delta serrate ligand;

                            10        20        30        40        50        60
                    ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 4557679      167 WQTLKQNTGVAHFEYQIRVTCDDYYYGFGCNKFCRPRDDFFGHYACDQNGNKTCMEGWMGPEC 229
Cdd:smart00051    1 WSTDLHIGGRTFLEYQIRVTCDENYYGEGCNKFCRPRDDFFGHYTCDENGNKGCLEGWMGPYC 63

Calcium-binding EGF-like domain, present in a large number of membrane-bound and extracellular (mostly animal) proteins. Many of these proteins require calcium for their biological function and calcium-binding sites have been found to be located at the N-terminus of particular EGF-like domains; calcium-binding may be crucial for numerous protein-protein interactions. Six conserved core cysteines form three disulfide bridges as in non calcium-binding EGF domains, whose structures are very similar. EGF_CA can be found in tandem repeat arrangements.

                         10        20        30
                 ....*....|....*....|....*....|....*...
gi 4557679   629 NINDCES-NPCRNGGTCIDGVNSYKCICSDGWEGAYCE 665
Cdd:cd00054    1 DIDECASgNPCQNGGTCVNTVGSYRCSCPPGYTGRNCE 38

Calcium-binding EGF-like domain, present in a large number of membrane-bound and extracellular (mostly animal) proteins. Many of these proteins require calcium for their biological function and calcium-binding sites have been found to be located at the N-terminus of particular EGF-like domains; calcium-binding may be crucial for numerous protein-protein interactions. Six conserved core cysteines form three disulfide bridges as in non calcium-binding EGF domains, whose structures are very similar. EGF_CA can be found in tandem repeat arrangements.

                         10        20        30
                 ....*....|....*....|....*....|....*...
gi 4557679   820 NINECQS-SPCAFGATCVDEINGYRCVCPPGHSGAKCQ 856
Cdd:cd00054    1 DIDECASgNPCQNGGTCVNTVGSYRCSCPPGYTGRNCE 38

Calcium-binding EGF-like domain, present in a large number of membrane-bound and extracellular (mostly animal) proteins. Many of these proteins require calcium for their biological function and calcium-binding sites have been found to be located at the N-terminus of particular EGF-like domains; calcium-binding may be crucial for numerous protein-protein interactions. Six conserved core cysteines form three disulfide bridges as in non calcium-binding EGF domains, whose structures are very similar. EGF_CA can be found in tandem repeat arrangements.

                         10        20        30
                 ....*....|....*....|....*....|....*..
gi 4557679   667 NINDC-SQNPCHNGGTCRDLVNDFYCDCKNGWKGKTC 702
Cdd:cd00054    1 DIDECaSGNPCQNGGTCVNTVGSYRCSCPPGYTGRNC 37

Calcium-binding EGF-like domain, present in a large number of membrane-bound and extracellular (mostly animal) proteins. Many of these proteins require calcium for their biological function and calcium-binding sites have been found to be located at the N-terminus of particular EGF-like domains; calcium-binding may be crucial for numerous protein-protein interactions. Six conserved core cysteines form three disulfide bridges as in non calcium-binding EGF domains, whose structures are very similar. EGF_CA can be found in tandem repeat arrangements.

                         10        20        30
                 ....*....|....*....|....*....|....*...
gi 4557679   450 NINDCL--GQCQNDASCRDLVNGYRCICPPGYAGDHCE 485
Cdd:cd00054    1 DIDECAsgNPCQNGGTCVNTVGSYRCSCPPGYTGRNCE 38

Calcium-binding EGF-like domain, present in a large number of membrane-bound and extracellular (mostly animal) proteins. Many of these proteins require calcium for their biological function and calcium-binding sites have been found to be located at the N-terminus of particular EGF-like domains; calcium-binding may be crucial for numerous protein-protein interactions. Six conserved core cysteines form three disulfide bridges as in non calcium-binding EGF domains, whose structures are very similar. EGF_CA can be found in tandem repeat arrangements.

                         10        20        30
                 ....*....|....*....|....*....|....*..
gi 4557679   525 DIDYCE-PNPCQNGAQCYNRASDYFCKCPEDYEGKNC 560
Cdd:cd00054    1 DIDECAsGNPCQNGGTCVNTVGSYRCSCPPGYTGRNC 37

Calcium-binding EGF-like domain, present in a large number of membrane-bound and extracellular (mostly animal) proteins. Many of these proteins require calcium for their biological function and calcium-binding sites have been found to be located at the N-terminus of particular EGF-like domains; calcium-binding may be crucial for numerous protein-protein interactions. Six conserved core cysteines form three disulfide bridges as in non calcium-binding EGF domains, whose structures are very similar. EGF_CA can be found in tandem repeat arrangements.

                         10        20        30
                 ....*....|....*....|....*....|....*..
gi 4557679   412 DANECEAK-PCVNAKSCKNLIASYYCDCLPGWMGQNC 447
Cdd:cd00054    1 DIDECASGnPCQNGGTCVNTVGSYRCSCPPGYTGRNC 37

delta serrate ligand;

                            10        20        30        40        50        60
                    ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 4557679      167 WQTLKQNTGVAHFEYQIRVTCDDYYYGFGCNKFCRPRDDFFGHYACDQNGNKTCMEGWMGPEC 229
Cdd:smart00051    1 WSTDLHIGGRTFLEYQIRVTCDENYYGEGCNKFCRPRDDFFGHYTCDENGNKGCLEGWMGPYC 63

Delta serrate ligand; This family has been redefined to correspond to the EGF-like domain defined by structure.

                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*.
gi 4557679     187 CDDYYYGFGCNKFCRPRDDFFGHYACDQNGNKTCMEGWMGPECNRA 232
Cdd:pfam01414    1 CDENYYGSTCSKFCRPRDDKFGHYTCDANGNKVCLPGWTGPYCDKP 46

Calcium-binding EGF-like domain, present in a large number of membrane-bound and extracellular (mostly animal) proteins. Many of these proteins require calcium for their biological function and calcium-binding sites have been found to be located at the N-terminus of particular EGF-like domains; calcium-binding may be crucial for numerous protein-protein interactions. Six conserved core cysteines form three disulfide bridges as in non calcium-binding EGF domains, whose structures are very similar. EGF_CA can be found in tandem repeat arrangements.

                         10        20        30
                 ....*....|....*....|....*....|....*...
gi 4557679   487 DIDECAS-NPCLNGGHCQNEINRFQCLCPTGFSGNLCQ 523
Cdd:cd00054    1 DIDECASgNPCQNGGTCVNTVGSYRCSCPPGYTGRNCE 38

Calcium-binding EGF-like domain, present in a large number of membrane-bound and extracellular (mostly animal) proteins. Many of these proteins require calcium for their biological function and calcium-binding sites have been found to be located at the N-terminus of particular EGF-like domains; calcium-binding may be crucial for numerous protein-protein interactions. Six conserved core cysteines form three disulfide bridges as in non calcium-binding EGF domains, whose structures are very similar. EGF_CA can be found in tandem repeat arrangements.

                         10        20        30
                 ....*....|....*....|....*....|....*...
gi 4557679   374 NIDDC-SPNNCSHGGTCQDLVNGFKCVCPPQWTGKTCQ 410
Cdd:cd00054    1 DIDECaSGNPCQNGGTCVNTVGSYRCSCPPGYTGRNCE 38

Calcium-binding EGF-like domain;

                            10        20        30
                    ....*....|....*....|....*....|....*....
gi 4557679      629 NINDCES-NPCRNGGTCIDGVNSYKCICSDGWE-GAYCE 665
Cdd:smart00179    1 DIDECASgNPCQNGGTCVNTVGSYRCECPPGYTdGRNCE 39

Calcium-binding EGF-like domain, present in a large number of membrane-bound and extracellular (mostly animal) proteins. Many of these proteins require calcium for their biological function and calcium-binding sites have been found to be located at the N-terminus of particular EGF-like domains; calcium-binding may be crucial for numerous protein-protein interactions. Six conserved core cysteines form three disulfide bridges as in non calcium-binding EGF domains, whose structures are very similar. EGF_CA can be found in tandem repeat arrangements.

                         10        20        30
                 ....*....|....*....|....*....|....*...
gi 4557679   450 NINDCL--GQCQNDASCRDLVNGYRCICPPGYAGDHCE 485
Cdd:cd00054    1 DIDECAsgNPCQNGGTCVNTVGSYRCSCPPGYTGRNCE 38

Calcium-binding EGF-like domain, present in a large number of membrane-bound and extracellular (mostly animal) proteins. Many of these proteins require calcium for their biological function and calcium-binding sites have been found to be located at the N-terminus of particular EGF-like domains; calcium-binding may be crucial for numerous protein-protein interactions. Six conserved core cysteines form three disulfide bridges as in non calcium-binding EGF domains, whose structures are very similar. EGF_CA can be found in tandem repeat arrangements.

                         10        20        30
                 ....*....|....*....|....*....|....*..
gi 4557679   782 NTNDC-SPHPCYNSGTCVDGDNWYRCECAPGFAGPDC 817
Cdd:cd00054    1 DIDECaSGNPCQNGGTCVNTVGSYRCSCPPGYTGRNC 37

Calcium-binding EGF-like domain, present in a large number of membrane-bound and extracellular (mostly animal) proteins. Many of these proteins require calcium for their biological function and calcium-binding sites have been found to be located at the N-terminus of particular EGF-like domains; calcium-binding may be crucial for numerous protein-protein interactions. Six conserved core cysteines form three disulfide bridges as in non calcium-binding EGF domains, whose structures are very similar. EGF_CA can be found in tandem repeat arrangements.

                         10        20        30
                 ....*....|....*....|....*....|....*..
gi 4557679   525 DIDYCE-PNPCQNGAQCYNRASDYFCKCPEDYEGKNC 560
Cdd:cd00054    1 DIDECAsGNPCQNGGTCVNTVGSYRCSCPPGYTGRNC 37

EGF-like domain; There is no clear separation between noise and signal. pfam00053 is very similar, but has 8 instead of 6 conserved cysteines. Includes some cytokine receptors. The EGF domain misses the N-terminus regions of the Ca2+ binding EGF domains (this is the main reason of discrepancy between swiss-prot domain start/end and Pfam). The family is hard to model due to many similar but different sub-types of EGF domains. Pfam certainly misses a number of EGF domains.

                           10        20        30
                   ....*....|....*....|....*....|.
gi 4557679     671 CSQNPCHNGGTCRDLVNDFYCDCKNGWKGKT 701
Cdd:pfam00008    1 CAPNPCSNGGTCVDTPGGYTCICPEGYTGKR 31

Calcium-binding EGF-like domain;

                            10        20        30
                    ....*....|....*....|....*....|....*...
gi 4557679      667 NINDC-SQNPCHNGGTCRDLVNDFYCDCKNGWK-GKTC 702
Cdd:smart00179    1 DIDECaSGNPCQNGGTCVNTVGSYRCECPPGYTdGRNC 38

Calcium-binding EGF-like domain;

                            10        20        30        40
                    ....*....|....*....|....*....|....*....|
gi 4557679      296 DLNYCGTHQPCLNGGTCSNTgPDKYQCSCPEGYS-GPNCE 334
Cdd:smart00179    1 DIDECASGNPCQNGGTCVNT-VGSYRCECPPGYTdGRNCE 39

EGF-like domain; There is no clear separation between noise and signal. pfam00053 is very similar, but has 8 instead of 6 conserved cysteines. Includes some cytokine receptors. The EGF domain misses the N-terminus regions of the Ca2+ binding EGF domains (this is the main reason of discrepancy between swiss-prot domain start/end and Pfam). The family is hard to model due to many similar but different sub-types of EGF domains. Pfam certainly misses a number of EGF domains.

                           10        20        30
                   ....*....|....*....|....*....|.
gi 4557679     633 CESNPCRNGGTCIDGVNSYKCICSDGWEGAY 663
Cdd:pfam00008    1 CAPNPCSNGGTCVDTPGGYTCICPEGYTGKR 31

Calcium-binding EGF-like domain, present in a large number of membrane-bound and extracellular (mostly animal) proteins. Many of these proteins require calcium for their biological function and calcium-binding sites have been found to be located at the N-terminus of particular EGF-like domains; calcium-binding may be crucial for numerous protein-protein interactions. Six conserved core cysteines form three disulfide bridges as in non calcium-binding EGF domains, whose structures are very similar. EGF_CA can be found in tandem repeat arrangements.

                         10        20        30
                 ....*....|....*....|....*....|....*..
gi 4557679   412 DANECEAK-PCVNAKSCKNLIASYYCDCLPGWMGQNC 447
Cdd:cd00054    1 DIDECASGnPCQNGGTCVNTVGSYRCSCPPGYTGRNC 37

Calcium-binding EGF-like domain;

                            10        20        30
                    ....*....|....*....|....*....|....*...
gi 4557679      782 NTNDC-SPHPCYNSGTCVDGDNWYRCECAPGF-AGPDC 817
Cdd:smart00179    1 DIDECaSGNPCQNGGTCVNTVGSYRCECPPGYtDGRNC 38

EGF-like domain; There is no clear separation between noise and signal. pfam00053 is very similar, but has 8 instead of 6 conserved cysteines. Includes some cytokine receptors. The EGF domain misses the N-terminus regions of the Ca2+ binding EGF domains (this is the main reason of discrepancy between swiss-prot domain start/end and Pfam). The family is hard to model due to many similar but different sub-types of EGF domains. Pfam certainly misses a number of EGF domains.

                           10        20        30
                   ....*....|....*....|....*....|.
gi 4557679     340 CLSDPCHNRGSCKETSLGFECECSPGWTGPT 370
Cdd:pfam00008    1 CAPNPCSNGGTCVDTPGGYTCICPEGYTGKR 31

EGF-like domain; There is no clear separation between noise and signal. pfam00053 is very similar, but has 8 instead of 6 conserved cysteines. Includes some cytokine receptors. The EGF domain misses the N-terminus regions of the Ca2+ binding EGF domains (this is the main reason of discrepancy between swiss-prot domain start/end and Pfam). The family is hard to model due to many similar but different sub-types of EGF domains. Pfam certainly misses a number of EGF domains.

                           10        20        30
                   ....*....|....*....|....*....|.
gi 4557679     529 CEPNPCQNGAQCYNRASDYFCKCPEDYEGKN 559
Cdd:pfam00008    1 CAPNPCSNGGTCVDTPGGYTCICPEGYTGKR 31

delta serrate ligand;

                            10        20        30        40        50        60
                    ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 4557679      167 WQTLKQNTGVAHFEYQIRVTCDDYYYGFGCNKFCRPRDDFFGHYACDQNGNKTCMEGWMGPEC 229
Cdd:smart00051    1 WSTDLHIGGRTFLEYQIRVTCDENYYGEGCNKFCRPRDDFFGHYTCDENGNKGCLEGWMGPYC 63

Delta serrate ligand; This family has been redefined to correspond to the EGF-like domain defined by structure.

                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*.
gi 4557679     187 CDDYYYGFGCNKFCRPRDDFFGHYACDQNGNKTCMEGWMGPECNRA 232
Cdd:pfam01414    1 CDENYYGSTCSKFCRPRDDKFGHYTCDANGNKVCLPGWTGPYCDKP 46

Calcium-binding EGF-like domain, present in a large number of membrane-bound and extracellular (mostly animal) proteins. Many of these proteins require calcium for their biological function and calcium-binding sites have been found to be located at the N-terminus of particular EGF-like domains; calcium-binding may be crucial for numerous protein-protein interactions. Six conserved core cysteines form three disulfide bridges as in non calcium-binding EGF domains, whose structures are very similar. EGF_CA can be found in tandem repeat arrangements.

                         10        20        30
                 ....*....|....*....|....*....|....*...
gi 4557679   487 DIDECAS-NPCLNGGHCQNEINRFQCLCPTGFSGNLCQ 523
Cdd:cd00054    1 DIDECASgNPCQNGGTCVNTVGSYRCSCPPGYTGRNCE 38

Calcium-binding EGF-like domain, present in a large number of membrane-bound and extracellular (mostly animal) proteins. Many of these proteins require calcium for their biological function and calcium-binding sites have been found to be located at the N-terminus of particular EGF-like domains; calcium-binding may be crucial for numerous protein-protein interactions. Six conserved core cysteines form three disulfide bridges as in non calcium-binding EGF domains, whose structures are very similar. EGF_CA can be found in tandem repeat arrangements.

                         10        20        30
                 ....*....|....*....|....*....|....*...
gi 4557679   374 NIDDC-SPNNCSHGGTCQDLVNGFKCVCPPQWTGKTCQ 410
Cdd:cd00054    1 DIDECaSGNPCQNGGTCVNTVGSYRCSCPPGYTGRNCE 38

Calcium-binding EGF-like domain;

                            10        20        30
                    ....*....|....*....|....*....|....*....
gi 4557679      629 NINDCES-NPCRNGGTCIDGVNSYKCICSDGWE-GAYCE 665
Cdd:smart00179    1 DIDECASgNPCQNGGTCVNTVGSYRCECPPGYTdGRNCE 39

Calcium-binding EGF-like domain, present in a large number of membrane-bound and extracellular (mostly animal) proteins. Many of these proteins require calcium for their biological function and calcium-binding sites have been found to be located at the N-terminus of particular EGF-like domains; calcium-binding may be crucial for numerous protein-protein interactions. Six conserved core cysteines form three disulfide bridges as in non calcium-binding EGF domains, whose structures are very similar. EGF_CA can be found in tandem repeat arrangements.

                         10        20        30
                 ....*....|....*....|....*....|....*...
gi 4557679   450 NINDCL--GQCQNDASCRDLVNGYRCICPPGYAGDHCE 485
Cdd:cd00054    1 DIDECAsgNPCQNGGTCVNTVGSYRCSCPPGYTGRNCE 38

Calcium-binding EGF-like domain, present in a large number of membrane-bound and extracellular (mostly animal) proteins. Many of these proteins require calcium for their biological function and calcium-binding sites have been found to be located at the N-terminus of particular EGF-like domains; calcium-binding may be crucial for numerous protein-protein interactions. Six conserved core cysteines form three disulfide bridges as in non calcium-binding EGF domains, whose structures are very similar. EGF_CA can be found in tandem repeat arrangements.

                         10        20        30
                 ....*....|....*....|....*....|....*..
gi 4557679   782 NTNDC-SPHPCYNSGTCVDGDNWYRCECAPGFAGPDC 817
Cdd:cd00054    1 DIDECaSGNPCQNGGTCVNTVGSYRCSCPPGYTGRNC 37

Calcium-binding EGF-like domain, present in a large number of membrane-bound and extracellular (mostly animal) proteins. Many of these proteins require calcium for their biological function and calcium-binding sites have been found to be located at the N-terminus of particular EGF-like domains; calcium-binding may be crucial for numerous protein-protein interactions. Six conserved core cysteines form three disulfide bridges as in non calcium-binding EGF domains, whose structures are very similar. EGF_CA can be found in tandem repeat arrangements.

                         10        20        30
                 ....*....|....*....|....*....|....*..
gi 4557679   525 DIDYCE-PNPCQNGAQCYNRASDYFCKCPEDYEGKNC 560
Cdd:cd00054    1 DIDECAsGNPCQNGGTCVNTVGSYRCSCPPGYTGRNC 37

EGF-like domain; There is no clear separation between noise and signal. pfam00053 is very similar, but has 8 instead of 6 conserved cysteines. Includes some cytokine receptors. The EGF domain misses the N-terminus regions of the Ca2+ binding EGF domains (this is the main reason of discrepancy between swiss-prot domain start/end and Pfam). The family is hard to model due to many similar but different sub-types of EGF domains. Pfam certainly misses a number of EGF domains.

                           10        20        30
                   ....*....|....*....|....*....|.
gi 4557679     671 CSQNPCHNGGTCRDLVNDFYCDCKNGWKGKT 701
Cdd:pfam00008    1 CAPNPCSNGGTCVDTPGGYTCICPEGYTGKR 31

Calcium-binding EGF-like domain;

                            10        20        30
                    ....*....|....*....|....*....|....*...
gi 4557679      667 NINDC-SQNPCHNGGTCRDLVNDFYCDCKNGWK-GKTC 702
Cdd:smart00179    1 DIDECaSGNPCQNGGTCVNTVGSYRCECPPGYTdGRNC 38

Calcium-binding EGF-like domain;

                            10        20        30        40
                    ....*....|....*....|....*....|....*....|
gi 4557679      296 DLNYCGTHQPCLNGGTCSNTgPDKYQCSCPEGYS-GPNCE 334
Cdd:smart00179    1 DIDECASGNPCQNGGTCVNT-VGSYRCECPPGYTdGRNCE 39

EGF-like domain; There is no clear separation between noise and signal. pfam00053 is very similar, but has 8 instead of 6 conserved cysteines. Includes some cytokine receptors. The EGF domain misses the N-terminus regions of the Ca2+ binding EGF domains (this is the main reason of discrepancy between swiss-prot domain start/end and Pfam). The family is hard to model due to many similar but different sub-types of EGF domains. Pfam certainly misses a number of EGF domains.

                           10        20        30
                   ....*....|....*....|....*....|.
gi 4557679     633 CESNPCRNGGTCIDGVNSYKCICSDGWEGAY 663
Cdd:pfam00008    1 CAPNPCSNGGTCVDTPGGYTCICPEGYTGKR 31

Calcium-binding EGF-like domain, present in a large number of membrane-bound and extracellular (mostly animal) proteins. Many of these proteins require calcium for their biological function and calcium-binding sites have been found to be located at the N-terminus of particular EGF-like domains; calcium-binding may be crucial for numerous protein-protein interactions. Six conserved core cysteines form three disulfide bridges as in non calcium-binding EGF domains, whose structures are very similar. EGF_CA can be found in tandem repeat arrangements.

                         10        20        30
                 ....*....|....*....|....*....|....*..
gi 4557679   412 DANECEAK-PCVNAKSCKNLIASYYCDCLPGWMGQNC 447
Cdd:cd00054    1 DIDECASGnPCQNGGTCVNTVGSYRCSCPPGYTGRNC 37

Calcium-binding EGF-like domain;

                            10        20        30
                    ....*....|....*....|....*....|....*...
gi 4557679      782 NTNDC-SPHPCYNSGTCVDGDNWYRCECAPGF-AGPDC 817
Cdd:smart00179    1 DIDECaSGNPCQNGGTCVNTVGSYRCECPPGYtDGRNC 38

Calcium-binding EGF-like domain, present in a large number of membrane-bound and extracellular (mostly animal) proteins. Many of these proteins require calcium for their biological function and calcium-binding sites have been found to be located at the N-terminus of particular EGF-like domains; calcium-binding may be crucial for numerous protein-protein interactions. Six conserved core cysteines form three disulfide bridges as in non calcium-binding EGF domains, whose structures are very similar. EGF_CA can be found in tandem repeat arrangements.

                         10        20        30
                 ....*....|....*....|....*....|
gi 4557679   750 PNPCHNGGTCVVNGESFTCVCKEGWEGPIC 779
Cdd:cd00054    8 GNPCQNGGTCVNTVGSYRCSCPPGYTGRNC 37

Calcium-binding EGF-like domain;

                            10        20        30
                    ....*....|....*....|....*....|....*....
gi 4557679      412 DANECEAK-PCVNAKSCKNLIASYYCDCLPGWM-GQNCD 448
Cdd:smart00179    1 DIDECASGnPCQNGGTCVNTVGSYRCECPPGYTdGRNCE 39

Human growth factor-like EGF; hEGF, or human growth factor-like EGF, domains have six conserved residues disulfide-bonded into the characteriztic 'ababcc' pattern. They are involved in growth and proliferation of cells, in proteins of the Notch/Delta pathway, neurogulin and selectins. hEGFs are also found in mosaic proteins with four-disulfide laminin EGFs such as aggrecan and perlecan. The core fold of the EGF domain consists of two small beta-hairpins packed against each other. Two major structural variants have been identified based on the structural context of the C-terminal Cys residue of disulfide 'c' in the C-terminal hairpin: hEGFs and cEGFs. In hEGFs the C-terminal thiol resides in the beta-turn, resulting in shorter loop-lengths between the Cys residues of disulfide 'c', typically C[8-9]XC. These shorter loop-lengths are also typical of the four-disulfide EGF domains, laminin ad integrin. Tandem hEGF domains have six linking residues between terminal cysteines of adjacent domains. hEGF domains may or may not bind calcium in the linker region. hEGF domains with the consensus motif CXD4X[F,Y]XCXC are hydroxylated exclusively in the Asp residue.

                           10        20
                   ....*....|....*....|..
gi 4557679     638 CRNGGTCIDGVNSYKCICSDGW 659
Cdd:pfam12661    1 CQNGGTCVDGVNGYKCQCPPGY 22

EGF-like domain; There is no clear separation between noise and signal. pfam00053 is very similar, but has 8 instead of 6 conserved cysteines. Includes some cytokine receptors. The EGF domain misses the N-terminus regions of the Ca2+ binding EGF domains (this is the main reason of discrepancy between swiss-prot domain start/end and Pfam). The family is hard to model due to many similar but different sub-types of EGF domains. Pfam certainly misses a number of EGF domains.

                           10        20        30
                   ....*....|....*....|....*....|.
gi 4557679     786 CSPHPCYNSGTCVDGDNWYRCECAPGFAGPD 816
Cdd:pfam00008    1 CAPNPCSNGGTCVDTPGGYTCICPEGYTGKR 31

Epidermal growth factor domain, found in epidermal growth factor (EGF) presents in a large number of proteins, mostly animal; the list of proteins currently known to contain one or more copies of an EGF-like pattern is large and varied; the functional significance of EGF-like domains in what appear to be unrelated proteins is not yet clear; a common feature is that these repeats are found in the extracellular domain of membrane-bound proteins or in proteins known to be secreted (exception: prostaglandin G/H synthase); the domain includes six cysteine residues which have been shown to be involved in disulfide bonds; the main structure is a two-stranded beta-sheet followed by a loop to a C-terminal short two-stranded sheet; Subdomains between the conserved cysteines vary in length; the region between the 5th and 6th cysteine contains two conserved glycines of which at least one is present in most EGF-like domains; a subset of these bind calcium.

                         10        20        30
                 ....*....|....*....|....*....|....*.
gi 4557679   300 CGTHQPCLNGGTCSNTgPDKYQCSCPEGYSGP-NCE 334
Cdd:cd00053    2 CAASNPCSNGGTCVNT-PGSYRCVCPPGYTGDrSCE 36

Epidermal growth factor domain, found in epidermal growth factor (EGF) presents in a large number of proteins, mostly animal; the list of proteins currently known to contain one or more copies of an EGF-like pattern is large and varied; the functional significance of EGF-like domains in what appear to be unrelated proteins is not yet clear; a common feature is that these repeats are found in the extracellular domain of membrane-bound proteins or in proteins known to be secreted (exception: prostaglandin G/H synthase); the domain includes six cysteine residues which have been shown to be involved in disulfide bonds; the main structure is a two-stranded beta-sheet followed by a loop to a C-terminal short two-stranded sheet; Subdomains between the conserved cysteines vary in length; the region between the 5th and 6th cysteine contains two conserved glycines of which at least one is present in most EGF-like domains; a subset of these bind calcium.

                         10        20        30
                 ....*....|....*....|....*....|..
gi 4557679   490 ECA-SNPCLNGGHCQNEINRFQCLCPTGFSGN 520
Cdd:cd00053    1 ECAaSNPCSNGGTCVNTPGSYRCVCPPGYTGD 32