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2AR9

Crystal structure of a dimeric caspase-9

Functional Information from GO Data
ChainGOidnamespacecontents
A0004197molecular_functioncysteine-type endopeptidase activity
A0006508biological_processproteolysis
A0008234molecular_functioncysteine-type peptidase activity
B0004197molecular_functioncysteine-type endopeptidase activity
B0006508biological_processproteolysis
B0008234molecular_functioncysteine-type peptidase activity
C0004197molecular_functioncysteine-type endopeptidase activity
C0006508biological_processproteolysis
C0008234molecular_functioncysteine-type peptidase activity
D0004197molecular_functioncysteine-type endopeptidase activity
D0006508biological_processproteolysis
D0008234molecular_functioncysteine-type peptidase activity
Functional Information from PDB Data
site_idAC1
Number of Residues2
DetailsBINDING SITE FOR RESIDUE MLT A 668
ChainResidue
ATRP354
AARG355

Functional Information from PROSITE/UniProt
site_idPS01121
Number of Residues15
DetailsCASPASE_HIS Caspase family histidine active site. HgaldCcvVvILSHG
ChainResidueDetails
AHIS224-GLY238

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues8
DetailsActive site: {"evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues4
DetailsModified residue: {"description":"Phosphotyrosine; by ABL1","evidences":[{"source":"PubMed","id":"15657060","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues4
DetailsModified residue: {"description":"(Microbial infection) ADP-riboxanated arginine","evidences":[{"source":"PubMed","id":"35338844","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"35446120","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues4
DetailsAnnotated By Reference To The Literature 1nw9
ChainResidueDetails
ASER287
AGLY238
AHIS237
AARG178

site_idCSA2
Number of Residues4
DetailsAnnotated By Reference To The Literature 1nw9
ChainResidueDetails
BSER287
BGLY238
BHIS237
BARG178

site_idCSA3
Number of Residues4
DetailsAnnotated By Reference To The Literature 1nw9
ChainResidueDetails
CSER287
CGLY238
CHIS237
CARG178

site_idCSA4
Number of Residues4
DetailsAnnotated By Reference To The Literature 1nw9
ChainResidueDetails
DSER287
DGLY238
DHIS237
DARG178

site_idMCSA1
Number of Residues4
DetailsM-CSA 816
ChainResidueDetails
AARG178electrostatic stabiliser
AHIS237proton acceptor, proton donor
AGLY238electrostatic stabiliser
ASER287nucleofuge, nucleophile, proton acceptor, proton donor

site_idMCSA2
Number of Residues4
DetailsM-CSA 816
ChainResidueDetails
BARG178electrostatic stabiliser
BHIS237proton acceptor, proton donor
BGLY238electrostatic stabiliser
BSER287nucleofuge, nucleophile, proton acceptor, proton donor

site_idMCSA3
Number of Residues4
DetailsM-CSA 816
ChainResidueDetails
CARG178electrostatic stabiliser
CHIS237proton acceptor, proton donor
CGLY238electrostatic stabiliser
CSER287nucleofuge, nucleophile, proton acceptor, proton donor

site_idMCSA4
Number of Residues4
DetailsM-CSA 816
ChainResidueDetails
DARG178electrostatic stabiliser
DHIS237proton acceptor, proton donor
DGLY238electrostatic stabiliser
DSER287nucleofuge, nucleophile, proton acceptor, proton donor

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PDB entries from 2025-10-08

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