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3I6U

Structure and Activation Mechanism of the CHK2 DNA-Damage Checkpoint Kinase

Functional Information from GO Data
ChainGOidnamespacecontents
A0004672molecular_functionprotein kinase activity
A0005524molecular_functionATP binding
A0006468biological_processprotein phosphorylation
B0004672molecular_functionprotein kinase activity
B0005524molecular_functionATP binding
B0006468biological_processprotein phosphorylation
Functional Information from PROSITE/UniProt
site_idPS00108
Number of Residues13
DetailsPROTEIN_KINASE_ST Serine/Threonine protein kinases active-site signature. IiHrDLKpeNVLL
ChainResidueDetails
AILE343-LEU355

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues124
DetailsDomain: {"description":"FHA","evidences":[{"source":"PROSITE-ProRule","id":"PRU00086","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues2
DetailsActive site: {"description":"Proton acceptor"}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues32
DetailsBinding site: {}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues2
DetailsModified residue: {"description":"Phosphoserine","evidences":[{"source":"PubMed","id":"17715138","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues2
DetailsAnnotated By Reference To The Literature 1ir3
ChainResidueDetails
AASP347
AGLU351

site_idCSA2
Number of Residues2
DetailsAnnotated By Reference To The Literature 1ir3
ChainResidueDetails
BASP347
BGLU351

site_idCSA3
Number of Residues2
DetailsAnnotated By Reference To The Literature 1ir3
ChainResidueDetails
AASP347
ALYS349

site_idCSA4
Number of Residues2
DetailsAnnotated By Reference To The Literature 1ir3
ChainResidueDetails
BASP347
BLYS349

site_idCSA5
Number of Residues3
DetailsAnnotated By Reference To The Literature 1ir3
ChainResidueDetails
AASP347
AASN352
ALYS349

site_idCSA6
Number of Residues3
DetailsAnnotated By Reference To The Literature 1ir3
ChainResidueDetails
BASP347
BASN352
BLYS349

247536

PDB entries from 2026-01-14

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