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Conserved domains on  [gi|1034602165|ref|XP_016880854|]
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CDP-diacylglycerol--glycerol-3-phosphate 3-phosphatidyltransferase, mitochondrial isoform X8 [Homo sapiens]

Protein Classification

CDP-diacylglycerol--glycerol-3-phosphate 3-phosphatidyltransferase( domain architecture ID 10173612)

CDP-diacylglycerol--glycerol-3-phosphate 3-phosphatidyltransferase catalyzes the committed step in the biosynthesis of acidic phospholipids

Graphical summary

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List of domain hits

 Name Accession Description Interval E-value
PLDc_PGS1_euk_2 cd09137
Catalytic domain, repeat 2, of eukaryotic phosphatidylglycerophosphate synthases; Catalytic ...
 214-373 1.65e-92

Catalytic domain, repeat 2, of eukaryotic phosphatidylglycerophosphate synthases; Catalytic domain, repeat 2, of eukaryotic phosphatidylglycerophosphate (PGP) synthases, also called CDP-diacylglycerol--glycerol-3-phosphate 3-phosphatidyltransferase (EC 2.7.8.5). Eukaryotic PGP synthases are different and unrelated to prokaryotic PGP synthases and yeast phosphatidylserine synthase. They catalyze the synthesis of PGP from CDP-diacylglycerol and sn-glycerol 3-phosphate, the committed and rate-limiting step in the biosynthesis of cardiolipin (CL), which is an essential component of many mitochondrial functions in eukaryotes. Members in this subfamily all have two HKD motifs (H-x-K-x(4)-D, where x represents any amino acid residue) that characterizes the phospholipase D (PLD) superfamily. They may utilize a common two-step ping-pong catalytic mechanism involving a substrate-enzyme intermediate to cleave phosphodiester bonds. The two motifs are suggested to constitute the active site involved in the phosphatidyl group transfer.


:

Pssm-ID: 197235  Cd Length: 186  Bit Score: 276.77  E-value: 1.65e-92
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034602165 214 TWIYPLIQMKPFEIQIDEIVTETLLTEAERGAKVYLTTGYFNLTQAYMDLVLGTRAEYQILLASPEVNGFFGAKGVAGAI 293
Cdd:cd09137     1 TWVYPLLQMGPLNISQEEQVTSRLLQLLPRGSSLTLASGYFNLTPEYLNLLLNSSANLDVLTASPEANGFYGSKGVSGYI 80

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034602165 294 PAAYVHIERQFFSEVCSLGQQERVQLQEYWRRGWTFHAKGLWLYLAGSSLPCLTLIGSPNFGYRSVHRDLEAQIAIVTEN 373
Cdd:cd09137    81 PPAYTYIARQFLKRVRKNGKQPRIKLFEYKRPGWTFHAKGLWIYLPGTDLPSLTLIGSSNYGYRSVHRDLEAQFLIVTNN 160
PLDc_PGS1_euk_1 cd09135
Catalytic domain, repeat 1, of eukaryotic PhosphatidylGlycerophosphate Synthases; Catalytic ...
 3-134 2.16e-73

Catalytic domain, repeat 1, of eukaryotic PhosphatidylGlycerophosphate Synthases; Catalytic domain, repeat 1, of eukaryotic phosphatidylglycerophosphate (PGP) synthases, also called CDP-diacylglycerol--glycerol-3-phosphate 3-phosphatidyltransferase (EC 2.7.8.5). Eukaryotic PGP synthases are different and unrelated to prokaryotic PGP synthases and yeast phosphatidylserine synthase. They catalyze the synthesis of PGP from CDP-diacylglycerol and sn-glycerol 3-phosphate, the committed and rate-limiting step in the biosynthesis of cardiolipin (CL), which is an essential component of many mitochondrial functions in eukaryotes. Members in this subfamily all have two HKD motifs (H-x-K-x(4)-D, where x represents any amino acid residue) that characterizes the phospholipase D (PLD) superfamily. They may utilize a common two-step ping-pong catalytic mechanism involving a substrate-enzyme intermediate to cleave phosphodiester bonds. The two motifs are suggested to constitute the active site involved in the phosphatidyl group transfer.


:

Pssm-ID: 197233 [Multi-domain]  Cd Length: 170  Bit Score: 227.05  E-value: 2.16e-73
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034602165   3 VDCLESTLEKSlqakfpSNLKVSILLDFTRGSRGRKNSRT--MLLPLLRRFPEQVRVSLFHTPHLRGLLRLLIPERFNET 80
Cdd:cd09135    43 VDALQEALERN------PNLKVSILLDYLRGTRGEPNSRTasLLLPLLKLFPDRVRVSLYHTPNLRGLLKKLLPERFNEI 116

                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|....
gi 1034602165  81 IGLQHIKVYLFDNSVILSGANLSDSYFTNRQDRYVFLQDCAEIADFFTELVDAV 134
Cdd:cd09135   117 IGLQHMKLYIFDDDVILSGANLSDDYFTNRQDRYMLIENCPELADFYHDLIKAV 170
 
Name Accession Description Interval E-value
PLDc_PGS1_euk_2 cd09137
Catalytic domain, repeat 2, of eukaryotic phosphatidylglycerophosphate synthases; Catalytic ...
 214-373 1.65e-92

Catalytic domain, repeat 2, of eukaryotic phosphatidylglycerophosphate synthases; Catalytic domain, repeat 2, of eukaryotic phosphatidylglycerophosphate (PGP) synthases, also called CDP-diacylglycerol--glycerol-3-phosphate 3-phosphatidyltransferase (EC 2.7.8.5). Eukaryotic PGP synthases are different and unrelated to prokaryotic PGP synthases and yeast phosphatidylserine synthase. They catalyze the synthesis of PGP from CDP-diacylglycerol and sn-glycerol 3-phosphate, the committed and rate-limiting step in the biosynthesis of cardiolipin (CL), which is an essential component of many mitochondrial functions in eukaryotes. Members in this subfamily all have two HKD motifs (H-x-K-x(4)-D, where x represents any amino acid residue) that characterizes the phospholipase D (PLD) superfamily. They may utilize a common two-step ping-pong catalytic mechanism involving a substrate-enzyme intermediate to cleave phosphodiester bonds. The two motifs are suggested to constitute the active site involved in the phosphatidyl group transfer.


Pssm-ID: 197235  Cd Length: 186  Bit Score: 276.77  E-value: 1.65e-92
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034602165 214 TWIYPLIQMKPFEIQIDEIVTETLLTEAERGAKVYLTTGYFNLTQAYMDLVLGTRAEYQILLASPEVNGFFGAKGVAGAI 293
Cdd:cd09137     1 TWVYPLLQMGPLNISQEEQVTSRLLQLLPRGSSLTLASGYFNLTPEYLNLLLNSSANLDVLTASPEANGFYGSKGVSGYI 80

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034602165 294 PAAYVHIERQFFSEVCSLGQQERVQLQEYWRRGWTFHAKGLWLYLAGSSLPCLTLIGSPNFGYRSVHRDLEAQIAIVTEN 373
Cdd:cd09137    81 PPAYTYIARQFLKRVRKNGKQPRIKLFEYKRPGWTFHAKGLWIYLPGTDLPSLTLIGSSNYGYRSVHRDLEAQFLIVTNN 160
PLDc_PGS1_euk_1 cd09135
Catalytic domain, repeat 1, of eukaryotic PhosphatidylGlycerophosphate Synthases; Catalytic ...
 3-134 2.16e-73

Catalytic domain, repeat 1, of eukaryotic PhosphatidylGlycerophosphate Synthases; Catalytic domain, repeat 1, of eukaryotic phosphatidylglycerophosphate (PGP) synthases, also called CDP-diacylglycerol--glycerol-3-phosphate 3-phosphatidyltransferase (EC 2.7.8.5). Eukaryotic PGP synthases are different and unrelated to prokaryotic PGP synthases and yeast phosphatidylserine synthase. They catalyze the synthesis of PGP from CDP-diacylglycerol and sn-glycerol 3-phosphate, the committed and rate-limiting step in the biosynthesis of cardiolipin (CL), which is an essential component of many mitochondrial functions in eukaryotes. Members in this subfamily all have two HKD motifs (H-x-K-x(4)-D, where x represents any amino acid residue) that characterizes the phospholipase D (PLD) superfamily. They may utilize a common two-step ping-pong catalytic mechanism involving a substrate-enzyme intermediate to cleave phosphodiester bonds. The two motifs are suggested to constitute the active site involved in the phosphatidyl group transfer.


Pssm-ID: 197233 [Multi-domain]  Cd Length: 170  Bit Score: 227.05  E-value: 2.16e-73
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034602165   3 VDCLESTLEKSlqakfpSNLKVSILLDFTRGSRGRKNSRT--MLLPLLRRFPEQVRVSLFHTPHLRGLLRLLIPERFNET 80
Cdd:cd09135    43 VDALQEALERN------PNLKVSILLDYLRGTRGEPNSRTasLLLPLLKLFPDRVRVSLYHTPNLRGLLKKLLPERFNEI 116

                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|....
gi 1034602165  81 IGLQHIKVYLFDNSVILSGANLSDSYFTNRQDRYVFLQDCAEIADFFTELVDAV 134
Cdd:cd09135   117 IGLQHMKLYIFDDDVILSGANLSDDYFTNRQDRYMLIENCPELADFYHDLIKAV 170
Cls COG1502
Phosphatidylserine/phosphatidylglycerophosphate/cardiolipin synthase [Lipid transport and ...
 22-369 2.17e-06

Phosphatidylserine/phosphatidylglycerophosphate/cardiolipin synthase [Lipid transport and metabolism]; Phosphatidylserine/phosphatidylglycerophosphate/cardiolipin synthase is part of the Pathway/BioSystem: Phospholipid biosynthesis


Pssm-ID: 441111 [Multi-domain]  Cd Length: 367  Bit Score: 49.56  E-value: 2.17e-06
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034602165  22 LKVSILLDFTrGSRGRKNSrtmLLPLLRRfpEQVRVSLFHTPHLRgllrlliPERFNetiGLQHIKVYLFDNSV-ILSGA 100
Cdd:COG1502    69 VKVRVLLDGI-GSRALNRD---FLRRLRA--AGVEVRLFNPVRLL-------FRRLN---GRNHRKIVVIDGRVaFVGGA 132

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034602165 101 NLSDSYF------TNRQDRYVFLQD--CAEIADFFTELVDAVGDVSL---QLQGDDTVQVVdgMVHPYKGDRaeyckAAN 169
Cdd:COG1502   133 NITDEYLgrdpgfGPWRDTHVRIEGpaVADLQAVFAEDWNFATGEALpfpEPAGDVRVQVV--PSGPDSPRE-----TIE 205

                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034602165 170 KRVMDVINSARTRqqmlhaqtfhsnslltqedaaaagdrrpapdtwIYplIQMkpFEIQIDEIVTETLLTEAERGAKVYL 249
Cdd:COG1502   206 RALLAAIASARRR---------------------------------IY--IET--PYFVPDRSLLRALIAAARRGVDVRI 248

                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034602165 250 ttgyfnLTQAYMDLVL---GTRAEYQILLAspevngffgakgvAGaipaayVHIerqffsevcslgqqervqlqeYWRRG 326
Cdd:COG1502   249 ------LLPAKSDHPLvhwASRSYYEELLE-------------AG------VRI---------------------YEYEP 282

                         330       340       350       360
                  ....*....|....*....|....*....|....*....|....*
gi 1034602165 327 WTFHAKGLWL--YLAgsslpcltLIGSPNFGYRSVHRDLEAQIAI 369
Cdd:COG1502   283 GFLHAKVMVVddEWA--------LVGSANLDPRSLRLNFEVNLVI 319
pssA PRK09428
CDP-diacylglycerol--serine O-phosphatidyltransferase;
14-132 2.26e-06

CDP-diacylglycerol--serine O-phosphatidyltransferase;


Pssm-ID: 236510 [Multi-domain]  Cd Length: 451  Bit Score: 49.42  E-value: 2.26e-06
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034602165  14 LQAK--FPsNLKVSILLDFTRGSRGR---KNSRT---MLLPLLRRFPEqVRVSLFhtphlrGllrllIPERFNETIGLQH 85
Cdd:PRK09428   72 YQAKqqNP-ELDIKVLVDWHRAQRGLigaAASNTnadWYCEMAQEYPG-VDIPVY------G-----VPVNTREALGVLH 138

                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|.
gi 1034602165  86 IKVYLFDNSVILSGANLSDSYFtNRQDRYVF----LQDCAEIADFFTELVD 132
Cdd:PRK09428  139 LKGFIIDDTVLYSGASLNNVYL-HQHDKYRYdryhLIRNAELADSMVNFIQ 188
 
Name Accession Description Interval E-value
PLDc_PGS1_euk_2 cd09137
Catalytic domain, repeat 2, of eukaryotic phosphatidylglycerophosphate synthases; Catalytic ...
 214-373 1.65e-92

Catalytic domain, repeat 2, of eukaryotic phosphatidylglycerophosphate synthases; Catalytic domain, repeat 2, of eukaryotic phosphatidylglycerophosphate (PGP) synthases, also called CDP-diacylglycerol--glycerol-3-phosphate 3-phosphatidyltransferase (EC 2.7.8.5). Eukaryotic PGP synthases are different and unrelated to prokaryotic PGP synthases and yeast phosphatidylserine synthase. They catalyze the synthesis of PGP from CDP-diacylglycerol and sn-glycerol 3-phosphate, the committed and rate-limiting step in the biosynthesis of cardiolipin (CL), which is an essential component of many mitochondrial functions in eukaryotes. Members in this subfamily all have two HKD motifs (H-x-K-x(4)-D, where x represents any amino acid residue) that characterizes the phospholipase D (PLD) superfamily. They may utilize a common two-step ping-pong catalytic mechanism involving a substrate-enzyme intermediate to cleave phosphodiester bonds. The two motifs are suggested to constitute the active site involved in the phosphatidyl group transfer.


Pssm-ID: 197235  Cd Length: 186  Bit Score: 276.77  E-value: 1.65e-92
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034602165 214 TWIYPLIQMKPFEIQIDEIVTETLLTEAERGAKVYLTTGYFNLTQAYMDLVLGTRAEYQILLASPEVNGFFGAKGVAGAI 293
Cdd:cd09137     1 TWVYPLLQMGPLNISQEEQVTSRLLQLLPRGSSLTLASGYFNLTPEYLNLLLNSSANLDVLTASPEANGFYGSKGVSGYI 80

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034602165 294 PAAYVHIERQFFSEVCSLGQQERVQLQEYWRRGWTFHAKGLWLYLAGSSLPCLTLIGSPNFGYRSVHRDLEAQIAIVTEN 373
Cdd:cd09137    81 PPAYTYIARQFLKRVRKNGKQPRIKLFEYKRPGWTFHAKGLWIYLPGTDLPSLTLIGSSNYGYRSVHRDLEAQFLIVTNN 160
PLDc_PGS1_euk_1 cd09135
Catalytic domain, repeat 1, of eukaryotic PhosphatidylGlycerophosphate Synthases; Catalytic ...
 3-134 2.16e-73

Catalytic domain, repeat 1, of eukaryotic PhosphatidylGlycerophosphate Synthases; Catalytic domain, repeat 1, of eukaryotic phosphatidylglycerophosphate (PGP) synthases, also called CDP-diacylglycerol--glycerol-3-phosphate 3-phosphatidyltransferase (EC 2.7.8.5). Eukaryotic PGP synthases are different and unrelated to prokaryotic PGP synthases and yeast phosphatidylserine synthase. They catalyze the synthesis of PGP from CDP-diacylglycerol and sn-glycerol 3-phosphate, the committed and rate-limiting step in the biosynthesis of cardiolipin (CL), which is an essential component of many mitochondrial functions in eukaryotes. Members in this subfamily all have two HKD motifs (H-x-K-x(4)-D, where x represents any amino acid residue) that characterizes the phospholipase D (PLD) superfamily. They may utilize a common two-step ping-pong catalytic mechanism involving a substrate-enzyme intermediate to cleave phosphodiester bonds. The two motifs are suggested to constitute the active site involved in the phosphatidyl group transfer.


Pssm-ID: 197233 [Multi-domain]  Cd Length: 170  Bit Score: 227.05  E-value: 2.16e-73
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034602165   3 VDCLESTLEKSlqakfpSNLKVSILLDFTRGSRGRKNSRT--MLLPLLRRFPEQVRVSLFHTPHLRGLLRLLIPERFNET 80
Cdd:cd09135    43 VDALQEALERN------PNLKVSILLDYLRGTRGEPNSRTasLLLPLLKLFPDRVRVSLYHTPNLRGLLKKLLPERFNEI 116

                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|....
gi 1034602165  81 IGLQHIKVYLFDNSVILSGANLSDSYFTNRQDRYVFLQDCAEIADFFTELVDAV 134
Cdd:cd09135   117 IGLQHMKLYIFDDDVILSGANLSDDYFTNRQDRYMLIENCPELADFYHDLIKAV 170
PLDc_CDP-OH_P_transf_II_1 cd09102
Catalytic domain, repeat 1, of CDP-alcohol phosphatidyltransferase class-II family members; ...
 3-134 1.94e-63

Catalytic domain, repeat 1, of CDP-alcohol phosphatidyltransferase class-II family members; Catalytic domain, repeat 1, of CDP-alcohol phosphatidyltransferase class-II family members, which mainly include gram-negative bacterial phosphatidylserine synthases (PSS; CDP-diacylglycerol--serine O-phosphatidyltransferase, EC 2.7.8.8), yeast phosphatidylglycerophosphate synthase (PGP synthase; CDP-diacylglycerol--glycerol-3-phosphate 3-phosphatidyltransferase, EC 2.7.8.5), and metazoan PGP synthase 1. All members in this subfamily have two HKD motifs (H-x-K-x(4)-D, where x represents any amino acid residue) that characterize the phospholipase D (PLD) superfamily. They may utilize a common two-step ping-pong catalytic mechanism, involving a substrate-enzyme intermediate, to cleave phosphodiester bonds. The two motifs are suggested to constitute the active site involving phosphatidyl group transfer. Phosphatidylserine synthases from gram-positive bacteria and eukaryotes, and prokaryotic phosphatidylglycerophosphate synthases are not members of this subfamily.


Pssm-ID: 197201 [Multi-domain]  Cd Length: 168  Bit Score: 201.66  E-value: 1.94e-63
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034602165   3 VDCLESTLEKSlqakfpSNLKVSILLDFTRGSRGRKNSRTMLLPLLRRFPEQVRVSLFHTPHLRGLLRLLIPERFNETIG 82
Cdd:cd09102    43 LDEIYSVKQEN------PNLDVSVLIDWHRAQRNLLGSETKSATNADWYCEQRQTSQLHLLPDDGN*FFGVPINTNEVFG 116

                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|..
gi 1034602165  83 LQHIKVYLFDNSVILSGANLSDSYFTNRQDRYVFLQDCAEIADFFTELVDAV 134
Cdd:cd09102   117 VLHVKGYVFDDTVLLSGANLSNVYFHYRYDRYVKITHGAELADS*VNLINAY 168
PLDc_CDP-OH_P_transf_II_2 cd09103
Catalytic domain, repeat 2, of CDP-alcohol phosphatidyltransferase class-II family members; ...
 214-399 1.32e-54

Catalytic domain, repeat 2, of CDP-alcohol phosphatidyltransferase class-II family members; Catalytic domain, repeat 2, of CDP-alcohol phosphatidyltransferase class-II family members, which mainly include gram-negative bacterial phosphatidylserine synthases (PSS; CDP-diacylglycerol--serine O-phosphatidyltransferase, EC 2.7.8.8), yeast phosphatidylglycerophosphate synthase (PGP synthase; CDP-diacylglycerol--glycerol-3-phosphate 3-phosphatidyltransferase, EC 2.7.8.5), and metazoan PGP synthase 1. All members in this subfamily have two HKD motifs (H-x-K-x(4)-D, where x represents any amino acid residue) that characterize the phospholipase D (PLD) superfamily. They may utilize a common two-step ping-pong catalytic mechanism, involving a substrate-enzyme intermediate, to cleave phosphodiester bonds. The two motifs are suggested to constitute the active site involving phosphatidyl group transfer. Phosphatidylserine synthases from gram-positive bacteria and eukaryotes, and prokaryotic phosphatidylglycerophosphate synthases are not members of this subfamily.


Pssm-ID: 197202 [Multi-domain]  Cd Length: 184  Bit Score: 179.34  E-value: 1.32e-54
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034602165 214 TWIYPLIQMKPFeIQIDEIVTETLLTEAERgaKVYLTTGYFNLTQAYMDLVLG---TRAEYQILLASPEVNGFFGAK--- 287
Cdd:cd09103     1 LSITPLVGLGKR-GNILNRTIEQLITSAES--KIILCTPYFNLPQALMRDILRllkRGVKVEIIVGDKTANDFYIPPeep 77

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034602165 288 -GVAGAIPAAYVHIERQFFSEVCSLGQQERVQLQEYWRRGWTFHAKGLWLYLagsslpCLTLIGSPNFGYRSVHRDLEAQ 366
Cdd:cd09103    78 fKVIGALPYLYEINLRRFAKRLQKYIDQGQLNVRLWKDGDNSFHLKGIWVDD------RYTLLTGNNLNPRAWRLDLENG 151

                         170       180       190
                  ....*....|....*....|....*....|...
gi 1034602165 367 IAIVTENQALQQQLHQEQEQLYLRSGVVSSATF 399
Cdd:cd09103   152 LLIHDPQKQLQQQLEKELEQILLHTTRISHYTQ 184
PLDc_PSS_G_neg_1 cd09134
Catalytic domain, repeat 1, of phosphatidylserine synthases from gram-negative bacteria; ...
 10-132 1.50e-09

Catalytic domain, repeat 1, of phosphatidylserine synthases from gram-negative bacteria; Catalytic domain, repeat 1, of phosphatidylserine synthases (PSSs) from gram-negative bacteria. There are two subclasses of PSS enzymes in bacteria: subclass I of gram-negative bacteria and subclass II of gram-positive bacteria. It is common that PSSs in gram-positive bacteria and yeast are tight membrane-associated enzymes. By contrast, the gram-negative bacterial PSSs, such as Escherichia coli PSS, are commonly bound to the ribosomes. They are peripheral membrane proteins that can interact with the surface of the inner membrane by binding to the lipid substrate (CDP-diacylglycerol) and the lipid product (phosphatidylserine). The prototypical member of this subfamily is Escherichia coli PSS (also called CDP-diacylglycerol-L-serine O-phosphatidyltransferase, EC 2.7.8.8), which catalyzes the exchange reactions between CMP and CDP-diacylglycerol, and between serine and phosphatidylserine. The phosphatidylserine is then decarboxylated by phosphatidylserine decarboxylase to yield phosphatidylethanolamine, the major phospholipid in Escherichia coli. It also catalyzes the hydrolysis of CDP-diacylglycerol to form phosphatidic acid with the release of CMP. PSS may utilize a ping-pong mechanism involving a phosphatidyl-enzyme intermediate, which is distinct from those of gram-positive bacterial phosphatidylserine synthases. Moreover, all members in this subfamily have two HKD motifs (H-x-K-x(4)-D, where x represents any amino acid residue) that characterizes the phospholipase D (PLD) superfamily. The two motifs constitute an active site for the formation of a covalent substrate-enzyme intermediate.


Pssm-ID: 197232 [Multi-domain]  Cd Length: 173  Bit Score: 56.87  E-value: 1.50e-09
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034602165  10 LEKSLQAK--FPsNLKVSILLDFTRGSRGR---KNSRT---MLLPLLRRFPEQVRVslfhtphlrgllrLLIPERFNETI 81
Cdd:cd09134    52 LDALYEAKanNP-GLDIKVLVDWHRAQRGLigaKKSLGnadWYRKIAQRYGHDVPI-------------YGVPVKTRELF 117

                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 1034602165  82 GLQHIKVYLFDNSVILSGANLSDSYFTN----RQDRYVFLQDcAEIADFFTELVD 132
Cdd:cd09134   118 GVLHLKGFIIDDTVLYSGASLNNVYLHQfdkyRYDRYHLIYN-PELADSMVNFIQ 171
Cls COG1502
Phosphatidylserine/phosphatidylglycerophosphate/cardiolipin synthase [Lipid transport and ...
 22-369 2.17e-06

Phosphatidylserine/phosphatidylglycerophosphate/cardiolipin synthase [Lipid transport and metabolism]; Phosphatidylserine/phosphatidylglycerophosphate/cardiolipin synthase is part of the Pathway/BioSystem: Phospholipid biosynthesis


Pssm-ID: 441111 [Multi-domain]  Cd Length: 367  Bit Score: 49.56  E-value: 2.17e-06
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034602165  22 LKVSILLDFTrGSRGRKNSrtmLLPLLRRfpEQVRVSLFHTPHLRgllrlliPERFNetiGLQHIKVYLFDNSV-ILSGA 100
Cdd:COG1502    69 VKVRVLLDGI-GSRALNRD---FLRRLRA--AGVEVRLFNPVRLL-------FRRLN---GRNHRKIVVIDGRVaFVGGA 132

                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034602165 101 NLSDSYF------TNRQDRYVFLQD--CAEIADFFTELVDAVGDVSL---QLQGDDTVQVVdgMVHPYKGDRaeyckAAN 169
Cdd:COG1502   133 NITDEYLgrdpgfGPWRDTHVRIEGpaVADLQAVFAEDWNFATGEALpfpEPAGDVRVQVV--PSGPDSPRE-----TIE 205

                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034602165 170 KRVMDVINSARTRqqmlhaqtfhsnslltqedaaaagdrrpapdtwIYplIQMkpFEIQIDEIVTETLLTEAERGAKVYL 249
Cdd:COG1502   206 RALLAAIASARRR---------------------------------IY--IET--PYFVPDRSLLRALIAAARRGVDVRI 248

                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034602165 250 ttgyfnLTQAYMDLVL---GTRAEYQILLAspevngffgakgvAGaipaayVHIerqffsevcslgqqervqlqeYWRRG 326
Cdd:COG1502   249 ------LLPAKSDHPLvhwASRSYYEELLE-------------AG------VRI---------------------YEYEP 282

                         330       340       350       360
                  ....*....|....*....|....*....|....*....|....*
gi 1034602165 327 WTFHAKGLWL--YLAgsslpcltLIGSPNFGYRSVHRDLEAQIAI 369
Cdd:COG1502   283 GFLHAKVMVVddEWA--------LVGSANLDPRSLRLNFEVNLVI 319
pssA PRK09428
CDP-diacylglycerol--serine O-phosphatidyltransferase;
14-132 2.26e-06

CDP-diacylglycerol--serine O-phosphatidyltransferase;


Pssm-ID: 236510 [Multi-domain]  Cd Length: 451  Bit Score: 49.42  E-value: 2.26e-06
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034602165  14 LQAK--FPsNLKVSILLDFTRGSRGR---KNSRT---MLLPLLRRFPEqVRVSLFhtphlrGllrllIPERFNETIGLQH 85
Cdd:PRK09428   72 YQAKqqNP-ELDIKVLVDWHRAQRGLigaAASNTnadWYCEMAQEYPG-VDIPVY------G-----VPVNTREALGVLH 138

                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|.
gi 1034602165  86 IKVYLFDNSVILSGANLSDSYFtNRQDRYVF----LQDCAEIADFFTELVD 132
Cdd:PRK09428  139 LKGFIIDDTVLYSGASLNNVYL-HQHDKYRYdryhLIRNAELADSMVNFIQ 188
PLDc_SF cd00138
Catalytic domain of phospholipase D superfamily proteins; Catalytic domain of phospholipase D ...
 8-115 2.83e-04

Catalytic domain of phospholipase D superfamily proteins; Catalytic domain of phospholipase D (PLD) superfamily proteins. The PLD superfamily is composed of a large and diverse group of proteins including plant, mammalian and bacterial PLDs, bacterial cardiolipin (CL) synthases, bacterial phosphatidylserine synthases (PSS), eukaryotic phosphatidylglycerophosphate (PGP) synthase, eukaryotic tyrosyl-DNA phosphodiesterase 1 (Tdp1), and some bacterial endonucleases (Nuc and BfiI), among others. PLD enzymes hydrolyze phospholipid phosphodiester bonds to yield phosphatidic acid and a free polar head group. They can also catalyze the transphosphatidylation of phospholipids to acceptor alcohols. The majority of members in this superfamily contain a short conserved sequence motif (H-x-K-x(4)-D, where x represents any amino acid residue), called the HKD signature motif. There are varying expanded forms of this motif in different family members. Some members contain variant HKD motifs. Most PLD enzymes are monomeric proteins with two HKD motif-containing domains. Two HKD motifs from two domains form a single active site. Some PLD enzymes have only one copy of the HKD motif per subunit but form a functionally active dimer, which has a single active site at the dimer interface containing the two HKD motifs from both subunits. Different PLD enzymes may have evolved through domain fusion of a common catalytic core with separate substrate recognition domains. Despite their various catalytic functions and a very broad range of substrate specificities, the diverse group of PLD enzymes can bind to a phosphodiester moiety. Most of them are active as bi-lobed monomers or dimers, and may possess similar core structures for catalytic activity. They are generally thought to utilize a common two-step ping-pong catalytic mechanism, involving an enzyme-substrate intermediate, to cleave phosphodiester bonds. The two histidine residues from the two HKD motifs play key roles in the catalysis. Upon substrate binding, a histidine from one HKD motif could function as the nucleophile, attacking the phosphodiester bond to create a covalent phosphohistidine intermediate, while the other histidine residue from the second HKD motif could serve as a general acid, stabilizing the leaving group.


Pssm-ID: 197200 [Multi-domain]  Cd Length: 119  Bit Score: 40.19  E-value: 2.83e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034602165   8 STLEKSLQAKFPSNLKVSILLDftRGSRGRKNSRTMLLPLLRRFPEQVRVSLFHTPHLRGLlrlliperfnetiglqHIK 87
Cdd:cd00138    27 DRLLKALLAAAERGVDVRLIID--KPPNAAGSLSAALLEALLRAGVNVRSYVTPPHFFERL----------------HAK 88

                          90       100
                  ....*....|....*....|....*....
gi 1034602165  88 VYLFDNS-VILSGANLSDSYFTNRQDRYV 115
Cdd:cd00138    89 VVVIDGEvAYVGSANLSTASAAQNREAGV 117
 
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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