binding to the C-terminal portion of the peptide. On the other hand, the N-terminal segment of the hormone induces receptor activation by interacting with the receptor transmembrane domains and connecting extracellular loops, triggering intracellular signaling pathways. All members of the subfamily B1 receptors preferentially couple to G proteins of G(s) family, which positively stimulate adenylate cyclase, leading to increased intracellular cAMP formation and calcium influx. The subfamily B2 consists of cell-adhesion receptors with 33 members in humans and vertebrates. The adhesion receptors are characterized by the presence of large N-terminal extracellular domains containing a variety of structural motifs, which play critical roles in cell-cell adhesion and cell-matrix interactions, linked to a class B seven-transmembrane domain. These include, for example, EGF (epidermal growth factor)-like domains in CD97, Celsr1 (cadherin family member), Celsr2, Celsr3, EMR1 (EGF-module-containing mucin-like hormone receptor-like 1), EMR2, EMR3, and Flamingo; two laminin A G-type repeats and nine cadherin domains in Flamingo and its human orthologs Celsr1, Celsr2 and Celsr3; olfactomedin-like domains in the latrotoxin receptors; and five or four thrombospondin type 1 repeats in BAI1 (brain-specific angiogenesis inhibitor 1), BAI2 and BAI3. Almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR- autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions. Furthermore, the subfamily B3 includes Methuselah (Mth) protein, which was originally identified in Drosophila as a GPCR affecting stress resistance and aging, and its closely related proteins.


Pssm-ID: 410627 [Multi-domain]  Cd Length: 260  Bit Score: 215.54  E-value: 4.38e-64
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 533 VALSSISYVGCSLSVLCLAATLVTFAVLSSvstIRNQRYHIHANLSFAVLVAQVLLLISFSME--PGTVPCQVLAVLLHY 610
Cdd:cd13952     2 LALSIITYIGCSLSLVGLLLTIITYLLFPK---LRNLRGKILINLCLSLLLAQLLFLIGQLLTssDRPVLCKALAILLHY 78
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 611 FFLTAFAWMLVEGLHLYSMVIKVFG-SEDSKHLYYYGIGWGCPLL-----ICIISISSSMDSYGTSDSCWLALGSGAIWA 684
Cdd:cd13952    79 FLLASFFWMLVEAFDLYRTFVKVFGsSERRRFLKYSLYGWGLPLLiviitAIVDFSLYGPSPGYGGEYCWLSNGNALLWA 158
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 685 FVGPALLVIVVNIVILVAVTRVISHISTDSyKIHGDPSAFKLTAKAVAVLLPILGTSWVFGVLAV-SDRALVFQYMFAIL 763
Cdd:cd13952   159 FYGPVLLILLVNLVFFILTVRILLRKLRET-PKQSERKSDRKQLRAYLKLFPLMGLTWIFGILAPfVGGSLVFWYLFDIL 237
                         250       260
                  ....*....|....*....|...
gi 1907163470 764 NSLQGLFIFLFHCLLNSEVRAAF 786
Cdd:cd13952   238 NSLQGFFIFLIFCLKNKEVRRLL 260
7tmB2_CELSR_Adhesion_IV cd15441
cadherin EGF LAG seven-pass G-type receptors, group IV adhesion GPCRs, member of the class B2 ...
533-789 5.51e-58

cadherin EGF LAG seven-pass G-type receptors, group IV adhesion GPCRs, member of the class B2 family of seven-transmembrane G protein-coupled receptors; The group IV adhesion GPCRs include the cadherin EGF LAG seven-pass G-type receptors (CELSRs) and their Drosophila homolog Flamingo (also known as Starry night). These receptors are also classified as that belongs to the EGF-TM7 group of subfamily B2 adhesion GPCRs, because they contain EGF-like domains. Functionally, the group IV receptors act as key regulators of many physiological processes such as endocrine cell differentiation, neuronal migration, dendrite growth, axon, guidance, lymphatic vessel and valve formation, and planar cell polarity (PCP) during embryonic development. The adhesion receptors are characterized by the presence of large N-terminal extracellular domains containing multiple adhesion motifs, which play critical roles in cell-cell adhesion and cell-matrix interactions, that are coupled to a class B seven-transmembrane domain. In the case of CELSR/Flamingo/Starry night, their extracellular domains comprise nine cadherin repeats linked to a series of epidermal growth factor (EGF)-like and laminin globular (G)-like domains. The cadherin repeats contain sequence motifs that mediate calcium-dependent cell-cell adhesion by homophilic interactions. Moreover, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR- autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions. Three mammalian orthologs of Flamingo, Celsr1-3, are widely expressed in the nervous system from embryonic development until the adult stage. Each Celsr exhibits different expression patterns in the developing brain, suggesting that they serve distinct functions. Mutations of CELSR1 cause neural tube defects in the nervous system, while mutations of CELSR2 are associated with coronary heart disease. Moreover, CELSR1 and several other PCP signaling molecules, such as dishevelled, prickle, frizzled, have been shown to be upregulated in B lymphocytes of chronic lymphocytic leukemia patients. Celsr3 is expressed in both the developing and adult mouse brain. It has been functionally implicated in proper neuron migration and axon guidance in the CNS.


Pssm-ID: 320557 [Multi-domain]  Cd Length: 254  Bit Score: 198.63  E-value: 5.51e-58
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 533 VALSSISYVGCSLSVLCLAATLVTFAVLSSVSTIRNqryHIHANLSFAVLVAQVLLLISFSMEPGTVPCQVLAVLLHYFF 612
Cdd:cd15441     2 LLLKIVTYIGIGISLVLLVIAFLVLSCLRGLQSNSN---SIHKNLVACLLLAELLFLLGINQTENLFPCKLIAILLHYFY 78
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 613 LTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICIISISSSMDSYGTSDSCWLALGSGAIWAFVGPALLV 692
Cdd:cd15441    79 LSAFSWLLVESLHLYRMLTEPRDINHGHMRFYYLLGYGIPAIIVGLSVGLRPDGYGNPDFCWLSVNETLIWSFAGPIAFV 158
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 693 IVVNIVILVAVTRVISHISTDSYKIhgdpSAFKLTAKAVAVLLPILGTSWVFGVLAVSDRALVFQYMFAILNSLQGLFIF 772
Cdd:cd15441   159 IVITLIIFILALRASCTLKRHVLEK----ASVRTDLRSSFLLLPLLGATWVFGLLAVNEDSELLHYLFAGLNFLQGLFIF 234
                         250
                  ....*....|....*..
gi 1907163470 773 LFHCLLNSEVRAAFKHK 789
Cdd:cd15441   235 LFYCIFNKKVRRELKNA 251
7tmB2_Latrophilin_Adhesion_I cd15252
Latrophilins and similar receptors, group I adhesion GPCRs, member of class B2 family of ...
532-786 6.69e-56

Latrophilins and similar receptors, group I adhesion GPCRs, member of class B2 family of seven-transmembrane G protein-coupled receptors; Group I adhesion GPCRs consist of latrophilins (also called lectomedins or latrotoxin receptors) and ETL (EGF-TM7-latrophilin-related protein. These receptors are a member of the adhesion family (subclass B2) that belongs to the class B GPCRs. Three subtypes of latrophilins have been identified: LPH1 (latrophilin-1), LPH2, and LPH3. The latrophilin-1 is a brain-specific calcium-independent receptor of alpha-latrotoxin, a potent presynaptic neurotoxin from the venom of the black widow spider that induces massive neurotransmitter release from sensory and motor neurons as well as endocrine cells, leading to nerve-terminal degeneration. Latrophilin-2 and -3, although sharing strong sequence homology to latrophilin-1, do not bind alpha-latrotoxin. While latrophilin-3 is also brain specific, latrophilin-2 is ubiquitously distributed. The endogenous ligands for these two receptors are unknown. ETL, a seven transmembrane receptor containing EGF-like repeats is highly expressed in heart, where developmentally regulated, as well as in normal smooth cells. The function of the ETL is unknown. All adhesion GPCRs possess large N-terminal extracellular domains containing multiple structural motifs, which play critical roles in cell-cell adhesion and cell-matrix interactions, coupled to a seven-transmembrane domain. In addition, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR-autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions.


Pssm-ID: 320380 [Multi-domain]  Cd Length: 257  Bit Score: 193.11  E-value: 6.69e-56
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 532 QVALSSISYVGCSLSVLCLAATLVTFAVLSSVSTIRNQryhIHANLSFAVLVAQVLLLISFSMEPGTVPCQVLAVLLHYF 611
Cdd:cd15252     1 YNILTRITQVGIIISLVCLAICIFTFWFFRGLQSDRTT---IHKNLCISLFLAELVFLIGINTTTNKIFCSVIAGLLHYF 77
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 612 FLTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICIISISSSMDSYGTSDSCWLALGSGAIWAFVGPALL 691
Cdd:cd15252    78 FLAAFAWMFIEGIQLYLMLVEVFENEGSRHKNFYIFGYGSPAVIVGVSAALGYRYYGTTKVCWLSTENYFIWSFIGPATL 157
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 692 VIVVNIVILVAVTRVISHISTDSYKIHGDPSAFKLTAKAVAVLLPILGTSWVFGVLAVSDRALVFQYMFAILNSLQGLFI 771
Cdd:cd15252   158 IILLNLIFLGVAIYKMFRHTAGLKPEVSCLENIRSWARGAIALLFLLGLTWIFGVLHINHASVVMAYLFTVSNSLQGMFI 237
                         250
                  ....*....|....*
gi 1907163470 772 FLFHCLLNSEVRAAF 786
Cdd:cd15252   238 FLFHCVLSRKVRKEY 252
7tm_2 pfam00002
7 transmembrane receptor (Secretin family); This family is known as Family B, the ...
535-771 7.66e-54

7 transmembrane receptor (Secretin family); This family is known as Family B, the secretin-receptor family or family 2 of the G-protein-coupled receptors (GCPRs). They have been described in many animal species, but not in plants, fungi or prokaryotes. Three distinct sub-families are recognized. Subfamily B1 contains classical hormone receptors, such as receptors for secretin and glucagon, that are all involved in cAMP-mediated signalling pathways. Subfamily B2 contains receptors with long extracellular N-termini, such as the leukocyte cell-surface antigen CD97; calcium-independent receptors for latrotoxin, and brain-specific angiogenesis inhibitors amongst others. Subfamily B3 includes Methuselah and other Drosophila proteins. Other than the typical seven-transmembrane region, characteriztic structural features include an amino-terminal extracellular domain involved in ligand binding, and an intracellular loop (IC3) required for specific G-protein coupling.


Pssm-ID: 459625 [Multi-domain]  Cd Length: 248  Bit Score: 187.10  E-value: 7.66e-54
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 535 LSSISYVGCSLSVLCLaatLVTFAVLSSVSTIRNQRYHIHANLSFAVLVAQVLLLI----SFSMEPG----TVPCQVLAV 606
Cdd:pfam00002   4 LKVIYTVGYSLSLVAL---LLAIAIFLLFRKLHCTRNYIHLNLFASFILRALLFLVgdavLFNKQDLdhcsWVGCKVVAV 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 607 LLHYFFLTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICIISISSSMDSYGTSDSCWLALGSGAIWAFV 686
Cdd:pfam00002  81 FLHYFFLANFFWMLVEGLYLYTLLVEVFFSERKYFWWYLLIGWGVPALVVGIWAGVDPKGYGEDDGCWLSNENGLWWIIR 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 687 GPALLVIVVNIVILVAVTRVISHISTDSYKIHGDPSAFKLTAKAVAVLLPILGTSWVFGVLAVSDR---ALVFQYMFAIL 763
Cdd:pfam00002 161 GPILLIILVNFIIFINIVRILVQKLRETNMGKSDLKQYRRLAKSTLLLLPLLGITWVFGLFAFNPEntlRVVFLYLFLIL 240

                  ....*...
gi 1907163470 764 NSLQGLFI 771
Cdd:pfam00002 241 NSFQGFFV 248
7tmB2_CD97 cd15438
CD97 antigen, member of the class B2 family of seven-transmembrane G protein-coupled receptors; ...
535-786 2.81e-52

CD97 antigen, member of the class B2 family of seven-transmembrane G protein-coupled receptors; group II adhesion GPCRs, including the leukocyte cell-surface antigen CD97 and the epidermal growth factor (EGF)-module-containing, mucin-like hormone receptor (EMR1-4), are primarily expressed in cells of the immune system. All EGF-TM7 receptors, which belong to the B2 subfamily B2 of adhesion GPCRs, are members of group II, except for ETL (EGF-TM7-latrophilin related protein), which is classified into group I. Members of the EGF-TM7 receptors are characterized by the presence of varying numbers of N-terminal EGF-like domains, which play critical roles in ligand recognition and cell adhesion, linked by a stalk region to a class B seven-transmembrane domain. In the case of CD97, alternative splicing results in three isoforms possessing either three (EGF1,2,5), four (EGF1,2,3,5) or five (EGF1,2,3,4,5) EGF-like domains. Moreover, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR- autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions. For example, CD97, which is involved in angiogenesis and the migration and invasion of tumor cells, has been shown to promote cell aggregation in a GPS proteolysis-dependent manner. CD97 is widely expressed on lymphocytes, monocytes, macrophages, dendritic cells, granulocytes and smooth muscle cells as well as in a variety of human tumors including colorectal, gastric, esophageal pancreatic, and thyroid carcinoma. EMR2 shares strong sequence homology with CD97, differing by only six amino acids. However, unlike CD97, EMR2 is not found in those of CD97-positive tumor cells and is not expressed on lymphocytes but instead on monocytes, macrophages and granulocytes. CD97 has three known ligands: CD55, decay-accelerating factor for regulation of complement system; chondroitin sulfate, a glycosaminoglycan found in the extracellular matrix; and the integrin alpha5beta1, which play a role in angiogenesis. Although EMR2 does not effectively interact with CD55, the fourth EGF-like domain of this receptor binds to chondroitin sulfate to mediate cell attachment.


Pssm-ID: 320554 [Multi-domain]  Cd Length: 261  Bit Score: 183.04  E-value: 2.81e-52
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 535 LSSISYVGCSLSVLCLAATLVTFAVLSSVSTIRNQryhIHANLSFAVLVAQVLLLISFSMEPGTVPCQVLAVLLHYFFLT 614
Cdd:cd15438     4 LTLITKVGLSVSLFCLFLCILTFLFCRSIRGTRNT---IHLHLCLSLFLAHLIFLLGINNTNNQVACAVVAGLLHYFFLA 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 615 AFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICIISISSSMDSYGTSDSCWLALGSGAIWAFVGPALLVIV 694
Cdd:cd15438    81 AFCWMSLEGVELYLMVVQVFNTQSLKKRYLLLIGYGVPLVIVAISAAVNSKGYGTQRHCWLSLERGFLWSFLGPVCLIIL 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 695 VNIVILVAV----TRVISHISTDSYKIHgdpSAFKLTAKAVAVLLpILGTSWVFGVLAVSDRALVFQYMFAILNSLQGLF 770
Cdd:cd15438   161 VNAIIFVITvwklAEKFSSINPDMEKLR---KIRALTITAIAQLC-ILGCTWIFGFFQFSDSTLVMSYLFTILNSLQGLF 236
                         250
                  ....*....|....*.
gi 1907163470 771 IFLFHCLLNSEVRAAF 786
Cdd:cd15438   237 IFLLHCLLSKQVREEY 252
7tmB2_EMR cd15439
epidermal growth factor-like module-containing mucin-like hormone receptors, member of the ...
534-787 5.84e-50

epidermal growth factor-like module-containing mucin-like hormone receptors, member of the class B2 family of seven-transmembrane G protein-coupled receptors; group II adhesion GPCRs, including the epidermal growth factor (EGF)-module-containing, mucin-like hormone receptor (EMR1-4) and the leukocyte cell-surface antigen CD97, are primarily expressed in cells of the immune system. All EGF-TM7 receptors, which belong to the B2 subfamily of adhesion GPCRs, are members of group II, except for ETL (EGF-TM7-latrophilin related protein), which is classified into group I. Members of the EGF-TM7 receptors are characterized by the presence of varying number of N-terminal EGF-like domains, which play critical roles in ligand recognition and cell adhesion, linked by a stalk region to a class B seven-transmembrane domain. In the case of EMR2, alternative splicing results in four isoforms possessing either two (EGF1,2), three (EGF1,2,5), four (EGF1,2,3,5) or five (EGF1,2,3,4,5) EGF-like domains. Moreover, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR-autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions. EMR2 shares strong sequence homology with CD97, differing by only six amino acids. CD97 is widely expressed on lymphocytes, monocytes, macrophages, dendritic cells, granulocytes and smooth muscle cells as well as in a variety of human tumors including colorectal, gastric, esophageal pancreatic, and thyroid carcinoma. However, unlike CD97, EMR2 is not found in those of CD97-positive tumor cells and is not expressed on lymphocytes but instead on monocytes, macrophages and granulocytes. CD97 has three known ligands: CD55, decay-accelerating factor for regulation of complement system; chondroitin sulfate, a glycosaminoglycan found in the extracellular matrix; and the integrin alpha5beta1, which play a role in angiogenesis. Although EMR2 does not effectively interact with CD55, the fourth EGF-like domain of this receptor binds to chondroitin sulfate to mediate cell attachment.


Pssm-ID: 320555 [Multi-domain]  Cd Length: 263  Bit Score: 176.76  E-value: 5.84e-50
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 534 ALSSISYVGCSLSVLCLAATLVTFAVLSSvstIRNQRYHIHANLSFAVLVAQVLLLISFSMEPGTVPCQVLAVLLHYFFL 613
Cdd:cd15439     3 ALTVITYVGLIISLLCLFLAILTFLLCRS---IRNTSTSLHLQLSLCLFLADLLFLVGIDRTDNKVLCSIIAGFLHYLFL 79
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 614 TAFAWMLVEGLHLYSMV-----IKVFGSEDSKHLYYYGIGWGCPLLICIISISSSMDSYGTSDSCWLALGSGAIWAFVGP 688
Cdd:cd15439    80 ACFAWMFLEAVHLFLTVrnlkvVNYFSSHRFKKRFMYPVGYGLPAVIVAISAAVNPQGYGTPKHCWLSMEKGFIWSFLGP 159
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 689 ALLVIVVNIVILVAVTRVI-SHISTdsykIHGDPSAFK----LTAKAVAVLLpILGTSWVFGVLAVSDRALVFQYMFAIL 763
Cdd:cd15439   160 VCVIIVINLVLFCLTLWILrEKLSS----LNAEVSTLKntrlLTFKAIAQLF-ILGCTWILGLFQVGPVATVMAYLFTIT 234
                         250       260
                  ....*....|....*....|....
gi 1907163470 764 NSLQGLFIFLFHCLLNSEVRAAFK 787
Cdd:cd15439   235 NSLQGVFIFLVHCLLNRQVREEYR 258
7tmB2_Latrophilin-1 cd16007
Latrophilin-1, member of the class B2 family of seven-transmembrane G protein-coupled ...
532-786 3.65e-49

Latrophilin-1, member of the class B2 family of seven-transmembrane G protein-coupled receptors; Latrophilins (also called lectomedins or latrotoxin receptors) belong to Group I adhesion GPCRs, which also include ETL (EGF-TM7-latrophilin-related protein). These receptors are a member of the adhesion family (subclass B2) that belongs to the class B GPCRs. Three subtypes of latrophilins have been identified: LPH1 (latrophilin-1), LPH2, and LPH3. The latrophilin-1 is a brain-specific calcium-independent receptor of alpha-latrotoxin, a potent presynaptic neurotoxin from the venom of the black widow spider that induces massive neurotransmitter release from sensory and motor neurons as well as endocrine cells, leading to nerve-terminal degeneration. Latrophilin-2 and -3, although sharing strong sequence homology to latrophilin-1, do not bind alpha-latrotoxin. While latrophilin-3 is also brain specific, latrophilin-2 is ubiquitously distributed. The endogenous ligands for these two receptors are unknown. ETL, a seven transmembrane receptor containing EGF-like repeats is highly expressed in heart, where developmentally regulated, as well as in normal smooth cells. The function of the ETL is unknown. All adhesion GPCRs possess large N-terminal extracellular domains containing multiple structural motifs, which play critical roles in cell-cell adhesion and cell-matrix interactions, coupled to a seven-transmembrane domain. In addition, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR-autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions.


Pssm-ID: 320673 [Multi-domain]  Cd Length: 258  Bit Score: 174.34  E-value: 3.65e-49
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 532 QVALSSISYVGCSLSVLCLAATLVTFAVLSSVSTIRNQryhIHANLSFAVLVAQVLLLISFSMEPGTVPCQVLAVLLHYF 611
Cdd:cd16007     1 ELLLSVITWVGIVISLVCLAICISTFCFLRGLQTDRNT---IHKNLCINLFLAELLFLIGIDKTQYQIACPIFAGLLHFF 77
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 612 FLTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICIISISSSMDSYGTSDSCWLALGSGAIWAFVGPALL 691
Cdd:cd16007    78 FLAAFSWLCLEGVQLYLMLVEVFESEYSRKKYYYLCGYCFPALVVGISAAIDYRSYGTEKACWLRVDNYFIWSFIGPVSF 157
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 692 VIVV----NIVILVAVTRVISHISTDSYKIHGdpsaFKLTAKAVAVLLPILGTSWVFGVLAVSDRALVFQYMFAILNSLQ 767
Cdd:cd16007   158 VIVVnlvfLMVTLHKMIRSSSVLKPDSSRLDN----IKSWALGAITLLFLLGLTWAFGLLFINKESVVMAYLFTTFNAFQ 233
                         250
                  ....*....|....*....
gi 1907163470 768 GLFIFLFHCLLNSEVRAAF 786
Cdd:cd16007   234 GMFIFIFHCALQKKVHKEY 252
7tmB2_Latrophilin-2 cd16006
Latrophilin-2, member of the class B2 family of seven-transmembrane G protein-coupled ...
532-786 7.80e-46

Latrophilin-2, member of the class B2 family of seven-transmembrane G protein-coupled receptors; Latrophilins (also called lectomedins or latrotoxin receptors) belong to Group I adhesion GPCRs, which also include ETL (EGF-TM7-latrophilin-related protein). These receptors are a member of the adhesion family (subclass B2) that belongs to the class B GPCRs. Three subtypes of latrophilins have been identified: LPH1 (latrophilin-1), LPH2, and LPH3. The latrophilin-1 is a brain-specific calcium-independent receptor of alpha-latrotoxin, a potent presynaptic neurotoxin from the venom of the black widow spider that induces massive neurotransmitter release from sensory and motor neurons as well as endocrine cells, leading to nerve-terminal degeneration. Latrophilin-2 and -3, although sharing strong sequence homology to latrophilin-1, do not bind alpha-latrotoxin. While latrophilin-3 is also brain specific, latrophilin-2 is ubiquitously distributed. The endogenous ligands for these two receptors are unknown. ETL, a seven transmembrane receptor containing EGF-like repeats is highly expressed in heart, where developmentally regulated, as well as in normal smooth cells. The function of the ETL is unknown. All adhesion GPCRs possess large N-terminal extracellular domains containing multiple structural motifs, which play critical roles in cell-cell adhesion and cell-matrix interactions, coupled to a seven-transmembrane domain. In addition, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR-autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions.


Pssm-ID: 320672 [Multi-domain]  Cd Length: 258  Bit Score: 165.09  E-value: 7.80e-46
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 532 QVALSSISYVGCSLSVLCLAATLVTFAVLSSVSTIRNQryhIHANLSFAVLVAQVLLLISFSMEPGTVPCQVLAVLLHYF 611
Cdd:cd16006     1 ELLLTVITWVGIVISLVCLAICIFTFCFFRGLQSDRNT---IHKNLCINLFIAEFIFLIGIDKTEYKIACPIFAGLLHFF 77
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 612 FLTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICIISISSSMDSYGTSDSCWLALGSGAIWAFVGPAL- 690
Cdd:cd16006    78 FLAAFAWMCLEGVQLYLMLVEVFESEYSRKKYYYVAGYLFPATVVGVSAAIDYKSYGTEKACWLRVDNYFIWSFIGPVTf 157
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 691 LVIVVNIVILVAVTRVISHIST---DSYKIHGdpsaFKLTAKAVAVLLPILGTSWVFGVLAVSDRALVFQYMFAILNSLQ 767
Cdd:cd16006   158 IILLNLIFLVITLCKMVKHSNTlkpDSSRLEN----IKSWVLGAFALLCLLGLTWSFGLLFINEETIVMAYLFTIFNAFQ 233
                         250
                  ....*....|....*....
gi 1907163470 768 GLFIFLFHCLLNSEVRAAF 786
Cdd:cd16006   234 GMFIFIFHCALQKKVRKEY 252
7tmB2_Latrophilin-3 cd16005
Latrophilin-3, member of the class B2 family of seven-transmembrane G protein-coupled ...
535-786 1.83e-45

Latrophilin-3, member of the class B2 family of seven-transmembrane G protein-coupled receptors; Latrophilins (also called lectomedins or latrotoxin receptors) belong to Group I adhesion GPCRs, which also include ETL (EGF-TM7-latrophilin-related protein). These receptors are a member of the adhesion family (subclass B2) that belongs to the class B GPCRs. Three subtypes of latrophilins have been identified: LPH1 (latrophilin-1), LPH2, and LPH3. The latrophilin-1 is a brain-specific calcium-independent receptor of alpha-latrotoxin, a potent presynaptic neurotoxin from the venom of the black widow spider that induces massive neurotransmitter release from sensory and motor neurons as well as endocrine cells, leading to nerve-terminal degeneration. Latrophilin-2 and -3, although sharing strong sequence homology to latrophilin-1, do not bind alpha-latrotoxin. While latrophilin-3 is also brain specific, latrophilin-2 is ubiquitously distributed. The endogenous ligands for these two receptors are unknown. ETL, a seven transmembrane receptor containing EGF-like repeats is highly expressed in heart, where developmentally regulated, as well as in normal smooth cells. The function of the ETL is unknown. All adhesion GPCRs possess large N-terminal extracellular domains containing multiple structural motifs, which play critical roles in cell-cell adhesion and cell-matrix interactions, coupled to a seven-transmembrane domain. In addition, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR-autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions.


Pssm-ID: 320671 [Multi-domain]  Cd Length: 258  Bit Score: 163.96  E-value: 1.83e-45
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 535 LSSISYVGCSLSVLCLAATLVTFAVLSSVSTIRNQryhIHANLSFAVLVAQVLLLISFSMEPGTVPCQVLAVLLHYFFLT 614
Cdd:cd16005     4 LDVITWVGILLSLVCLLICIFTFCFFRGLQSDRNT---IHKNLCISLFVAELLFLIGINRTDQPIACAVFAALLHFFFLA 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 615 AFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICIISISSSMDSYGTSDSCWLALGSGAIWAFVGPALLVIV 694
Cdd:cd16005    81 AFTWMFLEGVQLYIMLVEVFESEHSRRKYFYLVGYGMPALIVAVSAAVDYRSYGTDKVCWLRLDTYFIWSFIGPATLIIM 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 695 VNIVILVAVTRVISHISTDSYKIHGDPSAFKLTAKAVAVLLPILGTSWVFGVLAVSDRALVFQYMFAILNSLQGLFIFLF 774
Cdd:cd16005   161 LNVIFLGIALYKMFHHTAILKPESGCLDNIKSWVIGAIALLCLLGLTWAFGLMYINESTVIMAYLFTIFNSLQGMFIFIF 240
                         250
                  ....*....|..
gi 1907163470 775 HCLLNSEVRAAF 786
Cdd:cd16005   241 HCVLQKKVRKEY 252
7tmB2_CELSR1 cd15991
Cadherin EGF LAG seven-pass G-type receptor 1, member of the class B2 family of ...
522-787 1.06e-44

Cadherin EGF LAG seven-pass G-type receptor 1, member of the class B2 family of seven-transmembrane G protein-coupled receptors; The group IV adhesion GPCRs include the cadherin EGF LAG seven-pass G-type receptors (CELSRs) and their Drosophila homolog Flamingo (also known as Starry night). These receptors are also classified as that belongs to the EGF-TM7 group of subfamily B2 adhesion GPCRs, because they contain EGF-like domains. Functionally, the group IV receptors act as key regulators of many physiological processes such as endocrine cell differentiation, neuronal migration, dendrite growth, axon, guidance, lymphatic vessel and valve formation, and planar cell polarity (PCP) during embryonic development. Three mammalian orthologs of Flamingo, Celsr1-3, are widely expressed in the nervous system from embryonic development until the adult stage. Each Celsr exhibits different expression patterns in the developing brain, suggesting that they serve distinct functions. Mutations of CELSR1 cause neural tube defects in the nervous system, while mutations of CELSR2 are associated with coronary heart disease. Moreover, CELSR1 and several other PCP signaling molecules, such as dishevelled, prickle, frizzled, have been shown to be upregulated in B lymphocytes of chronic lymphocytic leukemia patients. The adhesion receptors are characterized by the presence of large N-terminal extracellular domains containing multiple adhesion motifs, which play critical roles in cell-cell adhesion and cell-matrix interactions, that are coupled to a class B seven-transmembrane domain. In the case of CELSR/Flamingo/Starry night, their extracellular domains comprise nine cadherin repeats linked to a series of epidermal growth factor (EGF)-like and laminin globular (G)-like domains. The cadherin repeats contain sequence motifs that mediate calcium-dependent cell-cell adhesion by homophilic interactions. Moreover, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR- autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions.


Pssm-ID: 320657 [Multi-domain]  Cd Length: 254  Bit Score: 161.55  E-value: 1.06e-44
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 522 VVPLKLthghqvalssISYVGCSLSvlcLAATLVTFAVLSSVSTIRNQRYHIHANLSFAVLVAQVLLLISFSMEPGTVPC 601
Cdd:cd15991     1 VLPLKI----------ITYTTVSLS---LVALLITFILLVLIRTLRSNLHSIHKNLVAALFFSELIFLIGINQTENPFVC 67
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 602 QVLAVLLHYFFLTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICIISISSSMDSYGTSDSCWLALGSGA 681
Cdd:cd15991    68 TVVAILLHYFYMSTFAWMFVEGLHIYRMLTEVRNINTGHMRFYYVVGWGIPAIITGLAVGLDPQGYGNPDFCWLSVQDTL 147
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 682 IWAFVGPALLVIVVNIVILVAVTRVISHISTDSYKIHGDPSAFkltaKAVAVLLPILGTSWVFGVLAVSDRALVFQYMFA 761
Cdd:cd15991   148 IWSFAGPIGIVVIINTVIFVLAAKASCGRRQRYFEKSGVISML----RTAFLLLLLISATWLLGLMAVNSDTLSFHYLFA 223
                         250       260
                  ....*....|....*....|....*.
gi 1907163470 762 ILNSLQGLFIFLFHCLLNSEVRAAFK 787
Cdd:cd15991   224 IFSCLQGIFIFFFHCIFNKEVRKHLK 249
7tmB2_EMR_Adhesion_II cd15931
EGF-like module receptors, group II adhesion GPCRs, member of class B2 family of ...
535-787 4.10e-44

EGF-like module receptors, group II adhesion GPCRs, member of class B2 family of seven-transmembrane G protein-coupled receptors; group II adhesion GPCRs, including the leukocyte cell-surface antigen CD97 and the epidermal growth factor (EGF)-module-containing, mucin-like hormone receptor (EMR1-4), are primarily expressed in cells of the immune system. All EGF-TM7 receptors, which belong to the B2 subfamily B2 of adhesion GPCRs, are members of group II, except for ETL (EGF-TM7-latrophilin related protein), which is classified into group I. Members of the EGF-TM7 receptors are characterized by the presence of varying numbers of N-terminal EGF-like domains, which play critical roles in ligand recognition and cell adhesion, linked by a stalk region to a class B seven-transmembrane domain. In the case of CD97, alternative splicing results in three isoforms possessing either three (EGF1,2,5), four (EGF1,2,3,5) or five (EGF1,2,3,4,5) EGF-like domains. On the other hand, EMR2 generates four isoforms possessing either two (EGF1,2), three (EGF1,2,5), four (EGF1,2,3,5) or five (EGF1,2,3,4,5) EGF-like domains. Moreover, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR- autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions. For example, CD97, which is involved in angiogenesis and the migration and invasion of tumor cells, has been shown to promote cell aggregation in a GPS proteolysis-dependent manner. CD97 is widely expressed on lymphocytes, monocytes, macrophages, dendritic cells, granulocytes and smooth muscle cells as well as in a variety of human tumors including colorectal, gastric, esophageal pancreatic, and thyroid carcinoma. EMR2 shares strong sequence homology with CD97, differing by only six amino acids. However, unlike CD97, EMR2 is not found in those of CD97-positive tumor cells and is not expressed on lymphocytes but instead on monocytes, macrophages and granulocytes. CD97 has three known ligands: CD55, decay-accelerating factor for regulation of complement system; chondroitin sulfate, a glycosaminoglycan found in the extracellular matrix; and the integrin alpha5beta1, which play a role in angiogenesis. Although EMR2 does not effectively interact with CD55, the fourth EGF-like domain of this receptor binds to chondroitin sulfate to mediate cell attachment.


Pssm-ID: 320597 [Multi-domain]  Cd Length: 262  Bit Score: 160.37  E-value: 4.10e-44
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 535 LSSISYVGCSLSVLCLAATLVTFAVlssVSTIRNQRYHIHANLSFAVLVAQVLLLISFSMEPGTVPCQVLAVLLHYFFLT 614
Cdd:cd15931     4 LEWINRVGVIVSLFCLGLAIFTFLL---CRWIPKINTTAHLHLCLCLSMSHTLFLAGIEYVENELACTVMAGLLHYLFLA 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 615 AFAWMLVEGLHLYSMV-----IKVFGSEDSKHLYYYGIGWGCPLLICIISISSSMDSYGTSDSCWLALGSGAIWAFVGPA 689
Cdd:cd15931    81 SFVWMLLEALQLHLLVrrltkVQVIQRDGLPRPLLCLIGYGVPFLIVGVSALVYSDGYGEAKMCWLSQERGFNWSFLGPV 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 690 LLVIVVNIVILVAV----TRVISHISTDSYKIHgdpSAFKLTAKAVAVLLpILGTSWVFGVLAVSDRALVFQYMFAILNS 765
Cdd:cd15931   161 IAIIGINWILFCATlwclRQTLSNMNSDISQLK---DTRLLTFKAVAQLF-ILGCTWVLGLFQTNPVALVFQYLFTILNS 236
                         250       260
                  ....*....|....*....|..
gi 1907163470 766 LQGLFIFLFHCLLNSEVRAAFK 787
Cdd:cd15931   237 LQGAFLFLVHCLLNKEVREEYI 258
7tmB2_Latrophilin cd15436
Latrophilins, member of the class B2 family of seven-transmembrane G protein-coupled receptors; ...
535-783 6.28e-44

Latrophilins, member of the class B2 family of seven-transmembrane G protein-coupled receptors; Latrophilins (also called lectomedins or latrotoxin receptors) belong to Group I adhesion GPCRs, which also include ETL (EGF-TM7-latrophilin-related protein). These receptors are a member of the adhesion family (subclass B2) that belongs to the class B GPCRs. Three subtypes of latrophilins have been identified: LPH1 (latrophilin-1), LPH2, and LPH3. The latrophilin-1 is a brain-specific calcium-independent receptor of alpha-latrotoxin, a potent presynaptic neurotoxin from the venom of the black widow spider that induces massive neurotransmitter release from sensory and motor neurons as well as endocrine cells, leading to nerve-terminal degeneration. Latrophilin-2 and -3, although sharing strong sequence homology to latrophilin-1, do not bind alpha-latrotoxin. While latrophilin-3 is also brain specific, latrophilin-2 is ubiquitously distributed. The endogenous ligands for these two receptors are unknown. ETL, a seven transmembrane receptor containing EGF-like repeats is highly expressed in heart, where developmentally regulated, as well as in normal smooth cells. The function of the ETL is unknown. All adhesion GPCRs possess large N-terminal extracellular domains containing multiple structural motifs, which play critical roles in cell-cell adhesion and cell-matrix interactions, coupled to a seven-transmembrane domain. In addition, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR-autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions.


Pssm-ID: 320552 [Multi-domain]  Cd Length: 258  Bit Score: 159.57  E-value: 6.28e-44
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 535 LSSISYVGCSLSVLCLAATLVTFAVLSSVSTIRNQryhIHANLSFAVLVAQVLLLISFSMEPGTVPCQVLAVLLHYFFLT 614
Cdd:cd15436     4 LFVITWVGIVISLVCLLICIFTFCFFRGLQTDRNT---IHKNLCINLFIAELLFLIGINRTQYTIACPIFAGLLHFFFLA 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 615 AFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICIISISSSMDSYGTSDSCWLALGSGAIWAFVGPALLVIV 694
Cdd:cd15436    81 AFCWLCLEGVQLYLLLVEVFESEYSRRKYFYLCGYSFPALVVAVSAAIDYRSYGTEKACWLRVDNYFIWSFIGPVTFVIT 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 695 VNIVILVAVT-RVISHIST--DSYKIHGDPSAFKLTAKAvavLLPILGTSWVFGVLAVSDRALVFQYMFAILNSLQGLFI 771
Cdd:cd15436   161 LNLVFLVITLhKMVSHSDLlkPDSSRLDNIKSWALGAIA---LLFLLGLTWSFGLMFINEESVVMAYLFTIFNAFQGVFI 237
                         250
                  ....*....|..
gi 1907163470 772 FLFHCLLNSEVR 783
Cdd:cd15436   238 FIFHCALQKKVR 249
7tmB2_GPR144 cd15255
orphan adhesion receptor GPR114, member of the class B2 family of seven-transmembrane G ...
535-785 2.27e-42

orphan adhesion receptor GPR114, member of the class B2 family of seven-transmembrane G protein-coupled receptors; GPR144 is an orphan receptor that belongs to the group V adhesion-GPCRs together with GPR133. The function of GPR144 has not yet been characterized, whereas GPR133 is highly expressed in the pituitary gland and is coupled to the Gs protein, leading to activation of adenylyl cyclase pathway. Moreover, genetic variations in the GPR133 have been reported to be associated with adult height and heart rate. The adhesion receptors are characterized by the presence of large N-terminal extracellular domains containing multiple adhesion motifs, which play critical roles in ligand recognition as well as cell-cell adhesion and cell-matrix interactions, linked by a stalk region to a class B seven-transmembrane domain. In addition, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR-autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions. However, several adhesion GPCRs, including GPR 111, GPR115, and CELSR1, are predicted to be non-cleavable at the GAIN domain because of the lack of a consensus catalytic triad sequence (His-Leu-Ser/Thr) within their GPS.


Pssm-ID: 320383 [Multi-domain]  Cd Length: 263  Bit Score: 155.39  E-value: 2.27e-42
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 535 LSSISYVGCSLSvlcLAATLVTFAVLSSVSTIRNQRYHIHANLSFAVLVAQVLLLISFSMEPGTVPCQVLAVLLHYFFLT 614
Cdd:cd15255     4 LRTLSFIGCGVS---LCALIVTFILFLAVGVPKSERTTVHKNLIFALAAAEFLLMFSEWAKGNQVACWAVTALLHLFFLA 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 615 AFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICIISISSSMDSYGTSDSCWLALGSGAIWAFVGPALLVIV 694
Cdd:cd15255    81 AFSWMLVEGLLLWSKVVAVNMSEDRRMKFYYVTGWGLPVVIVAVTLATSFNKYVADQHCWLNVQTDIIWAFVGPVLFVLT 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 695 VNIVILVAVTRVISHISTDSYKIHGDPSAFKL--------TAKAVAVLLPILGTSWVFGVLAvsDRALVFQYMFAILNSL 766
Cdd:cd15255   161 VNTFVLFRVVMVTVSSARRRAKMLTPSSDLEKqigiqiwaTAKPVLVLLPVLGLTWLCGVLV--HLSDVWAYVFITLNSF 238
                         250
                  ....*....|....*....
gi 1907163470 767 QGLFIFLFHCLLNSEVRAA 785
Cdd:cd15255   239 QGLYIFLVYAIYNSEVRNA 257
7tmB2_CELSR3 cd15993
Cadherin EGF LAG seven-pass G-type receptor 3, member of the class B2 family of ...
535-787 1.27e-41

Cadherin EGF LAG seven-pass G-type receptor 3, member of the class B2 family of seven-transmembrane G protein-coupled receptors; The group IV adhesion GPCRs include the cadherin EGF LAG seven-pass G-type receptors (CELSRs) and their Drosophila homolog Flamingo (also known as Starry night). These receptors are also classified as that belongs to the EGF-TM7 group of subfamily B2 adhesion GPCRs, because they contain EGF-like domains. Functionally, the group IV receptors act as key regulators of many physiological processes such as endocrine cell differentiation, neuronal migration, dendrite growth, axon, guidance, lymphatic vessel and valve formation, and planar cell polarity (PCP) during embryonic development. Three mammalian orthologs of Flamingo, Celsr1-3, are widely expressed in the nervous system from embryonic development until the adult stage. Each Celsr exhibits different expression patterns in the developing brain, suggesting that they serve distinct functions. Mutations of CELSR1 cause neural tube defects in the nervous system, while mutations of CELSR2 are associated with coronary heart disease. Moreover, CELSR1 and several other PCP signaling molecules, such as dishevelled, prickle, frizzled, have been shown to be upregulated in B lymphocytes of chronic lymphocytic leukemia patients. Celsr3 is expressed in both the developing and adult mouse brain. It has been functionally implicated in proper neuronal migration and axon guidance in the CNS. The adhesion receptors are characterized by the presence of large N-terminal extracellular domains containing multiple adhesion motifs, which play critical roles in cell-cell adhesion and cell-matrix interactions, that are coupled to a class B seven-transmembrane domain. In the case of CELSR/Flamingo/Starry night, their extracellular domains comprise nine cadherin repeats linked to a series of epidermal growth factor (EGF)-like and laminin globular (G)-like domains. The cadherin repeats contain sequence motifs that mediate calcium-dependent cell-cell adhesion by homophilic interactions. Moreover, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR- autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions.


Pssm-ID: 320659 [Multi-domain]  Cd Length: 254  Bit Score: 153.07  E-value: 1.27e-41
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 535 LSSISYVGCSLSvlcLAATLVTFAVLSSVSTIRNQRYHIHANLSFAVLVAQVLLLISFSMEPGTVPCQVLAVLLHYFFLT 614
Cdd:cd15993     4 LAIVTYSSVSAS---LAALVLTFSVLTCLRGLKSNTRGIHSNIAAALFLSELLFLLGINRTENQFLCTVVAILLHYFFLS 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 615 AFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICIISISSSMDSYGTSDSCWLALGSGAIWAFVGPALLVIV 694
Cdd:cd15993    81 TFAWLFVQGLHIYRMQTEARNVNFGAMRFYYAIGWGVPAIITGLAVGLDPEGYGNPDFCWISIHDKLVWSFAGPIVVVIV 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 695 VNIVILVAVTRVISHISTDSYKihgdPSAFKLTAKAVAVLLPILGTSWVFGVLAVSDRALVFQYMFAILNSLQGLFIFLF 774
Cdd:cd15993   161 MNGVMFLLVARMSCSPGQKETK----KTSVLMTLRSSFLLLLLISATWLFGLLAVNNSVLAFHYLHAILCCLQGLAVLLL 236
                         250
                  ....*....|...
gi 1907163470 775 HCLLNSEVRAAFK 787
Cdd:cd15993   237 FCVLNEEVQEAWK 249
7tmB2_ETL cd15437
Epidermal Growth Factor, latrophilin and seven transmembrane domain-containing protein 1; ...
535-783 1.08e-40

Epidermal Growth Factor, latrophilin and seven transmembrane domain-containing protein 1; member of the class B2 family of seven-transmembrane G protein-coupled receptors; ETL (EGF-TM7-latrophilin-related protein) belongs to Group I adhesion GPCRs, which also include latrophilins (also called lectomedins or latrotoxin receptors). All adhesion GPCRs possess large N-terminal extracellular domains containing multiple structural motifs, which play critical roles in cell-cell adhesion and cell-matrix interactions, coupled to a seven-transmembrane domain. ETL, for instance, contains EGF-like repeats, which also present in other EGF-TM7 adhesion GPCRs, such as Cadherin EGF LAG seven-pass G-type receptors (CELSR1-3), EGF-like module receptors (EMR1-3), CD97, and Flamingo. ETL is highly expressed in heart, where developmentally regulated, as well as in normal smooth cells. Furthermore, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR-autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions.


Pssm-ID: 320553 [Multi-domain]  Cd Length: 258  Bit Score: 150.41  E-value: 1.08e-40
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 535 LSSISYVGCSLSVLCLAATLVTFAVLSSvstIRNQRYHIHANLSFAVLVAQVLLLISFSMEPGTVPCQVLAVLLHYFFLT 614
Cdd:cd15437     4 LTRITQLGIIISLICLSMCIFTFWFFSE---IQSTRTTIHKNLCCSLFLAELIFLIGINMNANKLFCSIIAGLLHYFFLA 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 615 AFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICIISISSSMDSYGTSDSCWLALGSGAIWAFVGPALLVIV 694
Cdd:cd15437    81 AFAWMCIEGIHLYLIVVGVIYNKGFLHKNFYIFGYGSPAVVVGISAALGYKYYGTTKVCWLSTENNFIWSFIGPACLIIL 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 695 VNIVILVAVT-RVISHISTDSYKIHGDPSaFKLTAKAVAVLLPILGTSWVFGVLAVSDRALVFQYMFAILNSLQGLFIFL 773
Cdd:cd15437   161 VNLLAFGVIIyKVFRHTAMLKPEVSCYEN-IRSCARGALALLFLLGATWIFGVLHVVYGSVVTAYLFTISNAFQGMFIFI 239
                         250
                  ....*....|
gi 1907163470 774 FHCLLNSEVR 783
Cdd:cd15437   240 FLCVLSRKIQ 249
7tmB2_GPR116-like_Adhesion_VI cd15932
orphan GPR116 and related proteins, group IV adhesion GPCRs, member of the class B2 family of ...
532-787 1.24e-35

orphan GPR116 and related proteins, group IV adhesion GPCRs, member of the class B2 family of seven-transmembrane G protein-coupled receptors; group VI adhesion GPCRs consist of orphan receptors GPR110, GPR111, GPR113, GPR115, GPR116, and closely related proteins. The adhesion receptors are characterized by the presence of large N-terminal extracellular domains containing multiple adhesion motifs, which play critical roles in ligand recognition as well as cell-cell adhesion and cell-matrix interactions, linked by a stalk region to a class B seven-transmembrane domain. GPR110 possesses a SEA box in the N-terminal has been identified as an oncogene over-expressed in lung and prostate cancer. GPR113 contains a hormone binding domain and one EGF (epidermal grown factor) domain. GPR112 has extremely long N-terminus (about 2,400 amino acids) containing a number of Ser/Thr-rich glycosylation sites and a pentraxin (PTX) domain. GPR116 has two C2-set immunoglobulin-like repeats, which is found in the members of the immunoglobulin superfamily of cell surface proteins, and a SEA (sea urchin sperm protein, enterokinase, and a grin)-box, which is present in the extracellular domain of the transmembrane mucin (MUC) family and known to enhance O-glycosylation. In addition, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR-autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions. However, several adhesion GPCRs, including GPR 111, GPR115, and CELSR1, are predicted to be non-cleavable at the GAIN domain because of the lack of a consensus catalytic triad sequence (His-Leu-Ser/Thr) within their GPS.


Pssm-ID: 320598 [Multi-domain]  Cd Length: 268  Bit Score: 136.29  E-value: 1.24e-35
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 532 QVALSSISYVGCSLSVLCLAATLVTFAVLSSVSTIRNQRYHIHA---NLSFAVLVAQVLLLISFSMEPGTVP---CQVLA 605
Cdd:cd15932     1 SPALDYITYVGLGISILSLVLCLIIEALVWKSVTKNKTSYMRHVclvNIALSLLIADIWFIIGAAISTPPNPspaCTAAT 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 606 VLLHYFFLTAFAWMLVEGLHLYSMVIKVFgSEDSKHLYY---YGIGWGCPLLICIISISSSMDS--YGTSDSCWLALG-S 679
Cdd:cd15932    81 FFIHFFYLALFFWMLTLGLLLFYRLVLVF-HDMSKSTMMaiaFSLGYGCPLIIAIITVAATAPQggYTRKGVCWLNWDkT 159
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 680 GAIWAFVGPALLVIVVNIVILVAVTRVISHISTDSYKIHGDPSAFKLTAKAVAVLLPILGTSWVFGV-LAVSDRALVFQY 758
Cdd:cd15932   160 KALLAFVIPALAIVVVNFIILIVVIFKLLRPSVGERPSKDEKNALVQIGKSVAILTPLLGLTWGFGLgTMIDPKSLAFHI 239
                         250       260
                  ....*....|....*....|....*....
gi 1907163470 759 MFAILNSLQGLFIFLFHCLLNSEVRAAFK 787
Cdd:cd15932   240 IFAILNSFQGFFILVFGTLLDSKVREALL 268
7tmB1_CRF-R cd15264
corticotropin-releasing factor receptors, member of the class B family of seven-transmembrane ...
533-789 5.18e-33

corticotropin-releasing factor receptors, member of the class B family of seven-transmembrane G protein-coupled receptors; The vertebrate corticotropin-releasing factor (CRF) receptors are predominantly expressed in central nervous system with high levels in cortex tissue, brain stem, and pituitary. They have two isoforms as a result of alternative splicing of the same receptor gene: CRF-R1 and CRF-R2, which differ in tissue distribution and ligand binding affinities. Recently, a third CRF receptor (CRF-R3) has been identified in catfish pituitary. The catfish CRF-R1 is highly homologous to CRF-R3. CRF is a 41-amino acid neuropeptide that plays a central role in coordinating neuroendocrine, behavioral, and autonomic responses to stress by acting as the primary neuroregulator of the hypothalamic-pituitary-adrenal axis, which controls the levels of cortisol and other stress related hormones. In addition, the CRF family of neuropeptides also includes structurally related peptides such as mammalian urocortin, fish urotensin I, and frog sauvagine. The actions of CRF and CRF-related peptides are mediated through specific binding to CRF-R1 and CRF-R2. CRF and urocortin 1 bind and activate mammalian CRF-R1 with similar high affinities. By contrast, urocortin 2 and urocortin 3 do not bind to CRF-R1 or stimulate CRF-R1-mediated cAMP formation. Urocortin 1 also shows high affinity for mammalian CRF-R2, whereas CRF has significantly lower affinity for this receptor. These evidence suggest that urocortin 1 is an endogenous ligand for CRF-R1 and CRF-R2. The CRF receptors are members of the B1 subfamily of class B GPCRs, also referred to as secretin-like receptor family, which includes receptors for polypeptide hormones of 27-141 amino-acid residues such as secretin, glucagon, glucagon-like peptide (GLP), calcitonin gene-related peptide, and parathyroid hormone (PTH). These receptors contain the large N-terminal extracellular domain (ECD), which plays a critical role in hormone recognition by binding to the C-terminal portion of the peptide. On the other hand, the N-terminal segment of the hormone induces receptor activation by interacting with the receptor transmembrane domains and connecting extracellular loops, triggering intracellular signaling pathways. All members of the B1 subfamily preferentially couple to G proteins of G(s) family, which positively stimulate adenylate cyclase, leading to increased intracellular cAMP formation and calcium influx. However, depending on its cellular location and function, CRF receptors can activate multiple G proteins, which can in turn stimulate different second messenger pathways.


Pssm-ID: 320392 [Multi-domain]  Cd Length: 265  Bit Score: 128.69  E-value: 5.18e-33
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 533 VALSSISYVGCSLSVLCLAATLVTFAVLSSVSTIRNQryhIHANLSFAVLVAQVLLLISFSMEPGTV------PCQVLAV 606
Cdd:cd15264     2 KVALIIYYLGFSISLVALAVALIIFLYFRSLRCLRNN---IHCNLIVTFILRNVTWFIMQNTLTEIHhqsnqwVCRLIVT 78
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 607 LLHYFFLTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICIISISSSMdsYGTSDSCWLALGSGAIWAFV 686
Cdd:cd15264    79 VYNYFQVTNFFWMFVEGLYLHTMIVWAYSADKIRFWYYIVIGWCIPCPFVLAWAIVKL--LYENEHCWLPKSENSYYDYI 156
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 687 --GPALLVIVVNIVILVAVTRVI------SHISTDSYkihgdpsaFKLTAKAVAVLLPILGTSWVFGVLAVSDRA---LV 755
Cdd:cd15264   157 yqGPILLVLLINFIFLFNIVWVLitklraSNTLETIQ--------YRKAVKATLVLLPLLGITYMLFFINPGDDKtsrLV 228
                         250       260       270
                  ....*....|....*....|....*....|....
gi 1907163470 756 FQYMFAILNSLQGLFIFLFHCLLNSEVRAAFKHK 789
Cdd:cd15264   229 FIYFNTFLQSFQGLFVAVFYCFLNGEVRSAIRKK 262
7tmB2_CELSR2 cd15992
Cadherin EGF LAG seven-pass G-type receptor 2, member of the class B2 family of ...
550-787 1.94e-32

Cadherin EGF LAG seven-pass G-type receptor 2, member of the class B2 family of seven-transmembrane G protein-coupled receptors; The group IV adhesion GPCRs include the cadherin EGF LAG seven-pass G-type receptors (CELSRs) and their Drosophila homolog Flamingo (also known as Starry night). These receptors are also classified as that belongs to the EGF-TM7 group of subfamily B2 adhesion GPCRs, because they contain EGF-like domains. Functionally, the group IV receptors act as key regulators of many physiological processes such as endocrine cell differentiation, neuronal migration, dendrite growth, axon, guidance, lymphatic vessel and valve formation, and planar cell polarity (PCP) during embryonic development. Three mammalian orthologs of Flamingo, Celsr1-3, are widely expressed in the nervous system from embryonic development until the adult stage. Each Celsr exhibits different expression patterns in the developing brain, suggesting that they serve distinct functions. Mutations of CELSR1 cause neural tube defects in the nervous system, while mutations of CELSR2 are associated with coronary heart disease. Moreover, CELSR1 and several other PCP signaling molecules, such as dishevelled, prickle, frizzled, have been shown to be upregulated in B lymphocytes of chronic lymphocytic leukemia patients. The adhesion receptors are characterized by the presence of large N-terminal extracellular domains containing multiple adhesion motifs, which play critical roles in cell-cell adhesion and cell-matrix interactions, that are coupled to a class B seven-transmembrane domain. In the case of CELSR/Flamingo/Starry night, their extracellular domains comprise nine cadherin repeats linked to a series of epidermal growth factor (EGF)-like and laminin globular (G)-like domains. The cadherin repeats contain sequence motifs that mediate calcium-dependent cell-cell adhesion by homophilic interactions. Moreover, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR- autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions.


Pssm-ID: 320658  Cd Length: 255  Bit Score: 126.47  E-value: 1.94e-32
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 550 LAATLVTFAVLSSVSTIRNQRYHIHANLSFAVLVAQVLLLISFSMEPGTVPCQVLAVLLHYFFLTAFAWMLVEGLHLYSM 629
Cdd:cd15992    16 LGFLLLTFLFLLCLRALRSNKTSIRKNGATALFLSELVFILGINQADNPFACTVIAILLHFFYLCTFSWLFLEGLHIYRM 95
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 630 VIKVFGSEDSKHLYYYGIGWGCPLLICIISISSSMDSYGTSDSCWLALGSGAIWAFVGPALLVIVVNIVILVAVTRVISH 709
Cdd:cd15992    96 LSEVRDINYGPMRFYYLIGWGVPAFITGLAVGLDPEGYGNPDFCWLSIYDTLIWSFAGPVAFAVSMNVFLYILSSRASCS 175
                         170       180       190       200       210       220       230
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 1907163470 710 ISTDSYKIHGDPSAFKLTAKAVAVLLPIlgtSWVFGVLAVSDRALVFQYMFAILNSLQGLFIFLFHCLLNSEVRAAFK 787
Cdd:cd15992   176 AQQQSFEKKKGPVSGLRTAFTVLLLVSV---TCLLALLSVNSDVILFHYLFAGFNCLQGPFIFLSHVVLLKEVRKALK 250
7tmB2_GPR112 cd15997
Probable G protein-coupled receptor 112, member of the class B2 family of seven-transmembrane ...
535-783 4.68e-32

Probable G protein-coupled receptor 112, member of the class B2 family of seven-transmembrane G protein-coupled receptors; GPR112 is an orphan receptor that has been classified as that belongs to the Group VIII of adhesion GPCRs. Other members of the Group VII include orphan GPCRs such as GPR56, GPR64, GPR97, GPR114, and GPR126. GPR112 is specifically expressed in normal enterochromatin cells and gastrointestinal neuroendocrine carcinoma cells, but its biological function is unknown. The adhesion receptors are characterized by the presence of large N-terminal extracellular domains containing multiple adhesion motifs, which play critical roles in cell-cell adhesion and cell-matrix interactions, that are coupled to a class B seven-transmembrane domain. Furthermore, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR- autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions.


Pssm-ID: 320663  Cd Length: 269  Bit Score: 125.93  E-value: 4.68e-32
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 535 LSSISYVGCSLSVLCLAATLVTFAVLSSVStiRNQRYHIHANLSFAVLVAQVLLLI-----SFSmEPGTvpCQVLAVLLH 609
Cdd:cd15997     4 LTLITYLGCGISSIFLGITLVTYLAFEKLR--RDYPSKILINLCTALLMLNLVFLLnswlsSFN-NYGL--CITVAAFLH 78
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 610 YFFLTAFAWMLVEGLHLYSMVIKVFGSEDSKH-LYYYGIGWGCPLLICIISISSSMDSYGTSDS----------CWLAlg 678
Cdd:cd15997    79 YFLLASFTWMGLEAVHMYFALVKVFNIYIPNYiLKFCIAGWGIPAVVVALVLAINKDFYGNELSsdslhpstpfCWIQ-- 156
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 679 sgAIWAF----VGPALLVIVVNIVILVAVTRVISHISTDSYKiHGDPSAFKLTAKAVAVLLPILGTSWVFGVLAVSDRAL 754
Cdd:cd15997   157 --DDVVFyisvVAYFCLIFLCNISMFITVLIQIRSMKAKKPS-RNWKQGFLHDLKSVASLTFLLGLTWGFAFFAWGPVRI 233
                         250       260
                  ....*....|....*....|....*....
gi 1907163470 755 VFQYMFAILNSLQGLFIFLFHCLLNSEVR 783
Cdd:cd15997   234 FFLYLFSICNTLQGFFIFVFHCLMKENVR 262
7tmB1_hormone_R cd15041
The subfamily B1 of hormone receptors (secretin-like), member of the class B family ...
533-789 4.84e-32

The subfamily B1 of hormone receptors (secretin-like), member of the class B family seven-transmembrane G protein-coupled receptors; The B1 subfamily of class B GPCRs, also referred to as secretin-like receptor family, includes receptors for polypeptide hormones of 27-141 amino-acid residues such as secretin, glucagon, glucagon-like peptide (GLP), calcitonin gene-related peptide, parathyroid hormone (PTH), and corticotropin-releasing factor. These receptors contain the large N-terminal extracellular domain (ECD), which plays a critical role in hormone recognition by binding to the C-terminal portion of the peptide. On the other hand, the N-terminal segment of the hormone induces receptor activation by interacting with the receptor transmembrane domains and connecting extracellular loops, triggering intracellular signaling pathways. All members of this subfamily preferentially couple to G proteins of G(s) family, which positively stimulate adenylate cyclase, leading to increased intracellular cAMP formation and calcium influx. Moreover, the B1 subfamily receptors play key roles in hormone homeostasis and are promising drug targets in various human diseases including diabetes, osteoporosis, obesity, neurodegenerative conditions (Alzheimer###s and Parkinson's), cardiovascular disease, migraine, and psychiatric disorders (anxiety, depression). Furthermore, the subfamilies B2 and B3 consist of receptors that are capable of interacting with epidermal growth factors (EGF) and the Drosophila melanogaster Methuselah gene product (Mth), respectively. The class B GPCRs have been identified in all the vertebrates, from fishes to mammals, as well as invertebrates including Caenorhabditis elegans and Drosophila melanogaster, but are not present in plants, fungi, or prokaryotes.


Pssm-ID: 341321 [Multi-domain]  Cd Length: 273  Bit Score: 125.80  E-value: 4.84e-32
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 533 VALSSISYVGCSLSVLCLAATLVTFAVLSSvstIRNQRYHIHANLSFAVLVAQVLLLIS---------------FSMEPG 597
Cdd:cd15041     2 LVVYYIYLVGYSLSLVALLPAIVIFLYFRS---LRCTRIRLHINLFLSFILRAVFWIIWdllvvydrltssgveTVLMQN 78
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 598 TVPCQVLAVLLHYFFLTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICIISISSSMdsYGTSDSCWLAL 677
Cdd:cd15041    79 PVGCKLLSVLKRYFKSANYFWMLCEGLYLHRLIVVAFFSEPSSLKLYYAIGWGLPLVIVVIWAIVRA--LLSNESCWISY 156
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 678 GSGAI-WAFVGPALLVIVVNIVILVAVTRV-ISHISTDSykiHGDPSAFKLTAKAVAVLLPILGTSWVFGVLAVSDRA-- 753
Cdd:cd15041   157 NNGHYeWILYGPNLLALLVNLFFLINILRIlLTKLRSHP---NAEPSNYRKAVKATLILIPLFGIQYLLTIYRPPDGSeg 233
                         250       260       270
                  ....*....|....*....|....*....|....*..
gi 1907163470 754 -LVFQYMFAILNSLQGLFIFLFHCLLNSEVRAAFKHK 789
Cdd:cd15041   234 eLVYEYFNAILNSSQGFFVAVIYCFLNGEVQSELKRK 270
7tmB2_BAI_Adhesion_VII cd15251
brain-specific angiogenesis inhibitors, group VII adhesion GPCRs, member of the class B2 ...
541-787 1.19e-30

brain-specific angiogenesis inhibitors, group VII adhesion GPCRs, member of the class B2 family of seven-transmembrane G protein-coupled receptors; Brain-specific angiogenesis inhibitors (BAI1-3) constitute the group VII of cell-adhesion receptors that have been implicated in vascularization of glioblastomas. They belong to the B2 subfamily of class B GPCRs, are predominantly expressed in the brain, and are only present in vertebrates. Three BAIs, like all adhesion receptors, are characterized by the presence of large N-terminal extracellular domains containing multiple adhesion motifs, which play critical roles in cell-cell adhesion and cell-matrix interactions, that are coupled to a class B seven-transmembrane domain. For example, BAI1 N-terminus contain an integrin-binding RGD (Arg-Gly-Asp) motif in addition to five thrombospondin type 1 repeats (TSRs), which are known to regulate the anti-angiogenic activity of thrombospondin-1, whereas BAI2 and BAI3 have four TSRs, but do not possess RGD motifs. The TSRs are functionally involved in cell attachment, activation of latent TGF-beta, inhibition of angiogenesis and endothelial cell migration. The TSRs of BAI1 mediate direct binding to phosphatidylserine, which enables both recognition and internalization of apoptotic cells by phagocytes. Thus, BAI1 functions as a phosphatidylserine receptor that forms a trimeric complex with ELMO and Dock180, leading to activation of Rac-GTPase which promotes the binding and phagocytosis of apoptotic cells. BAI3 can also interact with the ELMO-Dock180 complex to activate the Rac pathway and can also bind to secreted C1ql proteins of the C1Q complement family via its N-terminal TSRs. BAI3 and its ligands C1QL1 are highly expressed during synaptogenesis and are involved in synapse specificity. Moreover, BAI2 acts as a transcription repressor to regulate vascular endothelial growth factor (VEGF) expression through interaction with GA-binding protein gamma (GABP). The N-terminal extracellular domains of all three BAIs also contain an evolutionarily conserved GPCR-autoproteolysis inducing (GAIN) domain, which undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif to generate N- and C-terminal fragments (NTF and CTF), a putative hormone-binding domain (HBD), and multiple N-glycosylation sites. The C-terminus of each BAI subtype ends with a conserved Gln-Thr-Glu-Val (QTEV) motif known to interact with PDZ domain-containing proteins, but only BAI1 possesses a proline-rich region, which may be involved in protein-protein interactions.


Pssm-ID: 320379  Cd Length: 253  Bit Score: 121.21  E-value: 1.19e-30
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 541 VGCSLSVLCLAATLVTFAVLSSVstIRNQRYHIHANLSFAVLVAQVLLLISFSMEPGTVPCQVLAVLLHYFFLTAFAWML 620
Cdd:cd15251    10 VGCGVSCLALLTLLAIYAAFWRY--IRSERSIILINFCLSIISSNILILVGQTQTLNKGVCTMTAAFLHFFFLSSFCWVL 87
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 621 VEGLHLYSMVIKVFGSEDSKHlYYYGIGWGCP-LLICIISISSSMDSYGTSDSCWLALGSGAIWAFVGPALLVIVVNIVI 699
Cdd:cd15251    88 TEAWQSYMAVTGRMRTRLIRK-RFLCLGWGLPaLVVAVSVGFTRTKGYGTSSYCWLSLEGGLLYAFVGPAAAVVLVNMVI 166
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 700 LVAVTRVIshISTDSYKIHGDPSAFkltakAVAVLLPILGTSWVFGVLAVSD-RALVFQYMFAILNSLQGLFIFLFHCLL 778
Cdd:cd15251   167 GILVFNKL--VSRDGISDNAMASLW-----SSCVVLPLLALTWMSAVLAMTDrRSVLFQILFAVFDSLQGFVIVMVHCIL 239

                  ....*....
gi 1907163470 779 NSEVRAAFK 787
Cdd:cd15251   240 RREVQDAVK 248
7tmB1_DH_R cd15263
insect diuretic hormone receptors, member of the class B family of seven-transmembrane G ...
536-788 5.75e-30

insect diuretic hormone receptors, member of the class B family of seven-transmembrane G protein-coupled receptors; This group includes G protein-coupled receptors that specifically bind to insect diuretic hormones found in Manduca sexta (moth) and Acheta domesticus (the house cricket), among others. Insect diuretic hormone and their GPCRs play critical roles in the regulation of water and ion balance. Thus they are attractive targets for developing new insecticides. Activation of the diuretic hormone receptors stimulate adenylate cyclase, thereby increasing cAMP levels in Malpighian tube. They belong to the B1 subfamily of class B GPCRs, also referred to as secretin-like receptor family, which includes receptors for polypeptide hormones of 27-141 amino-acid residues such as secretin, glucagon, glucagon-like peptide (GLP), calcitonin gene-related peptide, parathyroid hormone (PTH), and corticotropin-releasing factor. These receptors contain the large N-terminal extracellular domain (ECD), which plays a critical role in hormone recognition by binding to the C-terminal portion of the peptide. On the other hand, the N-terminal segment of the hormone induces receptor activation by interacting with the receptor transmembrane domains and connecting extracellular loops, triggering intracellular signaling pathways. All members of the B1 subfamily preferentially couple to G proteins of Gs family, which positively stimulate adenylate cyclase, leading to increased intracellular cAMP formation and calcium influx.


Pssm-ID: 320391 [Multi-domain]  Cd Length: 272  Bit Score: 119.78  E-value: 5.75e-30
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 536 SSISYVGCSLSVLCLAATLVTFAVLSSVSTIRNQryhIHANLSFAVLVAQVLLLISF----SMEPGTVPCQVLAVLLHYF 611
Cdd:cd15263     5 TTIYFIGYSLSLVALSLALWIFLYFKDLRCLRNT---IHTNLMFTYILADLTWILTLtlqvSIGEDQKSCIILVVLLHYF 81
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 612 FLTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLL----------ICIISISSSMDSYGTSDSCWLALGSGA 681
Cdd:cd15263    82 HLTNFFWMFVEGLYLYMLVVETFSGENIKLRVYAFIGWGIPAVviviwaivkaLAPTAPNTALDPNGLLKHCPWMAEHIV 161
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 682 IWAFVGPALLVIVVNIVILVAVTRVI-------SHISTDSYkihgdpsafKLTAKAVAVLLPILGTSWVFGVLAVSDR-- 752
Cdd:cd15263   162 DWIFQGPAILVLAVNLVFLVRIMWVLitklrsaNTVETQQY---------RKAAKALLVLIPLLGITYILVIAGPTEGia 232
                         250       260       270
                  ....*....|....*....|....*....|....*.
gi 1907163470 753 ALVFQYMFAILNSLQGLFIFLFHCLLNSEVRAAFKH 788
Cdd:cd15263   233 ANIFEYVRAVLLSTQGFTVALFYCFLNTEVRNTLRH 268
7tmB2_GPR126-like_Adhesion_VIII cd15258
orphan GPR126 and related proteins, group VIII adhesion GPCRs, member of the class B2 family ...
534-784 1.29e-29

orphan GPR126 and related proteins, group VIII adhesion GPCRs, member of the class B2 family of seven-transmembrane G protein-coupled receptors; Group VIII adhesion GPCRs include orphan GPCRs such as GPR56, GPR64, GPR97, GPR112, GPR114, and GPR126. GPR56 is involved in the regulation of oligodendrocyte development and myelination in the central nervous system via coupling to G(12/13) proteins, which leads to the activation of RhoA GTPase. GPR126, on the other hand, is required for Schwann cells, but not oligodendrocyte myelination in the peripheral nervous system. Gpr64 is mainly expressed in the epididymis of male reproductive tract, and targeted deletion of GPR64 causes sperm stasis and efferent duct blockage due to abnormal fluid reabsorption, resulting in male infertility. GPR64 is also over-expressed in Ewing's sarcoma (ES), as well as upregulated in other carcinomas from kidney, prostate or lung, and promotes invasiveness and metastasis in ES via the upregulation of placental growth factor (PGF) and matrix metalloproteinase (MMP) 1. GPR97 is identified as a lymphatic adhesion receptor that is specifically expressed in lymphatic endothelium, but not in blood vascular endothelium, and is shown to regulate migration of lymphatic endothelial cells via the small GTPases RhoA and cdc42. GPR112 is specifically expressed in normal enterochromatin cells and gastrointestinal neuroendocrine carcinoma cells, but its biological function is unknown. GPR114 is mainly found in granulocytes (polymorphonuclear leukocytes), and GPR114-transfected cells induced an increase in cAMP levels via coupling to G(s) protein. The adhesion receptors are characterized by the presence of large N-terminal extracellular domains containing multiple adhesion motifs, which play critical roles in cell-cell adhesion and cell-matrix interactions, that are coupled to a class B seven-transmembrane domain. Furthermore, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR- autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions.


Pssm-ID: 320386 [Multi-domain]  Cd Length: 267  Bit Score: 118.67  E-value: 1.29e-29
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 534 ALSSISYVGCSLSVLCLAATLVTFAVLSSVStiRNQRYHIHANLSFAVLVAQVLLLIS--FSMEPGTVPCQVLAVLLHYF 611
Cdd:cd15258     3 ILTFISYVGCGISAIFLAITILTYIAFRKLR--RDYPSKIHMNLCAALLLLNLAFLLSswIASFGSDGLCIAVAVALHYF 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 612 FLTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGI-GWGCPLLICIISISSSMDSYGT-----------SDSCW----- 674
Cdd:cd15258    81 LLACLTWMGLEAFHLYLLLVKVFNTYIRRYILKLCLvGWGLPALLVTLVLSVRSDNYGPitipngegfqnDSFCWirdpv 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 675 ----LALGSGAIWAFVGPALLVIvvnivilvavtrVISHISTDSYKIHGDPSAFKLT-AKAVAVLLPILGTSWVFGVLAV 749
Cdd:cd15258   161 vfyiTVVGYFGLTFLFNMVMLAT------------VLVQICRLREKAQATPRKRALHdLLTLLGLTFLLGLTWGLAFFAW 228
                         250       260       270
                  ....*....|....*....|....*....|....*
gi 1907163470 750 SDRALVFQYMFAILNSLQGLFIFLFHCLLNSEVRA 784
Cdd:cd15258   229 GPFNLPFLYLFAIFNSLQGFFIFIWYCSMKENVRK 263
7tmB2_GPR124-like_Adhesion_III cd15259
orphan GPR124 and related proteins, group III adhesion GPCRs, member of class B2 family of ...
535-787 1.99e-28

orphan GPR124 and related proteins, group III adhesion GPCRs, member of class B2 family of seven-transmembrane G protein-coupled receptors; group III adhesion GPCRs include orphan GPR123, GPR124, GPR125, and their closely related proteins. The adhesion receptors are characterized by the presence of large N-terminal extracellular domains containing multiple adhesion motifs, which play critical roles in cell-cell adhesion and cell-matrix interactions, that are coupled to a class B seven-transmembrane domain. Furthermore, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR- autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions. GPR123 is predominantly expressed in the CNS including thalamus, brain stem and regions containing large pyramidal cells. GPR124, also known as tumor endothelial marker 5 (TEM5), is highly expressed in tumor vessels and in the vasculature of the developing embryo. GPR124 is essentially required for proper angiogenic sprouting into neural tissue, CNS-specific vascularization, and formation of the blood-brain barrier. GPR124 also interacts with the PDZ domain of DLG1 (discs large homolog 1) through its PDZ-binding motif. Recently, studies of double-knockout mice showed that GPR124 functions as a co-activator of Wnt7a/Wnt7b-dependent beta-catenin signaling in brain endothelium. Furthermore, WNT7-stimulated beta-catenin signaling is regulated by GPR124's intracellular PDZ binding motif and leucine-rich repeats (LRR) in its N-terminal extracellular domain. GPR125 directly interacts with dishevelled (Dvl) via its intracellular C-terminus, and together, GPR125 and Dvl recruit a subset of planar cell polarity (PCP) components into membrane subdomains, a prerequisite for activation of Wnt/PCP signaling. Thus, GPR125 influences the noncanonical WNT/PCP pathway, which does not involve beta-catenin, through interacting with and modulating the distribution of Dvl.


Pssm-ID: 320387 [Multi-domain]  Cd Length: 260  Bit Score: 115.17  E-value: 1.99e-28
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 535 LSSISYVGCSLSVLCLAATLVTFAVLSSVSTIRNQRYHIHANLSFAVLVAQVLLLISFSMEPGTVPCQVLAVLLHYFFLT 614
Cdd:cd15259     4 LHPVVYAGAALCLLCLLATIITYIVFHRLIRISRKGRHMLVNLCLHLLLTCVVFVGGINRTANQLVCQAVGILLHYSTLC 83
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 615 AFAWMLVEGLHLYSMVIKVFGS---------EDSKHLYYYGIGWGCPLLICIISISSSMDSYGTSDSCWLAlGSGAIWAF 685
Cdd:cd15259    84 TLLWVGVTARNMYKQVTKTAKPpqdedqpprPPKPMLRFYLIGWGIPLIICGITAAVNLDNYSTYDYCWLA-WDPSLGAF 162
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 686 VGPALLVIVVNivilvavtrVISHISTdSYKIHGDPSAFKLTAKAVAVLLPILGTSWVFGVLAVSDRA---LVFQYMFAI 762
Cdd:cd15259   163 YGPAALIVLVN---------CIYFLRI-YCQLKGAPVSFQSQLRGAVITLFLYVAMWACGALAVSQRYfldLVFSCLYGA 232
                         250       260
                  ....*....|....*....|....*
gi 1907163470 763 LNSLQGLFIFLFHCLLNSEVRAAFK 787
Cdd:cd15259   233 TCSSLGLFVLIHHCLSREDVRQSWR 257
7tmB3_Methuselah-like cd15039
Methuselah-like subfamily B3, member of the class B family of seven-transmembrane G ...
534-789 7.22e-28

Methuselah-like subfamily B3, member of the class B family of seven-transmembrane G protein-coupled receptors; The subfamily B3 of class B GPCRs consists of Methuselah (Mth) and its closely related proteins found in bilateria. Mth was originally identified in Drosophila as a GPCR affecting stress resistance and aging. In addition to the seven transmembrane helices, Mth contains an N-terminal extracellular domain involved in ligand binding, and a third intracellular loop (IC3) required for the specificity of G-protein coupling. Drosophila Mth mutants showed an increase in average lifespan by 35% and greater resistance to a variety of stress factors, including starvation, high temperature, and paraquat-induced oxidative toxicity. Moreover, mutations in two endogenous peptide ligands of Methuselah, Stunted A and B, showed an increased in lifespan and resistance to oxidative stress induced by dietary paraquat. These results strongly suggest that the Stunted-Methuselah system plays important roles in stress response and aging.


Pssm-ID: 410632 [Multi-domain]  Cd Length: 270  Bit Score: 113.86  E-value: 7.22e-28
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 534 ALSSISYVGCSLSVLCLAATLVTFAVLSSVstiRNQRYHIHANLSFAVLVAQVLLLI-SFSMEPGTVPCQVLAVLLHYFF 612
Cdd:cd15039     3 ILGILTLIGLIISLVFLLLTLAVYALLPEL---RNLHGKCLMCLVLSLFVAYLLLLIgQLLSSGDSTLCVALGILLHFFF 79
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 613 LTAFAWMLVEGLHLY----SMVIKVFGSEDSKHLYYYGI-GWGCPLLI--------CIISISSSMDSYGTsDSCWLALGS 679
Cdd:cd15039    80 LAAFFWLNVMSFDIWrtfrGKRSSSSRSKERKRFLRYSLyAWGVPLLLvavtiivdFSPNTDSLRPGYGE-GSCWISNPW 158
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 680 GAIWAFVGPALLVIVVNIVILVAVTRVISHISTDSYKIHGDPSAFKLTAKAVAVLLPILGTSWVFGVLA-VSDRALVFQY 758
Cdd:cd15039   159 ALLLYFYGPVALLLLFNIILFILTAIRIRKVKKETAKVQSRLRSDKQRFRLYLKLFVIMGVTWILEIISwFVGGSSVLWY 238
                         250       260       270
                  ....*....|....*....|....*....|.
gi 1907163470 759 MFAILNSLQGLFIFLFhCLLNSEVRAAFKHK 789
Cdd:cd15039   239 IFDILNGLQGVFIFLI-FVCKRRVLRLLKKK 268
7tmB2_BAI2 cd15988
brain-specific angiogenesis inhibitor 2, a group VII adhesion GPCR, member of the class B2 ...
541-787 3.14e-27

brain-specific angiogenesis inhibitor 2, a group VII adhesion GPCR, member of the class B2 family of seven-transmembrane G protein-coupled receptors; Brain-specific angiogenesis inhibitors (BAI1-3) constitute the group VII of cell-adhesion receptors that have been implicated in vascularization of glioblastomas. They belong to the B2 subfamily of class B GPCRs, are predominantly expressed in the brain, and are only present in vertebrates. Three BAIs, like all adhesion receptors, are characterized by the presence of large N-terminal extracellular domains containing multiple adhesion motifs, which play critical roles in cell-cell adhesion and cell-matrix interactions, that are coupled to a class B seven-transmembrane domain. For example, BAI1 N-terminus contain an integrin-binding RGD (Arg-Gly-Asp) motif in addition to five thrombospondin type 1 repeats (TSRs), which are known to regulate the anti-angiogenic activity of thrombospondin-1, whereas BAI2 and BAI3 have four TSRs, but do not possess RGD motifs. The TSRs are functionally involved in cell attachment, activation of latent TGF-beta, inhibition of angiogenesis and endothelial cell migration. The TSRs of BAI1 mediates direct binding to phosphatidylserine, which enables both recognition and internalization of apoptotic cells by phagocytes. Thus, BAI1 functions as a phosphatidylserine receptor that forms a trimeric complex with ELMO and Dock180, leading to activation of Rac-GTPase which promotes the binding and phagocytosis of apoptotic cells. BAI3 can also interact with the ELMO-Dock180 complex to activate the Rac pathway and can also bind to secreted C1ql proteins of the C1Q complement family via its N-terminal TSRs. BAI3 and its ligands C1QL1 are highly expressed during synaptogenesis and are involved in synapse specificity. Moreover, BAI2 acts as a transcription repressor to regulate vascular endothelial growth factor (VEGF) expression through interaction with GA-binding protein gamma (GABP). The N-terminal extracellular domains of all three BAIs also contain an evolutionarily conserved GPCR-autoproteolysis inducing (GAIN) domain, which undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif to generate N- and C-terminal fragments (NTF and CTF), a putative hormone-binding domain (HBD), and multiple N-glycosylation sites. The C-terminus of each BAI subtype ends with a conserved Gln-Thr-Glu-Val (QTEV) motif known to interact with PDZ domain-containing proteins, but only BAI1 possesses a proline-rich region, which may be involved in protein-protein interactions.


Pssm-ID: 320654 [Multi-domain]  Cd Length: 291  Bit Score: 112.36  E-value: 3.14e-27
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 541 VGCSLSVLCLAATLVTFAVLSSVstIRNQRYHIHANLSFAVLVAQVLLLISFSMEPGTVPCQVLAVLLHYFFLTAFAWML 620
Cdd:cd15988    10 IGCAVSCMALLILLAIYAAFWRF--IRSERSIILLNFCLSILASNILILVGQSQTLSKGVCTMTAAFLHFFFLSSFCWVL 87
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 621 VEGLHLYSMVIKVFGSEDSKHlYYYGIGWGCP-LLICIISISSSMDSYGTSDSCWLALGSGAIWAFVGPALLVIVVNIVI 699
Cdd:cd15988    88 TEAWQSYLAVIGRMRTRLVRK-RFLCLGWGLPaLVVAVSVGFTRTKGYGTASYCWLSLEGGLLYAFVGPAAVIVLVNMLI 166
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 700 -LVAVTRVISH--ISTDSYKIH------------------GDPSAFKLTA----KAVA------VLLPILGTSWVFGVLA 748
Cdd:cd15988   167 gIIVFNKLMSRdgISDKSKKQRagseaepcsslllkcskcGVVSSAAMSSatasSAMAslwsscVVLPLLALTWMSAVLA 246
                         250       260       270       280
                  ....*....|....*....|....*....|....*....|
gi 1907163470 749 VSD-RALVFQYMFAILNSLQGLFIFLFHCLLNSEVRAAFK 787
Cdd:cd15988   247 MTDrRSILFQVLFAVFNSVQGFVIITVHCFLRREVQDVVK 286
7tmB2_GPR116_Ig-Hepta cd15254
The immunoglobulin-repeat-containing receptor Ig-hepta/GPR116, member of the class B2 family ...
533-789 5.98e-27

The immunoglobulin-repeat-containing receptor Ig-hepta/GPR116, member of the class B2 family of seven-transmembrane G protein-coupled receptors; GPR116 (also known as Ig-hepta) is an orphan receptor that belongs to group VI adhesion-GPCRs along with GPR110, GPR111, GPR113, and GPR115. The adhesion receptors are characterized by the presence of large N-terminal extracellular domains containing multiple adhesion motifs, which play critical roles in ligand recognition as well as cell-cell adhesion and cell-matrix interactions, linked by a stalk region to a class B seven-transmembrane domain. GPR116 has four I-set immunoglobulin-like repeats, which is found in the members of the immunoglobulin superfamily of cell surface proteins, and a SEA (sea urchin sperm protein, enterokinase, and a grin)-box, which is present in the extracellular domain of the transmembrane mucin (MUC) family and known to enhance O-glycosylation. GPR116 is highly expressed in fetal and adult lung, and it has been shown to regulate lung surfactant levels as well as to stimulate breast cancer metastasis through a G(q)-p63-RhoGEF-Rho GTPase signaling pathway. In addition, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR-autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions. However, several adhesion GPCRs, including GPR 111, GPR115, and CELSR1, are predicted to be non-cleavable at the GAIN domain because of the lack of a consensus catalytic triad sequence (His-Leu-Ser/Thr) within their GPS.


Pssm-ID: 320382 [Multi-domain]  Cd Length: 275  Bit Score: 111.05  E-value: 5.98e-27
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 533 VALSSISYVGCSLSVLCLAATLVTFAVLSSVSTIRNQRYHIHA---NLSFAVLVAQVLLLISFSMEPGTVP-----CQVL 604
Cdd:cd15254     2 DELDYITYIGLSISILSLAICIVIESLVWKSVTKNRTSYMRHVcilNIAVSLLIADIWFIVVAAIQDQNYAvngnvCVAA 81
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 605 AVLLHYFFLTAFAWMLVEGLHLYSMVIKVF--GSEDSKHLYYYGIGWGCPLLICIISISSSM--DSYGTSDSCWLAL-GS 679
Cdd:cd15254    82 TFFIHFFYLCVFFWMLALGLMLFYRLVFILhdTSKTIQKAVAFCLGYGCPLIISVITIAVTLprDSYTRKKVCWLNWeDS 161
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 680 GAIWAFVGPALLVIVVNIVILVAVTRVISHISTDSYKIHGDPSAFKLTAKAVAVLLPILGTSWVFGVLAVS-DRALVFQY 758
Cdd:cd15254   162 KALLAFVIPALIIVAVNSIITVVVIVKILRPSIGEKPSKQERSSLFQIIKSIGVLTPLLGLTWGFGLATVIkGSSIVFHI 241
                         250       260       270
                  ....*....|....*....|....*....|.
gi 1907163470 759 MFAILNSLQGLFIFLFHCLLNSEVRAAFKHK 789
Cdd:cd15254   242 LFTLLNAFQGLFILVFGTLWDKKVQEALLNK 272
7tmB2_BAI1 cd15990
brain-specific angiogenesis inhibitor 1, a group VII adhesion GPCR, member of the class B2 ...
541-787 3.22e-26

brain-specific angiogenesis inhibitor 1, a group VII adhesion GPCR, member of the class B2 family of seven-transmembrane G protein-coupled receptors; Brain-specific angiogenesis inhibitors (BAI1-3) constitute the group VII of cell-adhesion receptors that have been implicated in vascularization of glioblastomas. They belong to the B2 subfamily of class B GPCRs, are predominantly expressed in the brain, and are only present in vertebrates. Three BAIs, like all adhesion receptors, are characterized by the presence of large N-terminal extracellular domains containing multiple adhesion motifs, which play critical roles in cell-cell adhesion and cell-matrix interactions, that are coupled to a class B seven-transmembrane domain. For example, BAI1 N-terminus contain an integrin-binding RGD (Arg-Gly-Asp) motif in addition to five thrombospondin type 1 repeats (TSRs), which are known to regulate the anti-angiogenic activity of thrombospondin-1, whereas BAI2 and BAI3 have four TSRs, but do not possess RGD motifs. The TSRs are functionally involved in cell attachment, activation of latent TGF-beta, inhibition of angiogenesis and endothelial cell migration. The TSRs of BAI1 mediates direct binding to phosphatidylserine, which enables both recognition and internalization of apoptotic cells by phagocytes. Thus, BAI1 functions as a phosphatidylserine receptor that forms a trimeric complex with ELMO and Dock180, leading to activation of Rac-GTPase which promotes the binding and phagocytosis of apoptotic cells. BAI3 can also interact with the ELMO-Dock180 complex to activate the Rac pathway and can also bind to secreted C1ql proteins of the C1Q complement family via its N-terminal TSRs. BAI3 and its ligands C1QL1 are highly expressed during synaptogenesis and are involved in synapse specificity. Moreover, BAI2 acts as a transcription repressor to regulate vascular endothelial growth factor (VEGF) expression through interaction with GA-binding protein gamma (GABP). The N-terminal extracellular domains of all three BAIs also contain an evolutionarily conserved GPCR-autoproteolysis inducing (GAIN) domain, which undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif to generate N- and C-terminal fragments (NTF and CTF), a putative hormone-binding domain (HBD), and multiple N-glycosylation sites. The C-terminus of each BAI subtype ends with a conserved Gln-Thr-Glu-Val (QTEV) motif known to interact with PDZ domain-containing proteins, but only BAI1 possesses a proline-rich region, which may be involved in protein-protein interactions.


Pssm-ID: 320656  Cd Length: 267  Bit Score: 108.92  E-value: 3.22e-26
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 541 VGCSLSVLCLAATLVTFavLSSVSTIRNQRYHIHANLSFAVLVAQVLLLISFSMEPGTVPCQVLAVLLHYFFLTAFAWML 620
Cdd:cd15990    13 VGCGVSSLTLLLLIIIY--VSVWRYIRSERSVILINFCLSIISSNALILIGQTQTRNKVVCTLVAAFLHFFFLSSFCWVL 90
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 621 VEGLHLYSMVIKVFGSEDSKHlYYYGIGWGCP-LLICIISISSSMDSYGTSDSCWLALGSGAIWAFVGPALLVIVVNIVI 699
Cdd:cd15990    91 TEAWQSYMAVTGRLRNRIIRK-RFLCLGWGLPaLVVAISVGFTKAKGYGTVNYCWLSLEGGLLYAFVGPAAAVVLVNMVI 169
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 700 -LVAVTRVISHISTDSYKIHGDPSAfklTAKAVAVLLPILGTSWVFGVLAVSD-RALVFQYMFAILNSLQGLFIFLFHCL 777
Cdd:cd15990   170 gILVFNKLVSKDGITDKKLKERAGA---SLWSSCVVLPLLALTWMSAVLAITDrRSALFQILFAVFDSLEGFVIVMVHCI 246
                         250
                  ....*....|
gi 1907163470 778 LNSEVRAAFK 787
Cdd:cd15990   247 LRREVQDAVK 256
7tmB2_GPR126 cd15996
orphan adhesion receptor GPR126, member of the class B2 family of seven-transmembrane G ...
535-787 3.81e-26

orphan adhesion receptor GPR126, member of the class B2 family of seven-transmembrane G protein-coupled receptors; GPR126 is an orphan receptor that has been classified as that belongs to the Group VIII of adhesion GPCRs. Other members of the Group VII include orphan GPCRs such as GPR56, GPR64, GPR97, GPR112, and GPR114. GPR126 is required in Schwann cells for proper differentiation and myelination via G-Protein Activation. GPR126 is believed to couple to G(s)-protein, which leads to activation of adenylate cyclase for cAMP production. The adhesion receptors are characterized by the presence of large N-terminal extracellular domains containing multiple adhesion motifs, which play critical roles in cell-cell adhesion and cell-matrix interactions, that are coupled to a class B seven-transmembrane domain. Furthermore, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR- autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions.


Pssm-ID: 320662  Cd Length: 271  Bit Score: 108.82  E-value: 3.81e-26
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 535 LSSISYVGCSLSVLCLAATLVTFAVLSSVStiRNQRYHIHANLSFAVLVAQVLLLI-----SFSMEPgtvPCQVLAVLLH 609
Cdd:cd15996     4 LTFITYIGCGISAIFSAATLLTYIAFEKLR--RDYPSKILMNLSTALLFLNLVFLLdgwiaSFEIDE---LCITVAVLLH 78
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 610 YFFLTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGI-GWGCPLLICIISISSSMDSY------------GTSDSCWL- 675
Cdd:cd15996    79 FFLLATFTWMGLEAIHMYIALVKVFNTYIRRYILKFCIiGWGLPALIVSIVLASTNDNYgygyygkdkdgqGGDEFCWIk 158
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 676 --------ALGSGAIWAFVGPALLVIVVNIVILVAVTRVISHISTDSYKihgdpsafklTAKAVAVLLPILGTSWVFGVL 747
Cdd:cd15996   159 npvvfyvtCAAYFGIMFLMNVAMFIVVMVQICGRNGKRSNRTLREEILR----------NLRSVVSLTFLLGMTWGFAFF 228
                         250       260       270       280
                  ....*....|....*....|....*....|....*....|
gi 1907163470 748 AVSDRALVFQYMFAILNSLQGLFIFLFHCLLNSEVRAAFK 787
Cdd:cd15996   229 AWGPVNLAFMYLFTIFNSLQGLFIFVFHCALKENVQKQWR 268
7tmB2_GPR113 cd15253
orphan adhesion receptor GPR113, member of the class B2 family of seven-transmembrane G ...
534-789 8.03e-26

orphan adhesion receptor GPR113, member of the class B2 family of seven-transmembrane G protein-coupled receptors; GPR113 is an orphan receptor that belongs to group VI adhesion-GPCRs along with GPR110, GPR111, GPR115, and GPR116. The adhesion receptors are characterized by the presence of large N-terminal extracellular domains containing multiple adhesion motifs, which play critical roles in ligand recognition as well as cell-cell adhesion and cell-matrix interactions, linked by a stalk region to a class B seven-transmembrane domain. GPR113 contains a hormone binding domain and one EGF (epidermal grown factor) domain, and is primarily expressed in a subset of taste receptor cells. In addition, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR-autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions. However, several adhesion GPCRs, including GPR 111, GPR115, and CELSR1, are predicted to be non-cleavable at the GAIN domain because of the lack of a consensus catalytic triad sequence (His-Leu-Ser/Thr) within their GPS.


Pssm-ID: 320381 [Multi-domain]  Cd Length: 271  Bit Score: 107.92  E-value: 8.03e-26
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 534 ALSSISYVGCSLSVLCLAATLVTF-AVLSSVstIRNQ----RYHIHANLSFAVLVAQVLLLISFSMEPG--TVPCQVLAV 606
Cdd:cd15253     3 WLDFLSQVGLGASILALLLCLGIYrLVWRSV--VRNKisyfRHMTLVNIAFSLLLADTCFLGATFLSAGheSPLCLAAAF 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 607 LLHYFFLTAFAWMLVEGLHLYSMVIKVFgSEDSKHLY---YYGIGWGCPLLICIISISSSM--DSYGTSDSCWLALGSGA 681
Cdd:cd15253    81 LCHFFYLATFFWMLVQALMLFHQLLFVF-HQLAKRSVlplMVTLGYLCPLLIAAATVAYYYpkRQYLHEGACWLNGESGA 159
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 682 IWAFVGPALLVIVVNIVILVAVTRVISHISTDSYKIHGDPSAFKLTAKAVAVLLPILGTSWVFGVLAVSDRAL-VFQYMF 760
Cdd:cd15253   160 IYAFSIPVLAIVLVNLLVLFVVLMKLMRPSVSEGPPPEERKALLSIFKALLVLTPVFGLTWGLGVATLTGESSqVSHYGF 239
                         250       260
                  ....*....|....*....|....*....
gi 1907163470 761 AILNSLQGLFIFLFHCLLNSEVRAAFKHK 789
Cdd:cd15253   240 AILNAFQGVFILLFGCLMDKKVREALLKR 268
7tmB2_GPR64 cd15444
orphan adhesion receptor GPR64 and related proteins, member of subfamily B2 of the class B ...
533-787 8.66e-25

orphan adhesion receptor GPR64 and related proteins, member of subfamily B2 of the class B secretin-like receptors of seven-transmembrane G protein-coupled receptors; GPR64 is an orphan receptor that has been classified as that belongs to the Group VIII of adhesion GPCRs. Other members of the Group VII include orphan GPCRs such as GPR56, GPR97, GPR112, GPR114, and GPR126. GPR64 is mainly expressed in the epididymis of male reproductive tract, and targeted deletion of GPR64 causes sperm stasis and efferent duct blockage due to abnormal fluid reabsorption, resulting in male infertility. GPR64 is also over-expressed in Ewing's sarcoma (ES), as well as upregulated in other carcinomas from kidney, prostate or lung, and promotes invasiveness and metastasis in ES via the upregulation of placental growth factor (PGF) and matrix metalloproteinase (MMP) 1. The adhesion receptors are characterized by the presence of large N-terminal extracellular domains containing multiple adhesion motifs, which play critical roles in cell-cell adhesion and cell-matrix interactions, that are coupled to a class B seven-transmembrane domain. Furthermore, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR- autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions.


Pssm-ID: 320560 [Multi-domain]  Cd Length: 271  Bit Score: 104.91  E-value: 8.66e-25
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 533 VALSSISYVGCSLSVLCLAATLVTFAVLSSVStiRNQRYHIHANLSFAVLVAQVLLLIS-----FSMEPGTvpCQVLAVL 607
Cdd:cd15444     2 LILTFITYIGCGLSAIFLSVTLVTYIAFEKIR--RDYPSKILIQLCVALLLLNLVFLLDswialYKDIVGL--CISVAVF 77
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 608 LHYFFLTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGI-GWGCPLLICIISISSSMDSYG-----------TSDSCWL 675
Cdd:cd15444    78 LHYFLLVSFTWMGLEAFHMYLALVKVFNTYIRKYILKFCIvGWGVPAVVVAIVLAVSKDNYGlgsygkspngsTDDFCWI 157
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 676 AlgSGAIWAFVGPALLVIVVNIVILVAVTRVISHISTDSYKIHGDPSAFKLT-AKAVAVLLPILGTSWVFGVLAVSDRAL 754
Cdd:cd15444   158 N--NNIVFYITVVGYFCVIFLLNISMFIVVLVQLCRIKKQKQLGAQRKTSLQdLRSVAGITFLLGITWGFAFFAWGPVNL 235
                         250       260       270
                  ....*....|....*....|....*....|...
gi 1907163470 755 VFQYMFAILNSLQGLFIFLFHCLLNSEVRAAFK 787
Cdd:cd15444   236 AFMYLFAIFNTLQGFFIFIFYCVAKENVRKQWR 268
7tmB2_BAI3 cd15989
brain-specific angiogenesis inhibitor 3, a group VII adhesion GPCR, member of the class B2 ...
541-787 2.27e-22

brain-specific angiogenesis inhibitor 3, a group VII adhesion GPCR, member of the class B2 family of seven-transmembrane G protein-coupled receptors; Brain-specific angiogenesis inhibitors (BAI1-3) constitute the group VII of cell-adhesion receptors that have been implicated in vascularization of glioblastomas. They belong to the B2 subfamily of class B GPCRs, are predominantly expressed in the brain, and are only present in vertebrates. Three BAIs, like all adhesion receptors, are characterized by the presence of large N-terminal extracellular domains containing multiple adhesion motifs, which play critical roles in cell-cell adhesion and cell-matrix interactions, that are coupled to a class B seven-transmembrane domain. For example, BAI1 N-terminus contain an integrin-binding RGD (Arg-Gly-Asp) motif in addition to five thrombospondin type 1 repeats (TSRs), which are known to regulate the anti-angiogenic activity of thrombospondin-1, whereas BAI2 and BAI3 have four TSRs, but do not possess RGD motifs. The TSRs are functionally involved in cell attachment, activation of latent TGF-beta, inhibition of angiogenesis and endothelial cell migration. The TSRs of BAI1 mediates direct binding to phosphatidylserine, which enables both recognition and internalization of apoptotic cells by phagocytes. Thus, BAI1 functions as a phosphatidylserine receptor that forms a trimeric complex with ELMO and Dock180, leading to activation of Rac-GTPase which promotes the binding and phagocytosis of apoptotic cells. BAI3 can also interact with the ELMO-Dock180 complex to activate the Rac pathway and can also bind to secreted C1ql proteins of the C1Q complement family via its N-terminal TSRs. BAI3 and its ligands C1QL1 are highly expressed during synaptogenesis and are involved in synapse specificity. Moreover, BAI2 acts as a transcription repressor to regulate vascular endothelial growth factor (VEGF) expression through interaction with GA-binding protein gamma (GABP). The N-terminal extracellular domains of all three BAIs also contain an evolutionarily conserved GPCR-autoproteolysis inducing (GAIN) domain, which undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif to generate N- and C-terminal fragments (NTF and CTF), a putative hormone-binding domain (HBD), and multiple N-glycosylation sites. The C-terminus of each BAI subtype ends with a conserved Gln-Thr-Glu-Val (QTEV) motif known to interact with PDZ domain-containing proteins, but only BAI1 possesses a proline-rich region, which may be involved in protein-protein interactions.


Pssm-ID: 320655 [Multi-domain]  Cd Length: 293  Bit Score: 98.22  E-value: 2.27e-22
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 541 VGCSLSVLCLAATLVTFAVLSSVstIRNQRYHIHANLSFAVLVAQVLLLISFSMEPGTVPCQVLAVLLHYFFLTAFAWML 620
Cdd:cd15989    12 VGCGLSCLALITLAVVYAALWRY--IRSERSIILINFCLSIISSNILILVGQTQTHNKGICTMTTAFLHFFFLASFCWVL 89
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 621 VEGLHLYSMVIKVFGSEDSKHlYYYGIGWGCP-LLICIISISSSMDSYGTSDSCWLALGSGAIWAFVGPALLVIVVNIVI 699
Cdd:cd15989    90 TEAWQSYMAVTGKIRTRLIRK-RFLCLGWGLPaLVVAISMGFTKAKGYGTPHYCWLSLEGGLLYAFVGPAAAVVLVNMVI 168
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 700 LVAV-----------TRVISHISTDSYKIH----------GDPSAFKLTAKAVA----------VLLPILGTSWVFGVLA 748
Cdd:cd15989   169 GILVfnklvsrdgilDKKLKHRAGQMSEPHsgltlkcakcGVVSTTALSATTASnamaslwsscVVLPLLALTWMSAVLA 248
                         250       260       270       280
                  ....*....|....*....|....*....|....*....|
gi 1907163470 749 VSD-RALVFQYMFAILNSLQGLFIFLFHCLLNSEVRAAFK 787
Cdd:cd15989   249 MTDkRSILFQILFAVFDSLQGFVIVMVHCILRREVQDAFR 288
7tmB1_NPR_B4_insect-like cd15260
insect neuropeptide receptor subgroup B4 and related proteins, member of the class B family of ...
537-789 5.78e-22

insect neuropeptide receptor subgroup B4 and related proteins, member of the class B family of seven-transmembrane G protein-coupled receptors; This subgroup includes a neuropeptide receptor found in Nilaparvata lugens (brown planthopper) and its closely related proteins from mollusks and annelid worms. They belong to the B1 subfamily of class B GPCRs, also referred to as secretin-like receptor family, which includes receptors for polypeptide hormones of 27-141 amino-acid residues such as secretin, glucagon, glucagon-like peptide (GLP), calcitonin gene-related peptide, parathyroid hormone (PTH), and corticotropin-releasing factor. These receptors contain the large N-terminal extracellular domain (ECD), which plays a critical role in hormone recognition by binding to the C-terminal portion of the peptide. On the other hand, the N-terminal segment of the hormone induces receptor activation by interacting with the receptor transmembrane domains and connecting extracellular loops, triggering intracellular signaling pathways. All members of the B1 subfamily preferentially couple to G proteins of G(s) family, which positively stimulate adenylate cyclase, leading to increased intracellular cAMP formation and calcium influx. The class B GPCRs have been identified in all the vertebrates, from fishes to mammals, as well as invertebrates including Caenorhabditis elegans and Drosophila melanogaster, but are not present in plants, fungi, or prokaryotes.


Pssm-ID: 320388 [Multi-domain]  Cd Length: 267  Bit Score: 96.57  E-value: 5.78e-22
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 537 SISYVGCSLSvlcLAATLVTFAVLSSVSTIRNQRYHIHANLSFAVLVAQVLLLISFS---MEPGTVP-----CQVLAVLL 608
Cdd:cd15260     6 YVYIGGYSVS---LIALIISLAIFFSFRSLRCTRITIHMNLFISFALNNLLWIVWYKlvvDNPEVLLenpiwCQALHVLL 82
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 609 HYFFLTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICIISISSSMDSYGTSDSCWLAlGSGAIWAFVGP 688
Cdd:cd15260    83 QYFMVCNYFWMFCEGLYLHTVLVVAFISEKSLMRWFIAIGWGVPLVITAIYAGVRASLPDDTERCWME-ESSYQWILIVP 161
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 689 ALLVIVVNIVILVAVTRVISHI--STDSykiHGDPSAFKLTAKAVAVLLPILGTSWVFGVLAVSDRA---LVFQYMFAIL 763
Cdd:cd15260   162 VVLSLLINLIFLINIVRVLLTKlrATSP---NPAPAGLRKAVRATLILIPLLGLQFLLIPFRPEPGApleTIYQYVSALL 238
                         250       260
                  ....*....|....*....|....*.
gi 1907163470 764 NSLQGLFIFLFHCLLNSEVRAAFKHK 789
Cdd:cd15260   239 TSLQGLCVAVLFCFCNGEVIAAIKRK 264
7tmB2_GPR114 cd15443
orphan adhesion receptor GPR114, member of the class B2 family of seven-transmembrane G ...
535-790 1.25e-21

orphan adhesion receptor GPR114, member of the class B2 family of seven-transmembrane G protein-coupled receptors; GPR114 is an orphan receptor that has been classified as that belongs to the Group VIII of adhesion GPCRs. Other members of the Group VII include GPR56, GPR64, GPR97, GPR112, and GPR126. GPR114 is mainly found in granulocytes (polymorphonuclear leukocytes), and GPR114-transfected cells induced an increase in cAMP levels via coupling to G(s) protein. The adhesion receptors are characterized by the presence of large N-terminal extracellular domains containing multiple adhesion motifs, which play critical roles in cell-cell adhesion and cell-matrix interactions, that are coupled to a class B seven-transmembrane domain. Furthermore, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR- autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions.


Pssm-ID: 320559 [Multi-domain]  Cd Length: 268  Bit Score: 95.59  E-value: 1.25e-21
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 535 LSSISYVGCSLSVlclAATLVTfAVLSSVSTIRNQRY--HIHANLSFAVLVAQVLLLIS--FSMEPGTVPCQVLAVLLHY 610
Cdd:cd15443     4 LTYISIVGCSISA---AASLLT-ILLHFFSRKQPKDSttRIHMNLLGSLFLLNGSFLLSppLATSQSTWLCRAAAALLHY 79
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 611 FFLTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYG-IGWGCPLLICIISISSSMDSYG-----------TSDSCWLALG 678
Cdd:cd15443    80 SLLCCLTWMAIEGFHLYLLLVKVYNIYIRRYVLKLCvLGWGLPALIVLLVLIFKREAYGphtiptgtgyqNASMCWITSS 159
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 679 SGAIWAFVGPALLVIVVNIVILVAVTRVISHISTDSYKIHGDPSAFKLTAKAVAVLlpiLGTSWV-----FGVLavsdra 753
Cdd:cd15443   160 KVHYVLVLGYAGLTSLFNLVVLAWVVRMLRRLRSRKQELGERARRDWVTVLGLTCL---LGTTWAlaffsFGVF------ 230
                         250       260       270
                  ....*....|....*....|....*....|....*...
gi 1907163470 754 LVFQ-YMFAILNSLQGLFIFLFHCLLNSEVRAAFKHKT 790
Cdd:cd15443   231 LIPQlFLFTIINSLYGFFICLWYCTQRRRSDASAKSST 268
7tmB2_GPR111_115 cd15994
orphan adhesion receptors GPR111 and GPR115, member of the class B2 family of ...
535-787 4.56e-21

orphan adhesion receptors GPR111 and GPR115, member of the class B2 family of seven-transmembrane G protein-coupled receptors; GPR111 and GPR115 are highly homologous orphan receptors that belong to group VI adhesion-GPCRs along with GPR110, GPR113, and GPR116. The adhesion receptors are characterized by the presence of large N-terminal extracellular domains containing multiple adhesion motifs, which play critical roles in ligand recognition as well as cell-cell adhesion and cell-matrix interactions, linked by a stalk region to a class B seven-transmembrane domain. In addition, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR-autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions. However, several adhesion GPCRs, including GPR 111, GPR115, and CELSR1, are predicted to be non-cleavable at the GAIN domain because of the lack of a consensus catalytic triad sequence (His-Leu-Ser/Thr) within their GPS. Both GPR111 and GPR5 are present only in land-living animals and are predominantly expressed in the developing skin.


Pssm-ID: 320660 [Multi-domain]  Cd Length: 267  Bit Score: 93.75  E-value: 4.56e-21
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 535 LSSISYVGCSLSVLCLAATLVTFAVLSSVSTIRNQRYHIH---ANLSFAVLVAQVLLLIS--FSMEPGTVP-CQVLAVLL 608
Cdd:cd15994     4 LDYITRIGLGLSIFSLALCLTIEAVVWSHVTKTEITYMRHvciVNIATSLLIADVWFILAsiVHNTALNYPlCVAATFFL 83
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 609 HYFFLTAFAWMLVEGLH-LYSMVIKVFGSEDSKHLYY-YGIGWGCPLLICIISISSS--MDSYGTSDSCWLAL-GSGAIW 683
Cdd:cd15994    84 HFFYLSLFFWMLTKALLiLYGILLVFFKITKSVFIATaFSIGYGCPLVIAVLTVAITepKKGYLRPEACWLNWdETKALL 163
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 684 AFVGPALLVIVVNIVILVAVTRVISHISTDSYKIHgDPSAFKLTAKAVAVLLPILGTSWVFGVLA-VSDRALVFQYMFAI 762
Cdd:cd15994   164 AFIIPALSIVVVNLIVVGVVVVKTQRSSIGESCKQ-DVSNIIRISKNVAILTPLLGLTWGFGLATiIDSRSLPFHIIFAL 242
                         250       260
                  ....*....|....*....|....*
gi 1907163470 763 LNSLQGLFIFLFHCLLNSEVRAAFK 787
Cdd:cd15994   243 LNAFQGFFILLFGTILDRKIRIALY 267
7tmB1_CRF-R1 cd15445
corticotropin-releasing factor receptor 1, member of the class B family of seven-transmembrane ...
538-789 1.88e-20

corticotropin-releasing factor receptor 1, member of the class B family of seven-transmembrane G protein-coupled receptors; The vertebrate corticotropin-releasing factor (CRF) receptors are predominantly expressed in central nervous system with high levels in cortex tissue, brain stem, and pituitary. They have two isoforms as a result of alternative splicing of the same receptor gene: CRF-R1 and CRF-R2, which differ in tissue distribution and ligand binding affinities. Recently, a third CRF receptor (CRF-R3) has been identified in catfish pituitary. The catfish CRF-R1 is highly homologous to CRF-R3. CRF is a 41-amino acid neuropeptide that plays a central role in coordinating neuroendocrine, behavioral, and autonomic responses to stress by acting as the primary neuroregulator of the hypothalamic-pituitary-adrenal axis, which controls the levels of cortisol and other stress related hormones. In addition, the CRF family of neuropeptides also includes structurally related peptides such as mammalian urocortin, fish urotensin I, and frog sauvagine. The actions of CRF and CRF-related peptides are mediated through specific binding to CRF-R1 and CRF-R2. CRF and urocortin 1 bind and activate mammalian CRF-R1 with similar high affinities. By contrast, urocortin 2 and urocortin 3 do not bind to CRF-R1 or stimulate CRF-R1-mediated cAMP formation. Urocortin 1 also shows high affinity for mammalian CRF-R2, whereas CRF has significantly lower affinity for this receptor. These evidence suggest that urocortin 1 is an endogenous ligand for CRF-R1 and CRF-R2. The CRF receptors are members of the B1 subfamily of class B GPCRs, also referred to as secretin-like receptor family, which includes receptors for polypeptide hormones of 27-141 amino-acid residues such as secretin, glucagon, glucagon-like peptide (GLP), calcitonin gene-related peptide, and parathyroid hormone (PTH). These receptors contain the large N-terminal extracellular domain (ECD), which plays a critical role in hormone recognition by binding to the C-terminal portion of the peptide. On the other hand, the N-terminal segment of the hormone induces receptor activation by interacting with the receptor transmembrane domains and connecting extracellular loops, triggering intracellular signaling pathways. All members of the B1 subfamily preferentially couple to G proteins of G(s) family, which positively stimulate adenylate cyclase, leading to increased intracellular cAMP formation and calcium influx. However, depending on its cellular location and function, CRF receptors can activate multiple G proteins, which can in turn stimulate different second messenger pathways.


Pssm-ID: 320561 [Multi-domain]  Cd Length: 265  Bit Score: 91.92  E-value: 1.88e-20
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 538 ISYVGCSLSVLCLAATLVTFAVLSSVSTIRNQryhIHANLSFAVLVAQVL-LLISFSMEP-----GTVPCQVLAVLLHYF 611
Cdd:cd15445     7 INYLGHCISLVALLVAFVLFLRLRSIRCLRNI---IHWNLITAFILRNATwFVVQLTMSPevhqsNVVWCRLVTAAYNYF 83
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 612 FLTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICIISISSSMdsYGTSDSCWLALGSGAIWAFV--GPA 689
Cdd:cd15445    84 HVTNFFWMFGEGCYLHTAIVLTYSTDKLRKWMFICIGWCIPFPIIVAWAIGKL--YYDNEKCWFGKRAGVYTDYIyqGPM 161
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 690 LLVIVVNIVILVAVTRVIS---HISTDSYKIHgdpsaFKLTAKAVAVLLPILGTSW-VFGVLAVSDRA--LVFQYMFAIL 763
Cdd:cd15445   162 ILVLLINFIFLFNIVRILMtklRASTTSETIQ-----YRKAVKATLVLLPLLGITYmLFFVNPGEDEIsrIVFIYFNSFL 236
                         250       260
                  ....*....|....*....|....*.
gi 1907163470 764 NSLQGLFIFLFHCLLNSEVRAAFKHK 789
Cdd:cd15445   237 ESFQGFFVSVFYCFLNSEVRSAVRKR 262
7tmB1_GlucagonR-like cd15929
glucagon receptor-like subfamily, member of the class B family of seven-transmembrane G ...
541-789 2.74e-19

glucagon receptor-like subfamily, member of the class B family of seven-transmembrane G protein-coupled receptors; This group represents the glucagon receptor family of G protein-coupled receptors, which includes glucagon receptor (GCGR), glucagon-like peptide-1 receptor (GLP1R), GLP2R, and closely related receptors. These receptors are activated by the members of the glucagon (GCG) peptide family including GCG, glucagon-like peptide 1 (GLP1), and GLP2, which are derived from the large proglucagon precursor. GCGR regulates blood glucose levels by control of hepatic glycogenolysis and gluconeogenesis and by regulation of insulin secretion from the pancreatic beta-cells. Activation of GLP1R stimulates glucose-dependent insulin secretion from pancreatic beta cells, whereas activation of GLP2R stimulates intestinal epithelial proliferation and increases villus height in the small intestine. Receptors in this group belong to the B1 (or secretin-like) subfamily of class B GPCRs, which includes receptors for polypeptide hormones of 27-141 amino-acid residues such as secretin, calcitonin gene-related peptide, parathyroid hormone (PTH), and corticotropin-releasing factor. These receptors contain the large N-terminal extracellular domain (ECD), which plays a critical role in hormone recognition by binding to the C-terminal portion of the peptide. On the other hand, the N-terminal segment of the hormone induces receptor activation by interacting with the receptor transmembrane domains and connecting extracellular loops, triggering intracellular signaling pathways. All members of the B1 subfamily preferentially couple to G proteins of G(s) family, which positively stimulate adenylate cyclase, leading to increased intracellular cAMP formation and calcium influx. However, depending on their cellular location, GCGR and GLP receptors can activate multiple G proteins, which can in turn stimulate different second messenger pathways.


Pssm-ID: 341353 [Multi-domain]  Cd Length: 279  Bit Score: 89.03  E-value: 2.74e-19
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 541 VGCSLSvlcLAATLVTFAVLSSVSTIRNQRYHIHANL--SF-----AVLVAQVLLLISFSMEPG------------TVPC 601
Cdd:cd15929    10 VGYSLS---LAALVLALAILLGLRKLHCTRNYIHANLfaSFilralSVLVKDALLPRRYSQKGDqdlwstllsnqaSLGC 86
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 602 QVLAVLLHYFFLTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICIISISSsmdSYGTSDS-CWLALGSG 680
Cdd:cd15929    87 RVAQVLMQYCVAANYYWLLVEGLYLHTLLVLAVFSERSIFRLYLLLGWGAPVLFVVPWGIV---KYLYENTgCWTRNDNM 163
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 681 AIWAFV-GPALLVIVVNIVILVAVTRVISHISTDSYKIHGDpSAFKLtAKAVAVLLPILGTSWVFGVLAVSDRA---LVF 756
Cdd:cd15929   164 AYWWIIrLPILLAILINFFIFVRILKILVSKLRANQMCKTD-YKFRL-AKSTLTLIPLLGVHEVVFAFVTDEQArgtLRF 241
                         250       260       270
                  ....*....|....*....|....*....|....*
gi 1907163470 757 QYMFA--ILNSLQGLFIFLFHCLLNSEVRAAFKHK 789
Cdd:cd15929   242 IKLFFelFLSSFQGLLVAVLYCFANKEVQSELRKK 276
7tmB1_CRF-R2 cd15446
corticotropin-releasing factor receptor 2, member of the class B family of seven-transmembrane ...
538-789 3.92e-19

corticotropin-releasing factor receptor 2, member of the class B family of seven-transmembrane G protein-coupled receptors; The vertebrate corticotropin-releasing factor (CRF) receptors are predominantly expressed in central nervous system with high levels in cortex tissue, brain stem, and pituitary. They have two isoforms as a result of alternative splicing of the same receptor gene: CRF-R1 and CRF-R2, which differ in tissue distribution and ligand binding affinities. Recently, a third CRF receptor (CRF-R3) has been identified in catfish pituitary. The catfish CRF-R1 is highly homologous to CRF-R3. CRF is a 41-amino acid neuropeptide that plays a central role in coordinating neuroendocrine, behavioral, and autonomic responses to stress by acting as the primary neuroregulator of the hypothalamic-pituitary-adrenal axis, which controls the levels of cortisol and other stress related hormones. In addition, the CRF family of neuropeptides also includes structurally related peptides such as mammalian urocortin, fish urotensin I, and frog sauvagine. The actions of CRF and CRF-related peptides are mediated through specific binding to CRF-R1 and CRF-R2. CRF and urocortin 1 bind and activate mammalian CRF-R1 with similar high affinities. By contrast, urocortin 2 and urocortin 3 do not bind to CRF-R1 or stimulate CRF-R1-mediated cAMP formation. Urocortin 1 also shows high affinity for mammalian CRF-R2, whereas CRF has significantly lower affinity for this receptor. These evidence suggest that urocortin 1 is an endogenous ligand for CRF-R1 and CRF-R2. The CRF receptors are members of the B1 subfamily of class B GPCRs, also referred to as secretin-like receptor family, which includes receptors for polypeptide hormones of 27-141 amino-acid residues such as secretin, glucagon, glucagon-like peptide (GLP), calcitonin gene-related peptide, and parathyroid hormone (PTH). These receptors contain the large N-terminal extracellular domain (ECD), which plays a critical role in hormone recognition by binding to the C-terminal portion of the peptide. On the other hand, the N-terminal segment of the hormone induces receptor activation by interacting with the receptor transmembrane domains and connecting extracellular loops, triggering intracellular signaling pathways. All members of the B1 subfamily preferentially couple to G proteins of G(s) family, which positively stimulate adenylate cyclase, leading to increased intracellular cAMP formation and calcium influx. However, depending on its cellular location and function, CRF receptors can activate multiple G proteins, which can in turn stimulate different second messenger pathways.


Pssm-ID: 320562 [Multi-domain]  Cd Length: 264  Bit Score: 88.09  E-value: 3.92e-19
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 538 ISYVGCSLSVLCLAATLVTFAVLSSVSTIRNQryhIHANLSFAVLVAQV----LLLISFSM-EPGTVPCQVLAVLLHYFF 612
Cdd:cd15446     7 INYLGHCISVGALVVAFLLFLCLRSIRCLRNI---IHWNLITTFILRNVmwflLQMIDHNIhESNEVWCRCITTIYNYFV 83
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 613 LTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICIISISSSMdsYGTSDSCWLALGSGAI--WAFVGPAL 690
Cdd:cd15446    84 VTNFFWMFVEGCYLHTAIVMTYSTDKLRKWVFLFIGWCIPCPIIVAWAIGKL--YYENEQCWFGKEPGKYidYIYQGPVI 161
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 691 LVIVVNIVILVAVTRVIS---HISTDSYKIHgdpsaFKLTAKAVAVLLPILGTSW-VFGVLAVSD--RALVFQYMFAILN 764
Cdd:cd15446   162 LVLLINFVFLFNIVRILMtklRASTTSETIQ-----YRKAVKATLVLLPLLGITYmLFFVNPGEDdiSQIVFIYFNSFLQ 236
                         250       260
                  ....*....|....*....|....*
gi 1907163470 765 SLQGLFIFLFHCLLNSEVRAAFKHK 789
Cdd:cd15446   237 SFQGFFVSVFYCFLNGEVRSAARKR 261
7tmB1_PDFR cd15261
The pigment dispersing factor receptor, member of the class B seven-transmembrane G ...
538-787 1.02e-18

The pigment dispersing factor receptor, member of the class B seven-transmembrane G protein-coupled receptors; The pigment dispersing factor receptor (PDFR) is a G protein-coupled receptor that binds the circadian clock neuropeptide PDF, a functional ortholog of the mammalian vasoactive intestinal peptide (VIP), on the pacemaker neurons. The PDFR is implicated in regulating flight circuit development and in modulating acute flight In Drosophila melanogaster. The PDFR activation stimulates adenylate cyclase, thereby increasing cAMP levels in many different pacemakers, and the receptor signaling has been shown to regulate behavioral circadian rhythms and geotaxis in Drosophila. The PDFR belongs to the B1 subfamily of class B GPCRs, also referred to as secretin-like receptor family, which includes receptors for polypeptide hormones of 27-141 amino-acid residues such as secretin, glucagon, glucagon-like peptide (GLP), calcitonin gene-related peptide, parathyroid hormone (PTH), and corticotropin-releasing factor. . These receptors contain the large N-terminal extracellular domain (ECD), which plays a critical role in hormone recognition by binding to the C-terminal portion of the peptide. On the other hand, the N-terminal segment of the hormone induces receptor activation by interacting with the receptor transmembrane domains and connecting extracellular loops, triggering intracellular signaling pathways. All members of the B1 subfamily preferentially couple to G proteins of G(s) family, which positively stimulate adenylate cyclase, leading to increased intracellular cAMP formation and calcium influx. They play key roles in hormone homeostasis in mammals and are promising drug targets in various human diseases including diabetes, osteoporosis, obesity, neurodegenerative conditions (Alzheimer###s and Parkinson's), cardiovascular disease, migraine, and psychiatric disorders (anxiety, depression).


Pssm-ID: 320389 [Multi-domain]  Cd Length: 282  Bit Score: 87.42  E-value: 1.02e-18
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 538 ISYVGCSLSVLCLAATLVTFAVLSSVstiRNQRYHIHANLSFAVLVAQVLLLISF-------SMEPGT------------ 598
Cdd:cd15261     7 LEIVGLCLSLVSLIISLFIFSYFRTL---RNHRTRIHKNLFLAILLQVIIRLVLYidqaitrSRGSHTnaattegrtins 83
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 599 --VPCQVLAVLLHYFFLTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICIISISSSMDSYGTSDsCWLA 676
Cdd:cd15261    84 tpILCEGFYVLLEYAKTVMFMWMFIEGLYLHNIIVVSVFSGKPNYLFYYILGWGIPIVHTSAWAIVTLIKMKVNR-CWFG 162
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 677 LG-SGAIWAFVGPALLVIVVNIVILVAVTRVISHISTDSYKihgdPSAFKL--TAKAVAVLLPILG-TSWVFGVLAVSDR 752
Cdd:cd15261   163 YYlTPYYWILEGPRLAVILINLFFLLNIIRVLVSKLRESHS----REIEQVrkAVKAAIVLLPLLGiTNILQMIPPPLTS 238
                         250       260       270
                  ....*....|....*....|....*....|....*....
gi 1907163470 753 AL----VFQYMFAILNSLQGLFIFLFHCLLNSEVRAAFK 787
Cdd:cd15261   239 VIvgfaVWSYSTHFLTSFQGFFVALIYCFLNGEVKNVLK 277
7tmB1_calcitonin_R cd15274
calcitonin receptor, member of the class B family of seven-transmembrane G protein-coupled ...
534-787 1.45e-17

calcitonin receptor, member of the class B family of seven-transmembrane G protein-coupled receptors; This group includes G protein-coupled receptors for calcitonin (CT) and calcitonin gene-related peptides (CGRPs). Calcitonin, a 32-amino acid peptide hormone, is involved in calcium metabolism in many mammalian species and acts to reduce blood calcium levels and directly inhibits bone resorption by acting on osteoclast. Thus, CT acts as an antagonist to parathyroid hormone and is commonly used in the treatment of bone disorders. The CT receptor is predominantly found in osteoclasts, kidney, and brain, and is primarily coupled to stimulatory G(s) protein, which leads to activation of adenylate cyclase, thereby increasing cAMP production. CGRP, a member of the calcitonin family of peptides, is a potent vasodilator and may contribute to migraine. It is expressed in the peripheral and central nervous system and exists in two forms in humans (alpha-CGRP and beta-CGRP). CGRP meditates its physiological effects through calcitonin receptor-like receptor (CRLR) and receptor activity-modifying protein 1 (RAMP1), a single transmembrane domain protein. Thus, the CRLR/RAMP1 complex serves as a functional CGRP receptor. On the other hand, the CRLR/RAMP2 and CRLR/RAMP3 complexes function as adrenomedullin-specific receptors. The CT and CGRP receptors belong to the B1 subfamily of class B GPCRs, also referred to as secretin-like receptor family, which includes receptors for polypeptide hormones of 27-141 amino-acid residues such as secretin, glucagon, glucagon-like peptide (GLP), parathyroid hormone (PTH), and corticotropin-releasing factor. These receptors contain the large N-terminal extracellular domain (ECD), which plays a critical role in hormone recognition by binding to the C-terminal portion of the peptide.


Pssm-ID: 341343 [Multi-domain]  Cd Length: 274  Bit Score: 83.67  E-value: 1.45e-17
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 534 ALSSISYVGCSLSVLCLAATLVTFAVLSSVSTirnQRYHIHANLSFAVLVAQVLLLISFS--------MEPGTVPCQVLA 605
Cdd:cd15274     3 NLYYLAIVGHSLSIATLLISLGIFFFFRSLSC---QRVTLHKNLFLSYILNSIIIIIHLVavvpngelVARNPVSCKILH 79
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 606 VLLHYFFLTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICIISISSSmdSYGTSDSCWLALGSGAIWAF 685
Cdd:cd15274    80 FIHQYMMGCNYFWMLCEGIYLHTLIVVAVFAEKQRLMWYYLLGWGFPLIPTTIHAITR--AVYYNDNCWLSSETHLLYII 157
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 686 VGPALLVIVVNIVILVAVTRVishISTDSYKIHGDPSAFKLTA-KAVAVLLPILGTSWVFGVLAVSDRAL--VFQYMFAI 762
Cdd:cd15274   158 HGPIMAALVVNFFFLLNIVRV---LVTKLRETHEAESHMYLKAvKATLILVPLLGIQFVLFPWRPSGKILgkIYDYVMHS 234
                         250       260
                  ....*....|....*....|....*
gi 1907163470 763 LNSLQGLFIFLFHCLLNSEVRAAFK 787
Cdd:cd15274   235 LIHFQGFFVATIFCFCNGEVQATLK 259
7tmB1_GHRHR2 cd15271
growth-hormone-releasing hormone receptor type 2, member of the class B family of ...
542-787 2.63e-17

growth-hormone-releasing hormone receptor type 2, member of the class B family of seven-transmembrane G protein-coupled receptors; Growth hormone-releasing hormone receptor type 2 (GHRHR2) is found in non-mammalian vertebrates such as chicken and frog. It is a member of the group of G protein-coupled receptors for structurally similar peptide hormones that also include secretin, pituitary adenylate cyclase activating polypeptide (PACAP), vasoactive intestinal peptide, and mammalian growth hormone-releasing hormone. These receptors are classified into the subfamily B1 of class B GRCRs that consists of the classical hormone receptors and have been identified in all the vertebrates, from fishes to mammals, but are not present in plants, fungi, or prokaryotes. For all class B receptors, the large N-terminal extracellular domain plays a critical role in peptide hormone recognition. Mammalian GHRHR is a specific receptor for the growth hormone-releasing hormone (GHRH) that controls the synthesis and release of growth hormone (GH) from the anterior pituitary somatotrophs. Mutations in the gene encoding GHRHR have been connected to isolated growth hormone deficiency (IGHD), a short-stature condition caused by deficient production of GH or lack of GH action. Mammalian GHRH is preferentially coupled to a stimulatory G(s) protein, which leads to the activation of adenylate cyclase and thereby increases in intracellular cAMP level. GHRHR is found in mammals as well as zebrafish and chicken, whereas the GHRHR type 2, an ortholog of the GHRHR, has only been identified in ray-finned fish, chicken and Xenopus. Xenopus laevis GHRHR2 has been shown to interact with both endogenous GHRH and PACAP-related peptide (PRP).


Pssm-ID: 320399 [Multi-domain]  Cd Length: 267  Bit Score: 82.86  E-value: 2.63e-17
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 542 GCSLSVLCLAatLVTFAVLSSVSTIRNqryHIHANL--SF-----AVLVAQVLLLISFSMEP---GTVPCQVLAVLLHYF 611
Cdd:cd15271    13 GTSLTSLITA--VLIFCTFRKLHCTRN---YIHINLfvSFilralAVFIKDAVLFADESVDHctmSTVACKAAVTFFQFC 87
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 612 FLTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICI--ISISSSMDSYGtsdsCWLALGSGAIWAFVGPA 689
Cdd:cd15271    88 VLANFFWLLVEGMYLQTLLLLTFTSDRKYFWWYILIGWGAPSVTVTvwVLTRLQYDNRG----CWDDLESRIWWIIKTPI 163
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 690 LLVIVVNIVILVAVTRVISHiSTDSYKIHG-DPSAFKLTAKAVAVLLPILGTSW-VFGVLAVSDRALVFQYMFAILNSLQ 767
Cdd:cd15271   164 LLSVFVNFLIFINVIRILVQ-KLKSPDVGGnDTSHYMRLAKSTLLLIPLFGVHYvVFAFFPEHVGVEARLYFELVLGSFQ 242
                         250       260
                  ....*....|....*....|
gi 1907163470 768 GLFIFLFHCLLNSEVRAAFK 787
Cdd:cd15271   243 GFIVALLYCFLNGEVQAEIK 262
7tmB1_GLP2R cd15266
glucagon-like peptide-2 receptor, member of the class B family of seven-transmembrane G ...
532-795 4.94e-17

glucagon-like peptide-2 receptor, member of the class B family of seven-transmembrane G protein-coupled receptors; Glucagon-like peptide-2 receptor (GLP2R) is a member of the glucagon receptor family of G protein-coupled receptors, which also includes glucagon receptor (GCGR) and GLP1R. GLP2R is activated by glucagon-like peptide 2, which is derived from the large proglucagon precursor. Activation of GLP1R stimulates glucose-dependent insulin secretion from pancreatic beta cells, whereas activation of GLP2R stimulates intestinal epithelial proliferation and increases villus height in the small intestine. GCGR regulates blood glucose levels by control of hepatic glycogenolysis and gluconeogenesis and by regulation of insulin secretion from the pancreatic beta-cells. GLP2R belongs to the B1 (or secretin-like) subfamily of class B GPCRs, which includes receptors for polypeptide hormones of 27-141 amino-acid residues such as secretin, calcitonin gene-related peptide, parathyroid hormone (PTH), and corticotropin-releasing factor. These receptors contain the large N-terminal extracellular domain (ECD), which plays a critical role in hormone recognition by binding to the C-terminal portion of the peptide. On the other hand, the N-terminal segment of the hormone induces receptor activation by interacting with the receptor transmembrane domains and connecting extracellular loops, triggering intracellular signaling pathways. All members of the B1 subfamily preferentially couple to G proteins of G(s) family, which positively stimulate adenylate cyclase, leading to increased intracellular cAMP formation and calcium influx. However, depending on their cellular location, GCGR and GLP receptors can activate multiple G proteins, which can in turn stimulate different second messenger pathways.


Pssm-ID: 320394 [Multi-domain]  Cd Length: 280  Bit Score: 82.10  E-value: 4.94e-17
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 532 QVALSSISYVGCSLSVLCLAATLVTFAVLSSVSTIRNqryHIHANL--SF-----AVLVAQVLLLISFSMEPGTVP---- 600
Cdd:cd15266     1 LLTLQLIYTIGYSLSLISLSLALLILLLLRKLHCTRN---YIHMNLfaSFilralAVLIKDIVLYSTYSKRPDDETgwis 77
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 601 ---------CQVLAVLLHYFFLTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICIISISSSmdSYGTSD 671
Cdd:cd15266    78 ylseesstsCRVAQVFMHYFVGANYFWLLVEGLYLHTLLVTAVLSERRLLKKYMLIGWGTPVLFVVPWGVAK--ILLENT 155
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 672 SCWLALGSGAIWAFV-GPALLVIVVNIVILVAVTR-VISHISTDSYKIHGdpSAFKLtAKAVAVLLPILGT-SWVFGVLA 748
Cdd:cd15266   156 GCWGRNENMGIWWIIrGPILLCITVNFYIFLKILKlLLSKLKAQQMRFTD--YKYRL-ARSTLVLIPLLGIhEVVFSFIT 232
                         250       260       270       280       290
                  ....*....|....*....|....*....|....*....|....*....|.
gi 1907163470 749 ---VSDRALVFQ-YMFAILNSLQGLFIFLFHCLLNSEVRAAFKhktKVWSL 795
Cdd:cd15266   233 deqVEGFSRHIRlFIQLTLSSFQGFLVAVLYCFANGEVKAELK---KRWQL 280
7tmB1_Secretin_R-like cd15930
secretin receptor-like group of hormone receptors, member of the class B family of ...
541-789 1.06e-16

secretin receptor-like group of hormone receptors, member of the class B family of seven-transmembrane G protein-coupled receptors; This group represents G protein-coupled receptors for structurally similar peptide hormones that include secretin, growth-hormone-releasing hormone (GHRH), pituitary adenylate cyclase activating polypeptide (PACAP), and vasoactive intestinal peptide (VIP). These receptors are classified into the subfamily B1 of class B GRCRs that consists of the classical hormone receptors and have been identified in all the vertebrates, from fishes to mammals, but are not present in plants, fungi, or prokaryotes. For all class B receptors, the large N-terminal extracellular domain plays a critical role in peptide hormone recognition. Secretin, a polypeptide secreted by entero-endocrine S cells in the small intestine, is involved in maintaining body fluid balance. This polypeptide regulates the secretion of bile and bicarbonate into the duodenum from the pancreatic and biliary ducts, as well as regulates the duodenal pH by the control of gastric acid secretion. Studies with secretin receptor-null mice indicate that secretin plays a role in regulating renal water reabsorption. Secretin mediates its biological actions by elevating intracellular cAMP via G protein-coupled secretin receptors, which are expressed in the brain, pancreas, stomach, kidney, and liver. GHRHR is a specific receptor for the growth hormone-releasing hormone (GHRH) that controls the synthesis and release of growth hormone (GH) from the anterior pituitary somatotrophs. Mutations in the gene encoding GHRHR have been connected to isolated growth hormone deficiency (IGHD), a short-stature condition caused by deficient production of GH or lack of GH action. VIP and PACAP exert their effects through three G protein-coupled receptors, PACAP-R1, VIP-R1 (vasoactive intestinal receptor type 1, also known as VPAC1) and VIP-R2 (or VPAC2). PACAP-R1 binds only PACAP with high affinity, whereas VIP-R1 and -R2 specifically bind and respond to both VIP and PACAP. VIP and PACAP and their receptors are widely expressed in the brain and periphery. They are upregulated in neurons and immune cells in responses to CNS injury and/or inflammation and exert potent anti-inflammatory effects, as well as play important roles in the control of circadian rhythms and stress responses, among many others. All B1 subfamily GPCRs are able to increase intracellular cAMP levels by coupling to adenylate cyclase via a stimulatory Gs protein. However, depending on its cellular location, some members of subfamily B1 are also capable of coupling to additional G proteins such as G(i/o) and/or G(q) proteins, thereby leading to activation of phospholipase C and intracellular calcium influx.


Pssm-ID: 320596 [Multi-domain]  Cd Length: 268  Bit Score: 80.94  E-value: 1.06e-16
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 541 VGCSLSVLCLAATLVTFAVLSSVSTIRNQrYHIHANLSF-----AVLVAQVLLLISFSME---PGTVPCQVLAVLLHYFF 612
Cdd:cd15930    10 VGYSLSLTSLTTAMIILCLFRKLHCTRNY-IHMNLFVSFilraiAVFIKDAVLFSSEDVDhcfVSTVGCKASMVFFQYCV 88
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 613 LTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICIISISSSMdsYGTSDSCWLALGSGAIWAFV-GPALL 691
Cdd:cd15930    89 MANFFWLLVEGLYLHTLLVISFFSERRYFWWYVLIGWGAPTVFVTVWIVARL--YFEDTGCWDINDESPYWWIIkGPILI 166
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 692 VIVVNIVILVAVTRVISHISTDSYKIHGDPSAFKLTAKAVAVLLPILGTSW-VFGVLAVSDRALVFQYMFAILNSLQGLF 770
Cdd:cd15930   167 SILVNFVLFINIIRILLQKLRSPDIGGNESSQYKRLARSTLLLIPLFGIHYiVFAFFPENISLGIRLYFELCLGSFQGFV 246
                         250
                  ....*....|....*....
gi 1907163470 771 IFLFHCLLNSEVRAAFKHK 789
Cdd:cd15930   247 VAVLYCFLNGEVQAEIKRK 265
7tmB2_GPR128 cd15257
orphan adhesion receptor GPR128, member of the class B2 family of seven-transmembrane G ...
533-773 2.36e-16

orphan adhesion receptor GPR128, member of the class B2 family of seven-transmembrane G protein-coupled receptors; GPR128 is an orphan receptor of the adhesion family (subclass B2) that belongs to the class B GPCRs. Expression of GPR128 was detected in the mouse intestinal mucosa and is thought to be involved in energy balance, as its knockout mice showed a decrease in body weight gain and an increase in intestinal contraction frequency compared to wild-type controls. The adhesion receptors are characterized by the presence of large N-terminal extracellular domains containing multiple adhesion motifs, which play critical roles in cell-cell adhesion and cell-matrix interactions, that are coupled to a class B seven-transmembrane domain. These include, for example, EGF (epidermal growth factor)-like domains in CD97, Celsr1 (cadherin family member), Celsr2, Celsr3, EMR1 (EGF-module-containing mucin-like hormone receptor-like 1), EMR2, EMR3, and Flamingo; two laminin A G-type repeats and nine cadherin domains in Flamingo and its human orthologs Celsr1, Celsr2 and Celsr3; olfactomedin-like domains in the latrotoxin receptors; and five or four thrombospondin type 1 repeats in BAI1 (brain-specific angiogenesis inhibitor 1), BAI2 and BAI3. Furthermore, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR- autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions.


Pssm-ID: 320385 [Multi-domain]  Cd Length: 303  Bit Score: 80.69  E-value: 2.36e-16
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 533 VALSSISYVGCSLSVLCLAATLV-------------------------TFAVLSsVSTIRNQRYHIHANlSFAVLVAQVL 587
Cdd:cd15257     2 KTLDIISTIGCVLSIAGLVITIIfhlhtrklrkssvtwvllnlcssllLFNIIF-TSGVENTNNDYEIS-TVPDRETNTV 79
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 588 LLISFSMEPGTVPCQVLAVLLHYFFLTAFAWMLVEGLHLYSMVIKVFGSEDSKH-LYYYGIGWGCPLLICIISI------ 660
Cdd:cd15257    80 LLSEEYVEPDTDVCTAVAALLHYFLLVTFMWNAVYSAQLYLLLIRMMKPLPEMFiLQASAIGWGIPAVVVAITLgatyrf 159
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 661 ----SSSMDSYGTSDSCWLA-------LGSGAIWAFVGP-ALLVIVVNIVILVAVTRVISHISTDSYKIHGDPSAFKLTA 728
Cdd:cd15257   160 ptslPVFTRTYRQEEFCWLAaldknfdIKKPLLWGFLLPvGLILITNVILFIMTSQKVLKKNNKKLTTKKRSYMKKIYIT 239
                         250       260       270       280
                  ....*....|....*....|....*....|....*....|....*...
gi 1907163470 729 KAVAVLlpiLGTSWVFG--VLAVSDRA-LVFQYMFAILNSLQGLFIFL 773
Cdd:cd15257   240 VSVAVV---FGITWILGylMLVNNDLSkLVFSYIFCITNTTQGVQIFI 284
7tmB1_VIP-R1 cd15269
vasoactive intestinal polypeptide (VIP) receptor 1, member of the class B family of ...
541-789 2.39e-16

vasoactive intestinal polypeptide (VIP) receptor 1, member of the class B family of seven-transmembrane G protein-coupled receptors; Vasoactive intestinal peptide (VIP) receptor 1 is a member of the group of G protein-coupled receptors for structurally similar peptide hormones that also include secretin, growth-hormone-releasing hormone (GHRH), and pituitary adenylate cyclase activating polypeptide (PACAP). These receptors are classified into the subfamily B1 of class B GRCRs that consists of the classical hormone receptors and have been identified in all the vertebrates, from fishes to mammals, but are not present in plants, fungi, or prokaryotes. For all class B receptors, the large N-terminal extracellular domain plays a critical role in peptide hormone recognition. VIP and PACAP exert their effects through three G protein-coupled receptors, PACAP-R1, VIP-R1 (vasoactive intestinal receptor type 1, also known as VPAC1) and VIP-R2 (or VPAC2). PACAP-R1 binds only PACAP with high affinity, whereas VIP-R1 and -R2 specifically bind and respond to both VIP and PACAP. VIP and PACAP and their receptors are widely expressed in the brain and periphery. They are upregulated in neurons and immune cells in responses to CNS injury and/or inflammation and exert potent anti-inflammatory effects, as well as play important roles in the control of circadian rhythms and stress responses, among many others. VIP-R1 is preferentially coupled to a stimulatory G(s) protein, which leads to the activation of adenylate cyclase and thereby increases in intracellular cAMP level. However, depending on its cellular location, VIP-R1 is also capable of coupling to additional G proteins such as G(q) protein, thus leading to the activation of phospholipase C and intracellular calcium influx.


Pssm-ID: 320397 [Multi-domain]  Cd Length: 268  Bit Score: 79.90  E-value: 2.39e-16
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 541 VGCSLSVLCLAATLVTFAVLSSVSTIRNQrYHIHANLSF-----AVLVAQVLLLISFSME---PGTVPCQVLAVLLHYFF 612
Cdd:cd15269    10 IGHSLSLISLTAAMIILCLFRKLHCTRNY-IHMHLFMSFilraiAVFIKDAVLFESGEEDhcsVASVGCKAAMVFFQYCI 88
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 613 LTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICIISISSSMdsYGTSDSCWLALGSGAIWAFV-GPALL 691
Cdd:cd15269    89 MANFFWLLVEGLYLHTLLAVSFFSERKYFWWYILIGWGAPSVFITAWSVARI--YFEDVGCWDTIIESLLWWIIkTPILV 166
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 692 VIVVNIVILVAVTRVISHISTDSYKIHGDPSAFKLTAKAVAVLLPILGTSWV-FGVLAVSDRALVFQYMFAILNSLQGLF 770
Cdd:cd15269   167 SILVNFILFICIIRILVQKLHSPDIGRNESSQYSRLAKSTLLLIPLFGIHYImFAFFPDNFKAEVKLVFELILGSFQGFV 246
                         250
                  ....*....|....*....
gi 1907163470 771 IFLFHCLLNSEVRAAFKHK 789
Cdd:cd15269   247 VAVLYCFLNGEVQAELKRK 265
7tmB1_GlucagonR-like_1 cd15985
uncharacterized group of glucagon receptor-like proteins, member of the class B family of ...
533-789 6.14e-16

uncharacterized group of glucagon receptor-like proteins, member of the class B family of seven-transmembrane G protein-coupled receptors; This group consists of uncharacterized proteins with similarity to members of the glucagon receptor family of G protein-coupled receptors, which include glucagon receptor (GCGR), and glucagon-like peptide-1 receptor (GLP1R), and GLP2R. The glucagon receptors are activated by the members of the glucagon (GCG) peptide family including GCG, glucagon-like peptide 1 (GLP1), and GLP2, which are derived from the large proglucagon precursor. GCGR regulates blood glucose levels by control of hepatic glycogenolysis and gluconeogenesis and by regulation of insulin secretion from the pancreatic beta-cells. Activation of GLP1R stimulates glucose-dependent insulin secretion from pancreatic beta cells, whereas activation of GLP2R stimulates intestinal epithelial proliferation and increases villus height in the small intestine. Receptors in this group belong to the B1 (or secretin-like) subfamily of class B GPCRs, which includes receptors for polypeptide hormones of 27-141 amino-acid residues such as secretin, calcitonin gene-related peptide, parathyroid hormone (PTH), and corticotropin-releasing factor. These receptors contain the large N-terminal extracellular domain (ECD), which plays a critical role in hormone recognition by binding to the C-terminal portion of the peptide. On the other hand, the N-terminal segment of the hormone induces receptor activation by interacting with the receptor transmembrane domains and connecting extracellular loops, triggering intracellular signaling pathways. All members of the B1 subfamily preferentially couple to G proteins of G(s) family, which positively stimulate adenylate cyclase, leading to increased intracellular cAMP formation and calcium influx. However, depending on their cellular location, GCGR and GLP receptors can activate multiple G proteins, which can in turn stimulate different second messenger pathways.


Pssm-ID: 320651 [Multi-domain]  Cd Length: 280  Bit Score: 79.20  E-value: 6.14e-16
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 533 VALSSISYVGCSLSVLCLAATLVtfaVLSSVSTIRNQRYHIHANL--SFA-----VLVAQVLLLISFSME---------- 595
Cdd:cd15985     2 VSFRMLYTVGYTLSLLTLVSALL---ILTSIRKLHCTRNYIHANLfaSFIlravsVIVKDTLLERRWGREimrvadwgel 78
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 596 ---PGTVPCQVLAVLLHYFFLTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICIISISSSMdsYGTSDS 672
Cdd:cd15985    79 lshKAAIGCRMAQVVMQYCILANHYWFFVEAVYLYKLLIGAVFSEKNYYLLYLYLGWGTPVLFVVPWMLAKY--LKENKE 156
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 673 CWLALGSGAIWAFVG-PALLVIVVNIVILVAVTRVISHISTDSYKIHGDpsaFKLT-AKAVAVLLPILGTSWVFGVLAVS 750
Cdd:cd15985   157 CWALNENMAYWWIIRiPILLASLINLLIFMRILKVILSKLRANQKGYAD---YKLRlAKATLTLIPLFGIHEVVFIFATD 233
                         250       260       270       280
                  ....*....|....*....|....*....|....*....|....*.
gi 1907163470 751 DRAL-------VFQYMFaiLNSLQGLFIFLFHCLLNSEVRAAFKHK 789
Cdd:cd15985   234 EQTTgilryikVFFTLF--LNSFQGFLVAVLYCFANKEVKSELLKK 277
7tmB1_NPR_B3_insect-like cd15262
insect neuropeptide receptor subgroup B3 and related proteins belong to subfamily B1 of ...
547-787 3.11e-15

insect neuropeptide receptor subgroup B3 and related proteins belong to subfamily B1 of hormone receptors; member of the class B secretin-like seven-transmembrane G protein-coupled receptors; This subgroup includes a neuropeptide receptor found in Bombyx mori (silk worm) and its closely related proteins from arthropods. They belong to the B1 subfamily of class B GPCRs, also referred to as secretin-like receptor family, which includes receptors for polypeptide hormones of 27-141 amino-acid residues such as secretin, glucagon, glucagon-like peptide (GLP), calcitonin gene-related peptide, parathyroid hormone (PTH), and corticotropin-releasing factor. These receptors contain the large N-terminal extracellular domain (ECD), which plays a critical role in hormone recognition by binding to the C-terminal portion of the peptide. On the other hand, the N-terminal segment of the hormone induces receptor activation by interacting with the receptor transmembrane domains and connecting extracellular loops, triggering intracellular signaling pathways. All members of the B1 subfamily preferentially couple to G proteins of G(s) family, which positively stimulate adenylate cyclase, leading to increased intracellular cAMP formation and calcium influx. The class B GPCRs have been identified in all the vertebrates, from fishes to mammals, as well as invertebrates including Caenorhabditis elegans and Drosophila melanogaster, but are not present in plants, fungi, or prokaryotes.


Pssm-ID: 320390 [Multi-domain]  Cd Length: 270  Bit Score: 76.72  E-value: 3.11e-15
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 547 VLCLAATLVTFavlsSVSTIRNQRYHIHANLSFAVLVAQVLLLISFS---------------MEPGTVPCQVLAVLLHYF 611
Cdd:cd15262    17 VTSLPAVFIFY----SYKRLRITRVILHRNLLISIIIRNILVIISKVfvildaltssgddtvMNQNAVVCRLLSIFERAA 92
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 612 FLTAFAWMLVEGLHLYSMVIKVFgSEDSKHLYYYGIGWGCPLLICIISISSSMDSYGTsdSCWLALGSGAIWAFVGPALL 691
Cdd:cd15262    93 RNAVFACMFVEGFYLHRLIVAVF-AEKSSIRFLYVIGAVLPLFPVIIWAIIRALHNDH--SCWVVDIEGVQWVLDTPRLF 169
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 692 VIVVNIVILVAVTRV-ISHISTDsykihGDPSAFKLTAKAVAVLLPILGTSWVFGVLAVS----DRALVFQYMFAILNSL 766
Cdd:cd15262   170 ILLVNTVLLVDIIRVlVTKLRNT-----EENSQTKSTTRATLFLVPLFGLHFVITAYRPStddcDWEDIYYYANYLIEGL 244
                         250       260
                  ....*....|....*....|.
gi 1907163470 767 QGLFIFLFHCLLNSEVRAAFK 787
Cdd:cd15262   245 QGFLVAILFCYINKEVHYLIK 265
7tmB2_GPR97 cd15442
orphan adhesion receptor GPR97, member of the class B2 family of seven-transmembrane G ...
535-778 5.15e-15

orphan adhesion receptor GPR97, member of the class B2 family of seven-transmembrane G protein-coupled receptors; GPR97 is an orphan receptor that has been classified into the group VIII of adhesion GPCRs. Other members of the Group VII include GPR56, GPR64, GPR112, GPR114, and GPR126. GPR97 is identified as a lymphatic adhesion receptor that is specifically expressed in lymphatic endothelium, but not in blood vascular endothelium, and is shown to regulate migration of lymphatic endothelial cells via the small GTPases RhoA and cdc42. The adhesion receptors are characterized by the presence of large N-terminal extracellular domains containing multiple adhesion motifs, which play critical roles in cell-cell adhesion and cell-matrix interactions, that are coupled to a class B seven-transmembrane domain. Furthermore, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR- autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions.


Pssm-ID: 320558 [Multi-domain]  Cd Length: 277  Bit Score: 76.38  E-value: 5.15e-15
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 535 LSSISYVGCSLSVLCLAATLVTFAVLSSVSTI--RNQRYHIHANLSFAVLVAQVLLLISFSMEPGTVP--CQVLAVLLHY 610
Cdd:cd15442     4 LVTISSAGCGVSMVFLIFTIILYFFLRFTYQKfkSEDAPKIHVNLSSSLLLLNLAFLLNSGVSSRAHPglCKALGGVTHY 83
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 611 FFLTAFAWMLVEGLHLYSMVIKVFGSedskHLYYYG-----IGWGCPLLicIISISSSMDSYG-----------TSDSCW 674
Cdd:cd15442    84 FLLCCFTWMAIEAFHLYLLAIKVFNT----YIHHYFaklclVGWGFPAL--VVTITGSINSYGaytimdmanrtTLHLCW 157
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 675 laLGSGAIWAFVgpaLLVIVVNIVILVAVTRVISHISTDSYKIHGdPSAFKLTAKAVAVLLPILGTS------WVFGVLA 748
Cdd:cd15442   158 --INSKHLTVHY---ITVCGYFGLTFLFNTVVLGLVAWKIFHLQS-ATAGKEKCQAWKGGLTVLGLScllgvtWGLAFFT 231
                         250       260       270
                  ....*....|....*....|....*....|
gi 1907163470 749 VSDRALVFQYMFAILNSLQGLFIFLFHCLL 778
Cdd:cd15442   232 YGSMSVPTVYIFALLNSLQGLFIFIWFVIL 261
7tmB1_PACAP-R1 cd15987
pituitary adenylate cyclase-activating polypeptide type 1 receptor, member of the class B ...
533-789 7.33e-15

pituitary adenylate cyclase-activating polypeptide type 1 receptor, member of the class B family of seven-transmembrane G protein-coupled receptors; Pituitary adenylate cyclase-activating polypeptide type 1 receptor (PACAP-R1) is a member of the group of G protein-coupled receptors for structurally similar peptide hormones that also include secretin, growth-hormone-releasing hormone (GHRH), and vasoactive intestinal peptide (VIP). These receptors are classified into the subfamily B1 of class B GRCRs that consists of the classical hormone receptors and have been identified in all the vertebrates, from fishes to mammals, but are not present in plants, fungi, or prokaryotes. For all class B receptors, the large N-terminal extracellular domain plays a critical role in peptide hormone recognition. VIP and PACAP exert their effects through three G protein-coupled receptors, PACAP-R1, VIP-R1 (vasoactive intestinal receptor type 1, also known as VPAC1) and VIP-R2 (or VPAC2). PACAP-R1 binds only PACAP with high affinity, whereas VIP-R1 and -R2 specifically bind and respond to both VIP and PACAP. VIP and PACAP and their receptors are widely expressed in the brain and periphery. They are upregulated in neurons and immune cells in responses to CNS injury and/or inflammation and exert potent anti-inflammatory effects, as well as play important roles in the control of circadian rhythms and stress responses, among many others. PACAP-R1 is preferentially coupled to a stimulatory G(s) protein, which leads to the activation of adenylate cyclase and thereby increases in intracellular cAMP level.


Pssm-ID: 320653 [Multi-domain]  Cd Length: 268  Bit Score: 75.78  E-value: 7.33e-15
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 533 VALSSISYVGCSLSVLCLAATLVTFAVLSSVSTIRNqryHIHANLSFAVLVAQVLLLIS----FSMEPG------TVPCQ 602
Cdd:cd15987     2 LSVKALYTVGYSTSLVSLTTAMVILCRFRKLHCTRN---FIHMNLFVSFILRAISVFIKdgvlYAEQDSdhcfvsTVECK 78
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 603 VLAVLLHYFFLTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICIISISSSMdsYGTSDSCWLALGSGAI 682
Cdd:cd15987    79 AVMVFFHYCVMSNYFWLFIEGLYLFTLLVETFFPERRYFYWYTIIGWGTPTICVTVWAVLRL--HFDDTGCWDMNDNTAL 156
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 683 WAFVGPALLVIVVNIVILVAVTRVISHISTDSYKIHGDPSAFKLT-AKAVAVLLPILG---TSWVFGVLAVSDRA-LVFQ 757
Cdd:cd15987   157 WWVIKGPVVGSIMINFVLFIGIIIILVQKLQSPDIGGNESSIYLRlARSTLLLIPLFGihyTVFAFSPENVSKRErLVFE 236
                         250       260       270
                  ....*....|....*....|....*....|..
gi 1907163470 758 YMfaiLNSLQGLFIFLFHCLLNSEVRAAFKHK 789
Cdd:cd15987   237 LG---LGSFQGFVVAVLYCFLNGEVQSEIKRK 265
7tmB1_PTH-R_related cd15272
invertebrate parathyroid hormone-related receptors, member of the class B family of ...
541-793 1.65e-14

invertebrate parathyroid hormone-related receptors, member of the class B family of seven-transmembrane G protein-coupled receptors; This group includes parathyroid hormone (PTH)-related receptors found in invertebrates such as mollusks and annelid worms. The PTH family receptors are members of the B1 subfamily of class B GPCRs, which includes receptors for polypeptide hormones of 27-141 amino-acid residues such as secretin, glucagon, glucagon-like peptide (GLP), and calcitonin gene-related peptide. These receptors contain the large N-terminal extracellular domain (ECD), which plays a critical role in hormone recognition by binding to the C-terminal portion of the peptide. On the other hand, the N-terminal segment of the hormone induces receptor activation by interacting with the receptor transmembrane domains and connecting extracellular loops, triggering intracellular signaling pathways. The parathyroid hormone type 1 receptor (PTH1R) is found in all vertebrate species and is activated by two polypeptide ligands: parathyroid hormone (PTH), an endocrine hormone that regulates calcium homoeostasis and bone maintenance, and PTH-related peptide (PTHrP), a paracrine factor that regulates endochondral bone development. PTH1R couples predominantly to G(s)- protein that in turn activates adenylyl cyclase thereby producing cAMP, but it can also couple to several G protein subtypes, including G(q/11), G(i/o), and G(12/13), resulting in activation of multiple signaling pathways.


Pssm-ID: 320400 [Multi-domain]  Cd Length: 285  Bit Score: 74.73  E-value: 1.65e-14
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 541 VGCSLSVLCLaatLVTFAVLSSVSTIRNQRYHIHANLSFAVLVAQVL------LLISFSMEPGTV--------------- 599
Cdd:cd15272    10 IGYGLSLVSL---LIAVIIMLYFKKLHCPRNTIHINLFVSFILRAVLsfikenLLVQGVGFPGDVyydsngviefkdegs 86
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 600 --PCQVLAVLLHYFFLTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLicIISISSSMDSYGTSDSCW-LA 676
Cdd:cd15272    87 hwECKLFFTMFNYILGANYMWIFVEGLYLHMLIFVAVFSENSRVKWYILLGWLSPLL--FVLPWVFVRATLEDTLCWnTN 164
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 677 LGSGAIWAFVGPALLVIVVNIVILVAVTRVISHISTDSYKIHGDPSAFKLTAKAVAVLLPILGTSW-VFGVLAVSDRA-- 753
Cdd:cd15272   165 TNKGYFWIIRGPIVISIAINFLFFINIVRVLFTKLKASNTQESRPFRYRKLAKSTLVLIPLFGVHYmVFVVLPDSMSSde 244
                         250       260       270       280
                  ....*....|....*....|....*....|....*....|..
gi 1907163470 754 --LVFQYMFAILNSLQGLFIFLFHCLLNSEVRAAFKhktKVW 793
Cdd:cd15272   245 aeLVWLYFEMFFNSFQGFIVALLFCFLNGEVQSEIK---KKW 283
7tmB1_NPR_B7_insect-like cd15273
insect neuropeptide receptor subgroup B7 and related proteins, member of the class B family of ...
538-789 1.94e-14

insect neuropeptide receptor subgroup B7 and related proteins, member of the class B family of seven-transmembrane G protein-coupled receptors; This subgroup includes a neuropeptide receptor found in Nilaparvata lugens (brown planthopper) and its closely related proteins from invertebrates. They belong to the B1 subfamily of class B GPCRs, also referred to as secretin-like receptor family, which includes receptors for polypeptide hormones of 27-141 amino-acid residues such as secretin, glucagon, glucagon-like peptide (GLP), calcitonin gene-related peptide, parathyroid hormone (PTH), and corticotropin-releasing factor. These receptors contain the large N-terminal extracellular domain (ECD), which plays a critical role in hormone recognition by binding to the C-terminal portion of the peptide. On the other hand, the N-terminal segment of the hormone induces receptor activation by interacting with the receptor transmembrane domains and connecting extracellular loops, triggering intracellular signaling pathways. All members of the B1 subfamily preferentially couple to G proteins of G(s) family, which positively stimulate adenylate cyclase, leading to increased intracellular cAMP formation and calcium influx. The class B GPCRs have been identified in all the vertebrates, from fishes to mammals, as well as invertebrates including Caenorhabditis elegans and Drosophila melanogaster, but are not present in plants, fungi, or prokaryotes.


Pssm-ID: 320401 [Multi-domain]  Cd Length: 285  Bit Score: 74.71  E-value: 1.94e-14
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 538 ISYVGCSLSVLCLaatLVTFAVLSSVSTIRNQR--YHIHANLSFaVLVAQVLLLI-----------------------SF 592
Cdd:cd15273     7 ISQIGYIVSLITL---IIAFAIFLSFKKLHCARnkLHMHLFASF-ILRAFMTLLKdslfidglglladiverngggneVI 82
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 593 SMEPGTVPCQVLAVLLHYFFLTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICIISISSSM---DSYgt 669
Cdd:cd15273    83 ANIGSNWVCKAITSLWQYFIIANYSWILMEGLYLHNLIFLALFSDENNIILYILLGWGLPLIFVVPWIVARIlfeNSL-- 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 670 sdsCWLALGSGAIWAFV-GPALLVIVVNIVILVAVTRVI-----SHISTDSYKihgdpsaFKLTAKAVAVLLPILGTSW- 742
Cdd:cd15273   161 ---CWTTNSNLLNFLIIrIPIMISVLINFILFLNIVRVLlvklrSSVNEDSRR-------YKKWAKSTLVLVPLFGVHYt 230
                         250       260       270       280       290
                  ....*....|....*....|....*....|....*....|....*....|..
gi 1907163470 743 ---VFGVLAVSDRALVFQYMF--AILNSLQGLFIFLFHCLLNSEVRAAFKHK 789
Cdd:cd15273   231 iflILSYLDDTNEAVELIWLFcdQLFASFQGFFVALLYCFLNGEVRAEIQRK 282
7tmB2_GPR123 cd16000
G protein-coupled receptor 123, member of the class B2 family of seven-transmembrane G ...
535-782 2.57e-14

G protein-coupled receptor 123, member of the class B2 family of seven-transmembrane G protein-coupled receptors; GPR123 is an orphan receptor that has been classified as that belongs to the group III of adhesion GPCRs, and also includes orphan receptors GPR124 and GPR125. GPR123 is predominantly expressed in the CNS including thalamus, brain stem and regions containing large pyramidal cells, yet its biological function remains to be determined. Adhesion receptors are characterized by the presence of large N-terminal extracellular domains containing multiple adhesion motifs, which play critical roles in cell-cell adhesion and cell-matrix interactions, that are coupled to a class B seven-transmembrane domain. Furthermore, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR- autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions.


Pssm-ID: 320666 [Multi-domain]  Cd Length: 275  Bit Score: 74.22  E-value: 2.57e-14
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 535 LSSISYVGCSLSVLCLAATLVTFAVLSSVSTIRNQRYHI------HANLSFAVLVAQvlllISFSMEPgtVPCQVLAVLL 608
Cdd:cd16000     4 LHPVVYACTAVMLLCLFASIITYIVHHSTIRISRKGWHMllnfcfHTALTFAVFAGG----INRTKYP--IICQAVGIVL 77
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 609 HYFFLTAFAWMLVEGLHLYSMVIK----VFGSEDSKH-----LYYYGIGWGCPLLICIISISSSMDSYGTSDS----CWL 675
Cdd:cd16000    78 HYSTLSTMLWIGVTARNIYKQVTKkphlCQDTDQPPYpkqplLRFYLVSGGVPFIICGITAATNINNYGTEDEdtpyCWM 157
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 676 ALgSGAIWAFVGPALLVIVVNIVILVAVTRVISHISTDSYKIHGDPSaFKLTAKAVAVLLPILGTSWVFGVLAVSDRA-- 753
Cdd:cd16000   158 AW-EPSLGAFYGPVAFIVLVTCIYFLCTYVQLRRHPERKYELKNEHS-FKAQLRAAAFTLFLFTATWAFGALAVSQGHfl 235
                         250       260       270
                  ....*....|....*....|....*....|
gi 1907163470 754 -LVFQYMFAILNSLQGLFIFLFHCLLNSEV 782
Cdd:cd16000   236 dMIFSCLYGAFCVTLGLFILIHHCAKRDDV 265
7tmB1_VIP-R2 cd15986
vasoactive intestinal polypeptide (VIP) receptor 2, member of the class B family of ...
533-789 5.92e-14

vasoactive intestinal polypeptide (VIP) receptor 2, member of the class B family of seven-transmembrane G protein-coupled receptors; Vasoactive intestinal peptide (VIP) receptor 2 is a member of the group of G protein-coupled receptors for structurally similar peptide hormones that also include secretin, growth-hormone-releasing hormone (GHRH), and pituitary adenylate cyclase activating polypeptide (PACAP). These receptors are classified into the subfamily B1 of class B GRCRs that consists of the classical hormone receptors and have been identified in all the vertebrates, from fishes to mammals, but are not present in plants, fungi, or prokaryotes. For all class B receptors, the large N-terminal extracellular domain plays a critical role in peptide hormone recognition. VIP and PACAP exert their effects through three G protein-coupled receptors, PACAP-R1, VIP-R1 (vasoactive intestinal receptor type 1, also known as VPAC1) and VIP-R2 (or VPAC2). PACAP-R1 binds only PACAP with high affinity, whereas VIP-R1 and -R2 specifically bind and respond to both VIP and PACAP. VIP and PACAP and their receptors are widely expressed in the brain and periphery. They are upregulated in neurons and immune cells in responses to CNS injury and/or inflammation and exert potent anti-inflammatory effects, as well as play important roles in the control of circadian rhythms and stress responses, among many others. VIP-R1 is preferentially coupled to a stimulatory G(s) protein, which leads to the activation of adenylate cyclase and thereby increases in intracellular cAMP level. However, depending on its cellular location, VIP-R1 is also capable of coupling to additional G proteins such as G(q) protein, thus leading to the activation of phospholipase C and intracellular calcium influx.


Pssm-ID: 320652 [Multi-domain]  Cd Length: 269  Bit Score: 72.91  E-value: 5.92e-14
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 533 VALSSISYVGCSLSVLCLAATLVTFAVLSSVSTIRNqryHIHANLSF-------AVLVAQVLLLISFSMEPGTVP----- 600
Cdd:cd15986     2 IVVKTIYTLGHSVSLIALTTGSTILCLFRKLHCTRN---YIHLNLFFsfilraiSVLVKDDILYSSSNTEHCTVPpslig 78
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 601 CQVLAVLLHYFFLTAFAWMLVEGLHLYSMVIKVFgSEDSKHLYYYGIGWGCPLLICIISISSSMdsYGTSDSCWLALGSG 680
Cdd:cd15986    79 CKVSLVILQYCIMANFYWLLVEGLYLHTLLVVIF-SENRHFIVYLLIGWGIPTVFIIAWIVARI--YLEDTGCWDTNDHS 155
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 681 AIWAFVG-PALLVIVVNIVILVAVTRVISHISTDSYKIHGDPSAFKLTAKAVAVLLPILGTSWVFGVLAVSDRALVFQYM 759
Cdd:cd15986   156 VPWWVIRiPIIISIILNFILFISIIRILLQKLRSPDVGGNDQSQYKRLAKSTLLLIPLFGVHYIVFVYFPDSSSSNYQIF 235
                         250       260       270
                  ....*....|....*....|....*....|.
gi 1907163470 760 FAI-LNSLQGLFIFLFHCLLNSEVRAAFKHK 789
Cdd:cd15986   236 FELcLGSFQGLVVAILYCFLNSEVQGELKRK 266
7tmB2_GPR56 cd15995
orphan adhesion receptor GPR56, member of the class B2 family of seven-transmembrane G ...
535-783 9.89e-14

orphan adhesion receptor GPR56, member of the class B2 family of seven-transmembrane G protein-coupled receptors; GPR56 is an orphan receptor that has been classified as that belongs to the Group VIII of adhesion GPCRs. Other members of the Group VII include orphan GPCRs such as GPR64, GPR97, GPR112, GPR114, and GPR126. GPR56 is involved in the regulation of oligodendrocyte development and myelination in the central nervous system via coupling to G(12/13) proteins, which leads to the activation of RhoA GTPase. The adhesion receptors are characterized by the presence of large N-terminal extracellular domains containing multiple adhesion motifs, which play critical roles in cell-cell adhesion and cell-matrix interactions, that are coupled to a class B seven-transmembrane domain. Furthermore, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR- autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions.


Pssm-ID: 320661  Cd Length: 269  Bit Score: 72.17  E-value: 9.89e-14
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 535 LSSISYVGCSLSVLclAATLVTFAVLSSVSTIRNQRYHIHANLSFAVLVAQVLLLISFSMEP--GTVPCQVLAVLLHYFF 612
Cdd:cd15995     4 LTILTYVGCIISAL--ASVFTIAFYLCSRRKPRDYTIYVHMNLLLAIFLLDTSFLISEPLALtgSEAACRAGGMFLHFSL 81
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 613 LTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYY-GIGWGCPLLICIISISSSMDSYGTS--------------DSCWLAl 677
Cdd:cd15995    82 LACLTWMGIEGYNLYRLVVEVFNTYVPHFLLKLcAVGWGLPIFLVTLIFLVDQDNYGPIilavhrspekvtyaTICWIT- 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 678 gSGAIWAFVGPALLVIVVNIVILVAVTRVISHISTdsyKIHGDPSAFKLTAKAVAVllpILGTSW--VFGVLAVSDRALV 755
Cdd:cd15995   161 -DSLISNITNLGLFSLVFLFNMAMLATMVVEILRL---RPRTHKWSHVLTLLGLSL---VLGIPWalAFFSFASGTFQLV 233
                         250       260
                  ....*....|....*....|....*...
gi 1907163470 756 FQYMFAILNSLQGLFIFLFHCLLNSEVR 783
Cdd:cd15995   234 IVYLFTIINSLQGFLIFLWYWSMVLQAR 261
7tmB1_GHRHR cd15270
growth-hormone-releasing hormone receptor, member of the class B family of seven-transmembrane ...
538-789 1.90e-13

growth-hormone-releasing hormone receptor, member of the class B family of seven-transmembrane G protein-coupled receptors; Growth hormone-releasing hormone receptor (GHRHR) is a member of the group of G protein-coupled receptors for structurally similar peptide hormones that also include secretin, pituitary adenylate cyclase activating polypeptide (PACAP), and vasoactive intestinal peptide. These receptors are classified into the subfamily B1 of class B GRCRs that consists of the classical hormone receptors and have been identified in all the vertebrates, from fishes to mammals, but are not present in plants, fungi, or prokaryotes. For all class B receptors, the large N-terminal extracellular domain plays a critical role in peptide hormone recognition. GHRHR is a specific receptor for the growth hormone-releasing hormone (GHRH) that controls the synthesis and release of growth hormone (GH) from the anterior pituitary somatotrophs. Mutations in the gene encoding GHRHR have been connected to isolated growth hormone deficiency (IGHD), a short-stature condition caused by deficient production of GH or lack of GH action. GHRH is preferentially coupled to a stimulatory G(s) protein, which leads to the activation of adenylate cyclase and thereby increases in intracellular cAMP level. GHRHR is found in mammals as well as zebrafish and chicken, whereas the GHRHR type 2, an ortholog of the GHRHR, has only been identified in ray-finned fish, chicken and Xenopus. Xenopus laevis GHRHR2 has been shown to interact with both endogenous GHRH and PACAP-related peptide (PRP).


Pssm-ID: 320398 [Multi-domain]  Cd Length: 268  Bit Score: 71.37  E-value: 1.90e-13
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 538 ISYVGCSLSVLCLAatlVTFAVLSSVSTIRNQRYHIHANLSFAVLVAQVLLLIS----FSME------PGTVPCQVLAVL 607
Cdd:cd15270     7 IYTVGYSISIVSLC---VAVAILVAFRRLHCPRNYIHIQLFFTFILKAIAVFIKdaalFQEDdtdhcsMSTVLCKVSVVF 83
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 608 LHYFFLTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICIISISSSMdsYGTSDSCW-LALGSGAIWAFV 686
Cdd:cd15270    84 CHYCVMTNFFWLLVEAVYLNCLLASSFPRGKRYFWWLVLLGWGLPTLCTGTWILCKL--YFEDTECWdINNDSPYWWIIK 161
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 687 GPALLVIVVNIVILVAVTRVISHiSTDSYKIHGDPSA-FKLTAKAVAVLLPILGTSW-VFGVLAVSDRALVFQYMFAILN 764
Cdd:cd15270   162 GPIVISVGVNFLLFLNIIRILLK-KLDPRQINFNNSAqYRRLSKSTLLLIPLFGTHYiIFNFLPDYAGLGIRLYLELCLG 240
                         250       260
                  ....*....|....*....|....*
gi 1907163470 765 SLQGLFIFLFHCLLNSEVRAAFKHK 789
Cdd:cd15270   241 SFQGFIVAVLYCFLNQEVQTEISRK 265
GPS smart00303
G-protein-coupled receptor proteolytic site domain; Present in latrophilin/CL-1, sea urchin ...
477-524 7.37e-13

G-protein-coupled receptor proteolytic site domain; Present in latrophilin/CL-1, sea urchin REJ and polycystin.


Pssm-ID: 197639  Cd Length: 49  Bit Score: 63.56  E-value: 7.37e-13
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1907163470  477 LYCAFlnFSSGEGVWSSQGCALTEGNLTYSVCHCTHLTNFAILMQVVP 524
Cdd:smart00303   3 PICVF--WDESSGEWSTRGCELLETNGTHTTCSCNHLTTFAVLMDVPP 48
7tmB1_PTHR cd15265
parathyroid hormone receptors, member of the class B family of seven-transmembrane G ...
541-795 2.71e-12

parathyroid hormone receptors, member of the class B family of seven-transmembrane G protein-coupled receptors; The parathyroid hormone (PTH) receptor family has three subtypes: PTH1R, PTH2R and PTH3R. PTH1R is expressed in bone and kidney and is activated by two polypeptide ligands: PTH, an endocrine hormone that regulates calcium homoeostasis and bone maintenance, and PTH-related peptide (PTHrP), a paracrine factor that regulates endochondral bone development. PTH1R couples predominantly to a G(s)-protein that in turn activates adenylate cyclase thereby producing cAMP, but it can also couple to several G protein subtypes, including G(q/11), G(i/o), and G(12/13), resulting in activation of multiple intracellular signaling pathways. PTH2R is potently activated by tuberoinfundibular peptide-39 (TIP-39), but not by PTHrP. PTH also strongly activates human PTH2R, but only weakly activates rat and zebrafish PTH2Rs, suggesting that TIP-39 is a natural ligand for PTH2R. On the other hand, PTH3R binds and responds to both PTH and PTHrP, but not the TIP-39. Moreover, the PTH3R is more closely related to the PTH1R than PTH2R. PTH1R is found in all vertebrate species, whereas PTH2R is found in mammals and fish, but not in chicken or frog. The PTH3R is found in chicken and fish, but it is absent in mammals. The PTH receptors are members of the B1 (or secretin-like) subfamily of class B GPCRs, which include receptors for polypeptide hormones of 27-141 amino-acid residues such as secretin, glucagon, glucagon-like peptide (GLP), and calcitonin gene-related peptide. These receptors contain the large N-terminal extracellular domain (ECD), which plays a critical role in hormone recognition by binding to the C-terminal portion of the peptide. On the other hand, the N-terminal segment of the hormone induces receptor activation by interacting with the receptor transmembrane domains and connecting extracellular loops, triggering intracellular signaling pathways.


Pssm-ID: 320393 [Multi-domain]  Cd Length: 289  Bit Score: 68.17  E-value: 2.71e-12
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 541 VGCSLSvlcLAATLVTFAVLSSVSTIRNQRYHIHANL--SF-----------AVL--VAQVLLLISFSMEPG-------- 597
Cdd:cd15265    10 VGYSIS---LVSLTVAVFILGYFRRLHCTRNYIHMHLfvSFmlravsifvkdAVLysGSGLDELERPSMEDLksiveapp 86
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 598 -----TVPCQVLAVLLHYFFLTAFAWMLVEGLHLYSMVIKVFGSeDSKHLYYYG-IGWGCPLLICIISISSSMDSYGTsd 671
Cdd:cd15265    87 vdksqYVGCKVAVTLFLYFLATNYYWILVEGLYLHSLIFMAFFS-DKKYLWGFTlIGWGFPAVFVIPWASVRATLADT-- 163
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 672 SCWLALGSGAIWAFVGPALLVIVVNIVILVAVTRVISHISTDSYKIHGDPS-AFKLTAKAVAVLLPILGTSW-VFGVLAV 749
Cdd:cd15265   164 RCWDLSAGNYKWIYQVPILAAIVVNFILFLNIVRVLATKLRETNAGRCDTRqQYRKLAKSTLVLIPLFGVHYiVFMGMPY 243
                         250       260       270       280
                  ....*....|....*....|....*....|....*....|....*....
gi 1907163470 750 SDRALVFQ--YMFAIL-NSLQGLFIFLFHCLLNSEVRAAFKhktKVWSL 795
Cdd:cd15265   244 TEVGLLWQirMHYELFfNSFQGFFVAIIYCFCNGEVQAEIK---KRWER 289
7tmB1_secretin cd15275
secretin receptor, member of the class B family of seven-transmembrane G protein-coupled ...
541-783 3.52e-12

secretin receptor, member of the class B family of seven-transmembrane G protein-coupled receptors; Secretin receptor is a member of the group of G protein-coupled receptors for structurally similar peptide hormones that also include vasoactive intestinal peptide (VIP), growth-hormone-releasing hormone (GHRH), and pituitary adenylate cyclase activating polypeptide (PACAP). These receptors are classified into the subfamily B1 of class B GRCRs that consists of the classical hormone receptors, and have been identified in all the vertebrates, from fishes to mammals, but are not present in plants, fungi, or prokaryotes. For all class B receptors, the large N-terminal extracellular domain plays a critical role in peptide hormone recognition. Secretin, a polypeptide secreted by entero-endocrine S cells in the small intestine, is involved in maintaining body fluid balance. This polypeptide regulates the secretion of bile and bicarbonate into the duodenum from the pancreatic and biliary ducts, as well as regulates the duodenal pH by the control of gastric acid secretion. Studies with secretin receptor-null mice indicate that secretin plays a role in regulating renal water reabsorption. Secretin mediates its biological actions by elevating intracellular cAMP via G protein-coupled secretin receptor, which is expressed in the brain, pancreas, stomach, kidney, and liver.


Pssm-ID: 320403 [Multi-domain]  Cd Length: 271  Bit Score: 67.84  E-value: 3.52e-12
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 541 VGCSLSVLCLAATLVTFAVLSSVSTIRNQrYHIHANLSF-----AVLVAQVLLLIS---FSMEPGTVPCQVLAVLLHYFF 612
Cdd:cd15275    10 VGYSVSLVSLAIALAILCSFRRLHCTRNY-IHMQLFLSFilraiSIFIKDAVLFSSeddNHCDIYTVGCKVAMVFSNYCI 88
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 613 LTAFAWMLVEGLHLYSMVIKVFGSEdSKHLYYY-GIGWGCPLLiciisissSMDSYGTS------DSCWLALGSGAIWAF 685
Cdd:cd15275    89 MANYSWLLVEGLYLHSLLSISFFSE-RKHLWWYiALGWGSPLI--------FIISWAIArylhenEGCWDTRRNAWIWWI 159
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 686 V-GPALLVIVVNIVILVAVTRVISHISTDSYKIHGDPSAFKLTAKAVAVLLPILGTSWV---FGVLAVSDRALVFQYMFA 761
Cdd:cd15275   160 IrGPVILSIFVNFILFLNILRILMRKLRAPDMRGNEFSQYKRLAKSTLLLIPLFGLHYIlfaFFPEDVSSGTMEIWLFFE 239
                         250       260
                  ....*....|....*....|...
gi 1907163470 762 I-LNSLQGLFIFLFHCLLNSEVR 783
Cdd:cd15275   240 LaLGSFQGFVVAVLYCFLNGEVQ 262
Laminin_G_3 pfam13385
Concanavalin A-like lectin/glucanases superfamily; This domain belongs to the Concanavalin ...
139-213 3.92e-12

Concanavalin A-like lectin/glucanases superfamily; This domain belongs to the Concanavalin A-like lectin/glucanases superfamily.


Pssm-ID: 463865 [Multi-domain]  Cd Length: 151  Bit Score: 64.71  E-value: 3.92e-12
                          10        20        30        40        50        60        70
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 1907163470 139 WTHVLFTWkSKEGLKVYVNGTL--STSDPSGKVSHTYGdphvNLVIGSEQDQTKRYeNGAFDEFIIWERALTPDEIK 213
Cdd:pfam13385  81 WTHVAVTY-DGGTLRLYVNGVLvgSSTLTGGPPPGTGG----PLYIGRSPGGDDYF-NGLIDEVRIYDRALSAAEIA 151
GPS pfam01825
GPCR proteolysis site, GPS, motif; The GPS motif is found in GPCRs, and is the site for ...
479-519 6.68e-12

GPCR proteolysis site, GPS, motif; The GPS motif is found in GPCRs, and is the site for auto-proteolysis, so is thus named, GPS. The GPS motif is a conserved sequence of ~40 amino acids containing canonical cysteine and tryptophan residues, and is the most highly conserved part of the domain. In most, if not all, cell-adhesion GPCRs these undergo autoproteolysis in the GPS between a conserved aliphatic residue (usually a leucine) and a threonine, serine, or cysteine residue. In higher eukaryotes this motif is found embedded in the C-terminal beta-stranded part of a GAIN domain - GPCR-Autoproteolysis INducing (GAIN). The GAIN-GPS domain adopts a fold in which the GPS motif, at the C-terminus, forms five beta-strands that are tightly integrated into the overall GAIN domain. The GPS motif, evolutionarily conserved from tetrahymena to mammals, is the only extracellular domain shared by all human cell-adhesion GPCRs and PKD proteins, and is the locus of multiple human disease mutations. The GAIN-GPS domain is both necessary and sufficient functionally for autoproteolysis, suggesting an autoproteolytic mechanism whereby the overall GAIN domain fine-tunes the chemical environment in the GPS to catalyze peptide bond hydrolysis. In the cell-adhesion GPCRs and PKD proteins, the GPS motif is always located at the end of their long N-terminal extracellular regions, immediately before the first transmembrane helix of the respective protein.


Pssm-ID: 460350  Cd Length: 44  Bit Score: 60.78  E-value: 6.68e-12
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|..
gi 1907163470 479 CAFLNFS-SGEGVWSSQGCALTEGNLTYSVCHCTHLTNFAIL 519
Cdd:pfam01825   3 CVFWDFTnSTTGRWSTEGCTTVSLNDTHTVCSCNHLTSFAVL 44
7tmB1_PTH1R cd15984
parathyroid hormone 1 receptor, member of the class B family of seven-transmembrane G ...
535-794 2.21e-11

parathyroid hormone 1 receptor, member of the class B family of seven-transmembrane G protein-coupled receptors; The parathyroid hormone (PTH) receptor family has three subtypes: PTH1R, PTH2R and PTH3R. PTH1R is expressed in bone and kidney and is activated by two polypeptide ligands: PTH, an endocrine hormone that regulates calcium homoeostasis and bone maintenance, and PTH-related peptide (PTHrP), a paracrine factor that regulates endochondral bone development. PTH1R couples predominantly to G(s)-protein that in turn activates adenylate cyclase thereby producing cAMP, but it can also couple to several G protein subtypes, including G(q/11), G(i/o), and G(12/13), resulting in activation of multiple intracellular signaling pathways. PTH1R is found in all vertebrate species, whereas PTH2R is found in mammals and fish, but not in chicken or frog. PTH3R is found in chicken and fish, but it is absent in mammals. The PTH receptors are members of the B1 (or secretin-like) subfamily of class B GPCRs, which include receptors for polypeptide hormones of 27-141 amino-acid residues such as secretin, glucagon, glucagon-like peptide (GLP), and calcitonin gene-related peptide. These receptors contain the large N-terminal extracellular domain (ECD), which plays a critical role in hormone recognition by binding to the C-terminal portion of the peptide. On the other hand, the N-terminal segment of the hormone induces receptor activation by interacting with the receptor transmembrane domains and connecting extracellular loops, triggering intracellular signaling pathways.


Pssm-ID: 320650 [Multi-domain]  Cd Length: 290  Bit Score: 65.74  E-value: 2.21e-11
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 535 LSSISYVGCSLSVLCLAATLVTFAVLSSVSTIRNQrYHIHANLSF-----AVLVAQVLLLISFSMEP------------- 596
Cdd:cd15984     4 LYLIYTVGYSISLGSLTVAVLILGYFRRLHCTRNY-IHMHLFLSFmlravSIFVKDAVLYSGSALEEmeriteedlksit 82
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 597 --------GTVPCQVLAVLLHYFFLTAFAWMLVEGLHLYSMVIKVFGSeDSKHLYYYG-IGWGCPLLICIISISSSMDSY 667
Cdd:cd15984    83 eappadkaQFVGCKVAVTFFLYFLATNYYWILVEGLYLHSLIFMAFFS-EKKYLWGFTlFGWGLPAVFVTIWASVRATLA 161
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 668 GTsdSCWLALGSGAIWAFVGPALLVIVVNIVILVAVTRVISHISTDSYKIHGDP-SAFKLTAKAVAVLLPILGTSW-VFG 745
Cdd:cd15984   162 DT--GCWDLSAGNLKWIIQVPILAAIVVNFILFINIVRVLATKLRETNAGRCDTrQQYRKLLKSTLVLMPLFGVHYiVFM 239
                         250       260       270       280       290
                  ....*....|....*....|....*....|....*....|....*....|...
gi 1907163470 746 VLAVSDRALVF---QYMFAIL-NSLQGLFIFLFHCLLNSEVRAAFKhktKVWS 794
Cdd:cd15984   240 AMPYTEVSGILwqvQMHYEMLfNSFQGFFVAIIYCFCNGEVQAEIK---KSWS 289
7tmB1_PTH2R cd15982
parathyroid hormone 2 receptor, member of the class B family of seven-transmembrane G ...
599-794 3.92e-11

parathyroid hormone 2 receptor, member of the class B family of seven-transmembrane G protein-coupled receptors; The parathyroid hormone 2 receptor (PTH2R), one of the three subtypes of PTH receptor family, is found in mammals and fish, but not in chicken or frog. PTH2R is potently activated by tuberoinfundibular peptide-39 (TIP-39) but not by PTH-related peptide (PTHrP), a paracrine factor that regulates endochondral bone development. PTH, an endocrine hormone that regulates calcium homoeostasis and bone maintenance, strongly activates human PTH2R, but only weakly activates rat and zebrafish PTH2Rs. These results suggest that TIP-39 is a natural ligand for PTH2R. Conversely, PTH1R is activated by PTH and PTHrP, but not by TIP-39. The PTH family receptors are members of the B1 (or secretin-like) subfamily of class B GPCRs, which include receptors for polypeptide hormones of 27-141 amino-acid residues such as secretin, glucagon, glucagon-like peptide (GLP), and calcitonin gene-related peptide. These receptors contain the large N-terminal extracellular domain (ECD), which plays a critical role in hormone recognition by binding to the C-terminal portion of the peptide. On the other hand, the N-terminal segment of the hormone induces receptor activation by interacting with the receptor transmembrane domains and connecting extracellular loops, triggering intracellular signaling pathways.


Pssm-ID: 320648 [Multi-domain]  Cd Length: 289  Bit Score: 64.96  E-value: 3.92e-11
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 599 VPCQVLAVLLHYFFLTAFAWMLVEGLHLYSMVIKVFGSeDSKHLY-YYGIGWGCPllICIISISSSMDSYGTSDSCWlAL 677
Cdd:cd15982    93 VGCKIAVVMFIYFLATNYYWILVEGLYLHSLIFVAFFS-DTKYLWgFTLIGWGFP--AVFVAAWAVVRATLADARCW-EL 168
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 678 GSGAI-WAFVGPALLVIVVNIVILVAVTRVISHISTDSYKIHGDP-SAFKLTAKAVAVLLPILGTSW-VFGVLAVSDRAL 754
Cdd:cd15982   169 SAGDIkWIYQAPILAAIGLNFILFLNTVRVLATKIWETNAVGYDTrKQYRKLAKSTLVLVLVFGVHYiVFVCLPHTFTGL 248
                         170       180       190       200
                  ....*....|....*....|....*....|....*....|...
gi 1907163470 755 VFQ---YMFAILNSLQGLFIFLFHCLLNSEVRAAFKhktKVWS 794
Cdd:cd15982   249 GWEirmHCELFFNSFQGFFVSIIYCYCNGEVQTEIK---KTWT 288
7tmB1_PTH3R cd15983
parathyroid hormone 3 receptor, member of the class B family of seven-transmembrane G ...
541-793 5.78e-11

parathyroid hormone 3 receptor, member of the class B family of seven-transmembrane G protein-coupled receptors; The parathyroid hormone 3 receptor (PTH3R), one of the three subtypes of PTH receptor family, is found in chicken and fish, but it is absent in mammals. On the other hand, the PTH1R is found in all vertebrate species, whereas PTH2R is found in mammals and fish, but not in chicken or frog. PTH1R is activated by two polypeptide ligands: PTH, an endocrine hormone that regulates calcium homoeostasis and bone maintenance, and PTH-related peptide (PTHrP), a paracrine factor that regulates endochondral bone development. PTH2R is potently activated by tuberoinfundibular peptide-39 (TIP-39), but not by PTHrP. PTH also strongly activates human PTH2R, but only weakly activates rat and zebrafish PTH2Rs, suggesting that TIP-39 is a natural ligand for PTH2R. Conversely, PTH3R binds and responds to both PTH and PTHrP, but not the TIP-39. The PTH family receptors are members of the B1 (or secretin-like) subfamily of class B GPCRs, which include receptors for polypeptide hormones of 27-141 amino-acid residues such as secretin, glucagon, glucagon-like peptide (GLP), and calcitonin gene-related peptide. These receptors contain the large N-terminal extracellular domain (ECD), which plays a critical role in hormone recognition by binding to the C-terminal portion of the peptide. On the other hand, the N-terminal segment of the hormone induces receptor activation by interacting with the receptor transmembrane domains and connecting extracellular loops, triggering intracellular signaling pathways.


Pssm-ID: 320649 [Multi-domain]  Cd Length: 285  Bit Score: 64.17  E-value: 5.78e-11
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 541 VGCSLSvlcLAATLVTFAVLSSVSTIRNQRYHIHANL--SFAVLVAQVLL-----------------LISFSMEPGT--- 598
Cdd:cd15983    10 IGYSIS---LAALLVAVCILCYFKRLHCTRNYIHIHLfaSFICRAGSIFVkdavlysgtnegealdeKIEFGLSPGTrlq 86
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 599 -VPCQVLAVLLHYFFLTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICIISISSSMDSYGTsdSCWLAL 677
Cdd:cd15983    87 wVGCKVTVTLFLYFLATNHYWILVEGLYLHSLIFMAFLSDKNYLWALTIIGWGLPAVFVSVWASVRVSLADT--QCWDLS 164
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 678 GSGAIWAFVGPALLVIVVNIVILVAVTRVISHISTDSYKIHGDP-SAFKLTAKAVAVLLPILGTSWV-FGVLAVSD-RAL 754
Cdd:cd15983   165 AGNLKWIYQVPILAAILVNFFLFLNIVRVLASKLWETNTGKLDPrQQYRKLLKSTLVLMPLFGVHYVlFMAMPYTDvTGL 244
                         250       260       270       280
                  ....*....|....*....|....*....|....*....|..
gi 1907163470 755 VFQYMF---AILNSLQGLFIFLFHCLLNSEVRAAFKhktKVW 793
Cdd:cd15983   245 LWQIQMhyeMLFNSSQGFFVAFIYCFCNGEVQAEIK---KAW 283
7tmB1_GCGR cd15267
glucagon receptor, member of the class B family of seven-transmembrane G protein-coupled ...
541-784 1.94e-10

glucagon receptor, member of the class B family of seven-transmembrane G protein-coupled receptors; Glucagon receptor (GCGR) is a member of the glucagon receptor family of G protein-coupled receptors, which also includes glucagon-like peptide-1 receptor (GLP1R) and GLP2R. GCGR is activated by glucagon, which is derived from the large proglucagon precursor. GCGR regulates blood glucose levels by control of hepatic glycogenolysis and gluconeogenesis and by regulation of insulin secretion from the pancreatic beta-cells. Activation of GLP1R stimulates glucose-dependent insulin secretion from pancreatic beta cells, whereas activation of GLP2R stimulates intestinal epithelial proliferation and increases villus height in the small intestine. GCGR belongs to the B1 (or secretin-like) subfamily of class B GPCRs, which includes receptors for polypeptide hormones of 27-141 amino-acid residues such as secretin, calcitonin gene-related peptide, parathyroid hormone (PTH), and corticotropin-releasing factor. These receptors contain the large N-terminal extracellular domain (ECD), which plays a critical role in hormone recognition by binding to the C-terminal portion of the peptide. On the other hand, the N-terminal segment of the hormone induces receptor activation by interacting with the receptor transmembrane domains and connecting extracellular loops, triggering intracellular signaling pathways. All members of the B1 subfamily preferentially couple to G proteins of G(s) family, which positively stimulate adenylate cyclase, leading to increased intracellular cAMP formation and calcium influx. However, depending on their cellular location, GCGR and GLP receptors can activate multiple G proteins, which can in turn stimulate different second messenger pathways.


Pssm-ID: 320395 [Multi-domain]  Cd Length: 281  Bit Score: 62.53  E-value: 1.94e-10
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 541 VGCSLSvlcLAATLVTFAVLSSVSTIRNQRYHIHANL-------SFAVLVAQVLLLISFSMEPGT------------VPC 601
Cdd:cd15267    12 VGYSLS---LGALLLALAILGGFSKLHCMRNAIHMNLfasfilkASSVLVIDGLLRTRYSQKIEDdlsstwlsdeavAGC 88
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 602 QVLAVLLHYFFLTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLICIISISSSMdSYGTSDsCWLALGSGA 681
Cdd:cd15267    89 RVAAVFMQYGIVANYCWLLVEGIYLHNLLVLAVFPERSYFSLYLCIGWGAPALFVVPWVVVKC-LYENVQ-CWTSNDNMG 166
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 682 IWAFVgpALLVIVVNIVILVAVTRVISHISTD--SYKIHGDPSAFKLtAKAVAVLLPILGTSWVFGVLAVSDRA-----L 754
Cdd:cd15267   167 FWWIL--RFPVFLAILINFFIFVRIIQILVSKlrARQMHYTDYKFRL-AKSTLTLIPLLGIHEVVFAFVTDEHAqgtlrS 243
                         250       260       270
                  ....*....|....*....|....*....|
gi 1907163470 755 VFQYMFAILNSLQGLFIFLFHCLLNSEVRA 784
Cdd:cd15267   244 AKLFFDLFLSSFQGLLVAVLYCFLNKEVQS 273
7tmB2_GPR124 cd15998
G protein-coupled receptor 124, member of the class B2 family of seven-transmembrane G ...
535-787 6.61e-10

G protein-coupled receptor 124, member of the class B2 family of seven-transmembrane G protein-coupled receptors; GPR124 is an orphan receptor that has been classified as that belongs to the group III of adhesion GPCRs, which also includes orphan GPR123 and GPR125. GPR124, also known as tumor endothelial marker 5 (TEM5), is highly expressed in tumor vessels and in the vasculature of the developing embryo. GPR124 is essentially required for proper angiogenic sprouting into neural tissue, CNS-specific vascularization, and formation of the blood-brain barrier. GPR124 interacts with the PDZ domain of DLG1 (discs large homolog 1) through its PDZ-binding motif. Recently, studies of double-knockout mice showed that GPR124 functions as a co-activator of Wnt7a/Wnt7b-dependent beta-catenin signaling in brain endothelium. Moreover, WNT7-stimulated beta-catenin signaling is regulated by GPR124's intracellular PDZ binding motif and leucine-rich repeats (LRR) in its N-terminal extracellular domain. The adhesion receptors are characterized by the presence of large N-terminal extracellular domains containing multiple adhesion motifs, which play critical roles in cell-cell adhesion and cell-matrix interactions, that are coupled to a class B seven-transmembrane domain. Furthermore, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR- autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions.


Pssm-ID: 320664 [Multi-domain]  Cd Length: 268  Bit Score: 60.74  E-value: 6.61e-10
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 535 LSSISYVGCSLSVLCLAATLVTFAVLSSVSTIRNQRYHIHANLSFAVLVAQVLLLISFSMEPGTVPCQVLAVLLHYFFLT 614
Cdd:cd15998     4 LHPVVYPCTALLLLCLFSTIITYILNHSSIHVSRKGWHMLLNLCFHIAMTSAVFAGGITLTNYQMVCQAVGITLHYSSLS 83
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 615 AFAWMLVEGLHLYSMVI-KVFGSED--------SKHLYYYGIGWGCPLLICIISISSSMDSY-GTSDSCWLaLGSGAIWA 684
Cdd:cd15998    84 TLLWMGVKARVLHKELTwRAPPPQEgdpalptpRPMLRFYLIAGGIPLIICGITAAVNIHNYrDHSPYCWL-VWRPSLGA 162
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 685 FVGPALLVIVVNIVILVAVTRVISHISTDSYKIHgdpsAFKLTAKAVAVLLPILGTSWVFGVLAVSDRAL---VFQYMFA 761
Cdd:cd15998   163 FYIPVALILLVTWIYFLCAGLHLRGPSADGDSVY----SPGVQLGALVTTHFLYLAMWACGALAVSQRWLprvVCSCLYG 238
                         250       260
                  ....*....|....*....|....*.
gi 1907163470 762 ILNSLQGLFIFLFHCLLNSEVRAAFK 787
Cdd:cd15998   239 VAASALGLFVFTHHCARRRDVRASWR 264
7tmB1_GLP1R cd15268
glucagon-like peptide-1 receptor, member of the class B family of seven-transmembrane G ...
535-793 5.36e-09

glucagon-like peptide-1 receptor, member of the class B family of seven-transmembrane G protein-coupled receptors; Glucagon-like peptide-1 receptor (GLP1R) is a member of the glucagon receptor family of G protein-coupled receptors, which also includes glucagon receptor and GLP2R. GLP1R is activated by glucagon-like peptide 1 (GLP1), which is derived from the large proglucagon precursor. Activation of GLP1R stimulates glucose-dependent insulin secretion from pancreatic beta cells, whereas activation of GLP2R stimulates intestinal epithelial proliferation and increases villus height in the small intestine. GCGR regulates blood glucose levels by control of hepatic glycogenolysis and gluconeogenesis and by regulation of insulin secretion from the pancreatic beta-cells. Receptors in this group belong to the B1 (or secretin-like) subfamily of class B GPCRs, which includes receptors for polypeptide hormones of 27-141 amino-acid residues such as secretin, calcitonin gene-related peptide, parathyroid hormone (PTH), and corticotropin-releasing factor. These receptors contain the large N-terminal extracellular domain (ECD), which plays a critical role in hormone recognition by binding to the C-terminal portion of the peptide. On the other hand, the N-terminal segment of the hormone induces receptor activation by interacting with the receptor transmembrane domains and connecting extracellular loops, triggering intracellular signaling pathways. All members of the B1 subfamily preferentially couple to G proteins of G(s) family, which positively stimulate adenylate cyclase, leading to increased intracellular cAMP formation and calcium influx. However, depending on their cellular location, GCGR and GLP receptors can activate multiple G proteins, which can in turn stimulate different second messenger pathways.


Pssm-ID: 341342 [Multi-domain]  Cd Length: 279  Bit Score: 58.04  E-value: 5.36e-09
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 535 LSSISYVGCSLSvlcLAATLVTFAVLSSVSTIRNQRYHIHANL--SFAVLVAQVLL--------------------LISF 592
Cdd:cd15268     4 LYIIYTVGYALS---FSALVIASAILLGFRHLHCTRNYIHLNLfaSFILRALSVFIkdaalkwmystaaqqhqwdgLLSY 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 593 SmepGTVPCQVLAVLLHYFFLTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLLicIISISSSMDSYGTSDS 672
Cdd:cd15268    81 Q---DSLSCRLVFLLMQYCVAANYYWLLVEGVYLYTLLAFSVFSEQRIFRLYLSIGWGVPLL--FVIPWGIVKYLYEDEG 155
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 673 CWLALGSGAIWAFVgpALLVIVVNIVILVAVTRVISHISTdsyKIHGD-----PSAFKLtAKAVAVLLPILGTSWVFGVL 747
Cdd:cd15268   156 CWTRNSNMNYWLII--RLPILFAIGVNFLIFIRVICIVVS---KLKANlmcktDIKCRL-AKSTLTLIPLLGTHEVIFAF 229
                         250       260       270       280       290
                  ....*....|....*....|....*....|....*....|....*....|.
gi 1907163470 748 AVSDRA---LVFQYMFAILN--SLQGLFIFLFHCLLNSEVRAAFKhktKVW 793
Cdd:cd15268   230 VMDEHArgtLRFVKLFTELSftSFQGLMVAILYCFVNNEVQMEFR---KSW 277
PTX cd00152
Pentraxins are plasma proteins characterized by their pentameric discoid assembly and their ...
129-216 2.53e-08

Pentraxins are plasma proteins characterized by their pentameric discoid assembly and their Ca2+ dependent ligand binding, such as Serum amyloid P component (SAP) and C-reactive Protein (CRP), which are cytokine-inducible acute-phase proteins implicated in innate immunity. CRP binds to ligands containing phosphocholine, SAP binds to amyloid fibrils, DNA, chromatin, fibronectin, C4-binding proteins and glycosaminoglycans. "Long" pentraxins have N-terminal extensions to the common pentraxin domain; one group, the neuronal pentraxins, may be involved in synapse formation and remodeling, and they may also be able to form heteromultimers.


Pssm-ID: 238086  Cd Length: 201  Bit Score: 54.97  E-value: 2.53e-08
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 129 KATFNPPG--PYWTHVLFTWKSKEGL-KVYVNGTLSTSDpSGKVSHTYGdPHVNLVIGSEQDQTkryeNGAFDE------ 199
Cdd:cd00152    80 EVTFKVPEsdGAWHHICVTWESTSGIaELWVNGKLSVRK-SLKKGYTVG-PGGSIILGQEQDSY----GGGFDAtqsfvg 153
                          90       100
                  ....*....|....*....|.
gi 1907163470 200 ----FIIWERALTPDEIKMYF 216
Cdd:cd00152   154 eisdVNMWDSVLSPEEIKNVY 174
PTX smart00159
Pentraxin / C-reactive protein / pentaxin family; This family form a doscoid pentameric ...
139-219 1.54e-07

Pentraxin / C-reactive protein / pentaxin family; This family form a doscoid pentameric structure. Human serum amyloid P demonstrates calcium-mediated ligand-binding.


Pssm-ID: 128463  Cd Length: 206  Bit Score: 52.65  E-value: 1.54e-07
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470  139 WTHVLFTWKSKEGL-KVYVNGTLSTSDpSGKVSHTYGdPHVNLVIGSEQDQTkryeNGAFD----------EFIIWERAL 207
Cdd:smart00159  92 WHHICTTWESSSGIaELWVDGKPGVRK-GLAKGYTVK-PGGSIILGQEQDSY----GGGFDatqsfvgeigDLNMWDSVL 165
                           90
                   ....*....|..
gi 1907163470  208 TPDEIKMYFTAA 219
Cdd:smart00159 166 SPEEIKSVYKGS 177
7tmB2_GPR125 cd15999
G protein-coupled receptor 125, member of the class B2 family of seven-transmembrane G ...
535-689 4.45e-06

G protein-coupled receptor 125, member of the class B2 family of seven-transmembrane G protein-coupled receptors; GPR125 is an orphan receptor that has been classified as that belongs to the group III of adhesion GPCRs, which also includes orphan receptors GPR123 and GPR124. GPR125 directly interacts with dishevelled (Dvl) via its intracellular C-terminus, and together, GPR125 and Dvl recruit a subset of planar cell polarity (PCP) components into membrane subdomains, a prerequisite for activation of Wnt/PCP signaling. Thus, GPR125 influences the noncanonical WNT/PCP pathway, which does not involve beta-catenin, through interacting with and modulating the distribution of Dvl. The adhesion receptors are characterized by the presence of large N-terminal extracellular domains containing multiple adhesion motifs, which play critical roles in cell-cell adhesion and cell-matrix interactions, that are coupled to a class B seven-transmembrane domain. Furthermore, almost all adhesion receptors, except GPR123, contain an evolutionarily conserved GPCR- autoproteolysis inducing (GAIN) domain that undergoes autoproteolytic processing at the GPCR proteolysis site (GPS) motif located immediately N-terminal to the first transmembrane region, to generate N- and C-terminal fragments (NTF and CTF), which may serve important biological functions.


Pssm-ID: 320665  Cd Length: 312  Bit Score: 49.48  E-value: 4.45e-06
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 535 LSSISYVGCSLSVLCLAATLVTFAVLSSVSTIRNQRYHIHANLSFAVLVAQVLLLISFSMEPGTVPCQVLAVLLHYFFLT 614
Cdd:cd15999     4 LHPVVYATAVVLLLCLLTIIVSYIYHHSLVRISRKSWHMLVNLCFHIFLTCAVFVGGINQTRNASVCQAVGIILHYSTLA 83
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 615 AFAWMLVEGLHLYSMVI-KVFGSEDSKH--------LYYYGIGWGCPLLICIISISSSMDSYGTSDS---CWLALgSGAI 682
Cdd:cd15999    84 TVLWVGVTARNIYKQVTrKAKRCQDPDEppppprpmLRFYLIGGGIPIIVCGITAAANIKNYGSRPNapyCWMAW-EPSL 162

                  ....*..
gi 1907163470 683 WAFVGPA 689
Cdd:cd15999   163 GAFYGPA 169
7tmF_FZD3_FZD6-like cd15910
class F frizzled subfamilies 3, 6 and related proteins; member of 7-transmembrane G ...
535-652 4.83e-04

class F frizzled subfamilies 3, 6 and related proteins; member of 7-transmembrane G protein-coupled receptors; This group includes subfamilies 3 and 6 of the frizzled (FZD) family of seven transmembrane-spanning proteins, which constitute a novel and separate class of GPCRs, and their closely related proteins. This class F protein family consists of 10 isoforms (FZD1-10) in mammals. The FZDs are activated by the wingless/int-1 (WNT) family of secreted lipoglycoproteins and preferentially couple to stimulatory G proteins of the Gs family, which activate adenylate cyclase, but can also couple to G proteins of the Gi/Gq families. In the WNT/beta-catenin signaling pathway, the WNT ligand binds to FZD and a lipoprotein receptor-related protein (LRP) co-receptor. This leads to the stabilization and translocation of beta-catenin to the nucleus, where it induces the activation of TCF/LEF family transcription factors. The conserved cytoplasmic motif of FZD, Lys-Thr-X-X-X-Trp, is required for activation of the WNT/beta-catenin pathway, and for membrane localization and phosphorylation of Dsh (dishevelled) protein, a key component of the WNT pathway that relays the WNT signals from the activated receptor to downstream effector proteins. The WNT pathway plays a critical role in many developmental processes, such as cell-fate determination, cell proliferation, neural patterning, stem cell renewal, tissue homeostasis and repair, and tumorigenesis, among many others.


Pssm-ID: 320576  Cd Length: 321  Bit Score: 43.30  E-value: 4.83e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1907163470 535 LSSISYVGCSLSVLCLAATLVTFavLSSVSTIRNQRYHIHANLSFAV--LVAQVLLLISFSMEPGTV------------- 599
Cdd:cd15910     8 LMFARYFIGVVSILCLLATLFTF--LTFLIDVNRFRYPERPIIFYAVcyFVVSLIFFVGFLLGDDVAcnhaimdenngat 85
                          90       100       110       120       130       140
                  ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1907163470 600 --------PCQVLAVLLHYFFLTAFAWMLVEGLHLYSMVIKVFGSE--DSKHLYYYGIGWGCP 652
Cdd:cd15910    86 vvegsrnkACTILFMILYFFTMAGTVWWVILTITWFLAAGFKWGSEaiEKKALYFHALAWGIP 148
7tmE_cAMP_R_Slime_mold cd14940
slime mold cyclic AMP receptor, member of the class E family of seven-transmembrane G ...
578-654 1.23e-03

slime mold cyclic AMP receptor, member of the class E family of seven-transmembrane G protein-coupled receptors; This family represents the class E of seven-transmembrane G-protein coupled receptors found in soil-living amoebas, commonly referred to as slime molds. The class E family includes cAMP receptors (cAR1-4) and cAMP receptors-like proteins (CrlA-C) from Dictyostelium discoideum, and their highly homologous cAMP receptors (TasA and TasB) from Polysphondylium pallidum. So far, four subtypes of cAMP receptors (cAR1-4) have been identified that play an essential role in the detection and transmit of the periodic extracellular cAMP waves that regulate chemotactic cell movement during Dictyostelium development, from the unicellular amoeba aggregate into many multicellular slugs and then differentiate into a sporocarp, a fruiting body with cells specialized for different functions. These four subtypes differ in their expression levels and patterns during development. cAR1 is high-affinity receptor that is the first one to be expressed highly during early aggregation and continues to be expressed at low levels during later developmental stages. cAR1 detects extracellular cAMP and is coupled to G-alpha2 protein. Cells lacking cAR1 fail to aggregate, demonstrating that cAR1 is responsible for aggregation. During later aggregation the high-affinity cAR3 receptor is expressed at low levels. Nonetheless, cells lacking cAR3 do not show an obviously altered pattern of development and are still able to aggregate into fruiting bodies. In contrast, cAR2 and cAR4 are low affinity receptors expressed predominantly after aggregation in pre-stalk cells. cAR2 is essential for normal tip formation and deletion of the receptor arrests development at the mound stage. On the other hand, CAR4 regulates axial patterning and cellular differentiation, and deletion of the receptor results in defects during culmination. Furthermore, three cAMP receptor-like proteins (CrlA-C) were identified in Dictyostelium that show limited sequence similarity to the cAMP receptors. Of these CrlA is thought to be required for normal cell growth and tip formation in developing aggregates.


Pssm-ID: 320094 [Multi-domain]  Cd Length: 256  Bit Score: 41.57  E-value: 1.23e-03
                          10        20        30        40        50        60        70
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 1907163470 578 SFAVLVAQVLLLISFSMEPGTVPCQVLAVLLHYFFLTAFAWMLVEGLHLYSMVIKVFGSEDSKHLYYYGIGWGCPLL 654
Cdd:cd14940    45 SLLKDIIYTMLTLTQSARPDGFLCYLYAIVITYGSLSCWLWTLCLAISIYLLIVKREPEPEKFEKYYHFVCWGLPLI 121
 
Blast search parameters
Data Source: Precalculated data, version = cdd.v.3.21
Preset Options:Database: CDSEARCH/cdd   Low complexity filter: no  Composition Based Adjustment: yes   E-value threshold: 0.01

References:

  • Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
  • Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
  • Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
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