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1PCA

THREE DIMENSIONAL STRUCTURE OF PORCINE PANCREATIC PROCARBOXYPEPTIDASE A. A COMPARISON OF THE A AND B ZYMOGENS AND THEIR DETERMINANTS FOR INHIBITION AND ACTIVATION

Functional Information from GO Data
ChainGOidnamespacecontents
A0004181molecular_functionmetallocarboxypeptidase activity
A0006508biological_processproteolysis
A0008270molecular_functionzinc ion binding
Functional Information from PDB Data
site_idAC1
Number of Residues4
DetailsBINDING SITE FOR RESIDUE ZN A 400
ChainResidue
AHIS69
AGLU72
AHIS196
AHOH701

site_idAC2
Number of Residues8
DetailsBINDING SITE FOR RESIDUE CIT A 600
ChainResidue
ALYS224
ASER225
AHOH890
AASP19
AALA21
AGLN22
AHIS71
AGLN221

site_idAC3
Number of Residues7
DetailsBINDING SITE FOR RESIDUE VAL A 700
ChainResidue
AARG127
AASN144
AARG145
ATYR248
AALA250
AGLU270
AHOH701

Functional Information from PROSITE/UniProt
site_idPS00132
Number of Residues23
DetailsCARBOXYPEPT_ZN_1 Zinc carboxypeptidases, zinc-binding region 1 signature. PaIwIdsGiHSrEwITQasgvwF
ChainResidueDetails
APRO60-PHE82

site_idPS00133
Number of Residues11
DetailsCARBOXYPEPT_ZN_2 Zinc carboxypeptidases, zinc-binding region 2 signature. HSYSQLLlYPY
ChainResidueDetails
AHIS196-TYR206

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues93
DetailsPropeptide: {"description":"Activation peptide","featureId":"PRO_0000004349"}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues293
DetailsDomain: {"description":"Peptidase M14","evidences":[{"source":"PROSITE-ProRule","id":"PRU01379","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues1
DetailsActive site: {"description":"Proton donor/acceptor","evidences":[{"source":"PROSITE-ProRule","id":"PRU01379","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues7
DetailsBinding site: {"evidences":[{"source":"UniProtKB","id":"P00730","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues3
DetailsBinding site: {"evidences":[{"source":"PROSITE-ProRule","id":"PRU01379","evidenceCode":"ECO:0000255"},{"source":"PDB","id":"1PCA","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues2
DetailsAnnotated By Reference To The Literature 1cbx
ChainResidueDetails
AARG127
AGLU270

site_idCSA2
Number of Residues3
DetailsAnnotated By Reference To The Literature 1cbx
ChainResidueDetails
AARG71
AGLU270
AARG127

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PDB entries from 2025-12-24

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