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5PTI

STRUCTURE OF BOVINE PANCREATIC TRYPSIN INHIBITOR. RESULTS OF JOINT NEUTRON AND X-RAY REFINEMENT OF CRYSTAL FORM II

Functional Information from GO Data
ChainGOidnamespacecontents
A0004867molecular_functionserine-type endopeptidase inhibitor activity
Functional Information from PDB Data
site_idAC1
Number of Residues5
DetailsBINDING SITE FOR RESIDUE PO4 A 70
ChainResidue
AARG20
ATYR35
ALYS41
ADOD140
ADOD157

site_idAC2
Number of Residues3
DetailsBINDING SITE FOR RESIDUE UNX A 324
ChainResidue
ATYR23
ACYS30
AMET52

Functional Information from PROSITE/UniProt
site_idPS00280
Number of Residues19
DetailsBPTI_KUNITZ_1 Pancreatic trypsin inhibitor (Kunitz) family signature. FvyGGCrakrnnFksaedC
ChainResidueDetails
APHE33-CYS51

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues50
DetailsDomain: {"description":"BPTI/Kunitz inhibitor","evidences":[{"source":"PROSITE-ProRule","id":"PRU00031","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues1
DetailsSite: {"description":"Reactive bond for trypsin"}
ChainResidueDetails

246704

PDB entries from 2025-12-24

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