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3GOV

Crystal structure of the catalytic region of human MASP-1

Functional Information from GO Data
ChainGOidnamespacecontents
B0004252molecular_functionserine-type endopeptidase activity
B0006508biological_processproteolysis
Functional Information from PDB Data
site_idAC1
Number of Residues6
DetailsBINDING SITE FOR RESIDUE GOL A 1
ChainResidue
AGLU313
ALEU326
ASER328
ASER442
BHOH5
BLYS457

site_idAC2
Number of Residues4
DetailsBINDING SITE FOR RESIDUE GOL B 2
ChainResidue
BHOH12
AMET342
AASP343
ATHR344

Functional Information from PROSITE/UniProt
site_idPS00134
Number of Residues6
DetailsTRYPSIN_HIS Serine proteases, trypsin family, histidine active site. VTAAHC
ChainResidueDetails
BVAL486-CYS491

site_idPS00135
Number of Residues12
DetailsTRYPSIN_SER Serine proteases, trypsin family, serine active site. DAcaGDSGGPMV
ChainResidueDetails
BASP640-VAL651

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues65
DetailsDomain: {"description":"Sushi 1","evidences":[{"source":"PROSITE-ProRule","id":"PRU00302","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues69
DetailsDomain: {"description":"Sushi 2","evidences":[{"source":"PROSITE-ProRule","id":"PRU00302","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues1
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) (complex) asparagine","evidences":[{"source":"PubMed","id":"16335952","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"19139490","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues1
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) asparagine","evidences":[{"source":"PubMed","id":"11290788","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"16335952","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues247
DetailsDomain: {"description":"Peptidase S1","evidences":[{"source":"PROSITE-ProRule","id":"PRU00274","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues3
DetailsActive site: {"description":"Charge relay system","evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues2
DetailsGlycosylation: {"description":"N-linked (GlcNAc) asparagine","evidences":[{"source":"PubMed","id":"16335952","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues3
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
BHIS490
BSER646
BASP552

site_idCSA2
Number of Residues2
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
BHIS490
BASP552

site_idCSA3
Number of Residues2
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
BGLY644
BSER646

site_idCSA4
Number of Residues2
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
BSER646
BGLY647

site_idCSA5
Number of Residues4
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
BGLY644
BHIS490
BSER646
BASP552

site_idCSA6
Number of Residues4
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
BHIS490
BSER646
BASP552
BGLY647

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PDB entries from 2025-10-29

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