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2YCF

Crystal Structure of Checkpoint Kinase 2 in complex with Inhibitor PV1531

Functional Information from GO Data
ChainGOidnamespacecontents
A0004672molecular_functionprotein kinase activity
A0005524molecular_functionATP binding
A0006468biological_processprotein phosphorylation
Functional Information from PDB Data
site_idAC1
Number of Residues18
DetailsBINDING SITE FOR RESIDUE YCF A 600
ChainResidue
ALYS224
ALEU354
ATHR367
AASP368
AGLY370
AHOH2059
AHOH2066
AHOH2112
AHOH2132
AHOH2256
ALEU226
ACYS231
AILE251
AGLU273
ALEU301
AMET304
AGLU305
AGLY307

site_idAC2
Number of Residues6
DetailsBINDING SITE FOR RESIDUE MG A 601
ChainResidue
AASP347
AASP368
AHOH2107
AHOH2132
AHOH2133
AHOH2138

site_idAC3
Number of Residues7
DetailsBINDING SITE FOR RESIDUE NO3 A 602
ChainResidue
ALEU375
AGLY403
ATYR404
AASN405
AARG406
AHOH2258
AHOH2259

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 Residues26
DetailsRegion: {"description":"T-loop/activation segment"}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues1
DetailsActive site: {"description":"Proton acceptor"}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues16
DetailsBinding site: {}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues1
DetailsModified residue: {"description":"Phosphoserine; by autocatalysis","evidences":[{"source":"PubMed","id":"18644861","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues2
DetailsModified residue: {"description":"Phosphothreonine; by autocatalysis","evidences":[{"source":"PubMed","id":"11390408","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues1
DetailsModified residue: {"description":"Phosphoserine","evidences":[{"source":"PubMed","id":"17715138","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

239149

PDB entries from 2025-07-23

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