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4BNR

Extremely stable complex of crayfish trypsin with bovine trypsin inhibitor

Functional Information from GO Data
ChainGOidnamespacecontents
A0004252molecular_functionserine-type endopeptidase activity
A0005515molecular_functionprotein binding
A0006508biological_processproteolysis
A0008236molecular_functionserine-type peptidase activity
A0046872molecular_functionmetal ion binding
B0004252molecular_functionserine-type endopeptidase activity
B0005515molecular_functionprotein binding
B0006508biological_processproteolysis
B0008236molecular_functionserine-type peptidase activity
B0046872molecular_functionmetal ion binding
I0004867molecular_functionserine-type endopeptidase inhibitor activity
J0004867molecular_functionserine-type endopeptidase inhibitor activity
Functional Information from PDB Data
site_idAC1
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA A 600
ChainResidue
AGLU70
AASP72
AVAL75
AGLU77
AGLU80
AHOH2088

site_idAC2
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA A 601
ChainResidue
AGLU231
AHOH2175
AHOH2176
AASP165
AASP178
AMET180

site_idAC3
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA B 600
ChainResidue
BGLU70
BASP72
BVAL75
BGLU77
BGLU80
BHOH2059

site_idAC4
Number of Residues4
DetailsBINDING SITE FOR RESIDUE CA B 601
ChainResidue
BASP165
BASP178
BMET180
BGLU231

site_idAC5
Number of Residues7
DetailsBINDING SITE FOR RESIDUE SO4 I 701
ChainResidue
IPHE4
IARG42
IHOH2005
IHOH2053
IHOH2065
IHOH2066
IHOH2067

site_idAC6
Number of Residues5
DetailsBINDING SITE FOR RESIDUE SO4 J 701
ChainResidue
AHOH2116
JGLU7
JLYS41
JARG42
JHOH2008

Functional Information from PROSITE/UniProt
site_idPS00134
Number of Residues6
DetailsTRYPSIN_HIS Serine proteases, trypsin family, histidine active site. ITAGHC
ChainResidueDetails
AILE53-CYS58

site_idPS00135
Number of Residues12
DetailsTRYPSIN_SER Serine proteases, trypsin family, serine active site. DScqGDSGGPLA
ChainResidueDetails
AASP189-ALA200

site_idPS00141
Number of Residues12
DetailsASP_PROTEASE Eukaryotic and viral aspartyl proteases active site. AASDTGSTYLAG
ChainResidueDetails
AALA200-GLY211

site_idPS00280
Number of Residues19
DetailsBPTI_KUNITZ_1 Pancreatic trypsin inhibitor (Kunitz) family signature. FvyGGCrakrnnFksaedC
ChainResidueDetails
IPHE33-CYS51

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues2
DetailsSITE: Reactive bond for trypsin
ChainResidueDetails
ILYS15
JLYS15

223532

PDB entries from 2024-08-07

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