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1K2I

Crystal Structure of Gamma-Chymotrypsin in Complex with 7-Hydroxycoumarin

Functional Information from GO Data
ChainGOidnamespacecontents
10004252molecular_functionserine-type endopeptidase activity
10005515molecular_functionprotein binding
10005576cellular_componentextracellular region
10006508biological_processproteolysis
10007586biological_processdigestion
10008236molecular_functionserine-type peptidase activity
10097180cellular_componentserine protease inhibitor complex
10097655molecular_functionserpin family protein binding
Functional Information from PDB Data
site_idAC1
Number of Residues5
DetailsBINDING SITE FOR RESIDUE SO4 1 501
ChainResidue
1LYS36
1SER92
1TRP237
1HOH517
1HOH593

site_idAC2
Number of Residues9
DetailsBINDING SITE FOR RESIDUE SN1 1 400
ChainResidue
1VAL213
1TRP215
1GLY216
1SER217
1HOH635
1SER190
1CYS191
1GLY193
1SER195

Functional Information from PROSITE/UniProt
site_idPS00134
Number of Residues6
DetailsTRYPSIN_HIS Serine proteases, trypsin family, histidine active site. VTAAHC
ChainResidueDetails
1VAL53-CYS58

site_idPS00135
Number of Residues12
DetailsTRYPSIN_SER Serine proteases, trypsin family, serine active site. SScmGDSGGPLV
ChainResidueDetails
1SER189-VAL200

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues3
DetailsACT_SITE: Charge relay system
ChainResidueDetails
1HIS57
1ASP102
1SER195

Catalytic Information from CSA
site_idMCSA1
Number of Residues5
DetailsM-CSA 387
ChainResidueDetails
1HIS57electrostatic stabiliser, proton shuttle (general acid/base)
1ASP102modifies pKa
1GLY193electrostatic stabiliser
1SER195covalent catalysis
1GLY196electrostatic stabiliser

site_idCSA1
Number of Residues2
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
1ASP102
1HIS57

site_idCSA2
Number of Residues2
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
1SER195
1GLY196

site_idCSA3
Number of Residues2
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
1SER195
1GLY193

site_idCSA4
Number of Residues3
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
1ASP102
1SER195
1HIS57

site_idCSA5
Number of Residues4
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
1ASP102
1SER195
1HIS57
1GLY196

site_idCSA6
Number of Residues4
DetailsAnnotated By Reference To The Literature 1a0j
ChainResidueDetails
1ASP102
1SER195
1GLY193
1HIS57

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PDB entries from 2024-05-01

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