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3PWB

Bovine trypsin variant X(tripleGlu217Ile227) in complex with small molecule inhibitor

Functional Information from GO Data
ChainGOidnamespacecontents
A0004175molecular_functionendopeptidase activity
A0004252molecular_functionserine-type endopeptidase activity
A0005515molecular_functionprotein binding
A0005576cellular_componentextracellular region
A0006508biological_processproteolysis
A0097180cellular_componentserine protease inhibitor complex
A0097655molecular_functionserpin family protein binding
Functional Information from PDB Data
site_idAC1
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA A 480
ChainResidue
AGLU70
AASN72
AVAL75
AGLU80
AHOH1010
AHOH1014

site_idAC2
Number of Residues8
DetailsBINDING SITE FOR RESIDUE BEN A 481
ChainResidue
AGLY216
AGLY219
AGLY226
ASO4482
AHOH1005
AASP189
AALA190
ASER195

site_idAC3
Number of Residues8
DetailsBINDING SITE FOR RESIDUE SO4 A 482
ChainResidue
AHIS57
AGLN192
AGLY193
ASER195
ABEN481
AHOH1076
AHOH1129
AHOH1235

site_idAC4
Number of Residues8
DetailsBINDING SITE FOR RESIDUE GOL A 483
ChainResidue
AGLU97
ATHR98
ATYR99
ACYS128
AHOH1130
AHOH1217
AHOH1219
AHOH1391

Functional Information from PROSITE/UniProt
site_idPS00134
Number of Residues6
DetailsTRYPSIN_HIS Serine proteases, trypsin family, histidine active site. VSAAHC
ChainResidueDetails
AVAL53-CYS58

site_idPS00135
Number of Residues12
DetailsTRYPSIN_SER Serine proteases, trypsin family, serine active site. DAcqGDSGGPVV
ChainResidueDetails
AASP189-VAL200

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues220
DetailsDomain: {"description":"Peptidase S1","evidences":[{"source":"PROSITE-ProRule","id":"PRU00274","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues3
DetailsActive site: {"description":"Charge relay system"}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues7
DetailsBinding site: {}
ChainResidueDetails

251174

PDB entries from 2026-03-25

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