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1ELV

CRYSTAL STRUCTURE OF THE CATALYTIC DOMAIN OF HUMAN COMPLEMENT C1S PROTEASE

Functional Information from GO Data
ChainGOidnamespacecontents
A0004252molecular_functionserine-type endopeptidase activity
A0006508biological_processproteolysis
Functional Information from PDB Data
site_idCAT
Number of Residues3
DetailsTHE CATALYTIC TRIAD IS: HIS A460 (57), ASP A514 (102), SER A617 (195) (RESIDUE NUMBERS IN THE REFERENCE CHYMOTRYPSINOGEN MOLECULE).
ChainResidue
AHIS460
AASP514
ASER617

Functional Information from PROSITE/UniProt
site_idPS00135
Number of Residues12
DetailsTRYPSIN_SER Serine proteases, trypsin family, serine active site. DSckGDSGGAFA
ChainResidueDetails
AASP611-ALA622

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues3
DetailsActive site: {"description":"Charge relay system","evidences":[{"source":"PubMed","id":"10775260","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues1
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) asparagine","evidences":[{"source":"PubMed","id":"12788922","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"16335952","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"19159218","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues2
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
AASP514
AHIS460

site_idCSA2
Number of Residues2
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
AGLY618
ASER617

site_idCSA3
Number of Residues2
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
AGLY615
ASER617

site_idCSA4
Number of Residues3
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
AASP514
ASER617
AHIS460

site_idCSA5
Number of Residues4
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
AASP514
AGLY618
ASER617
AHIS460

site_idCSA6
Number of Residues5
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
AGLY615
AASP514
ASER639
ASER617
AHIS460

site_idCSA7
Number of Residues4
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
AGLY615
AASP514
ASER617
AHIS460

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PDB entries from 2025-12-17

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