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3CKX

Crystal structure of sterile 20-like kinase 3 (MST3, STK24) in complex with staurosporine

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 Residues12
DetailsBINDING SITE FOR RESIDUE STU A 305
ChainResidue
AILE15
AASN134
ALEU136
AASP147
AGLY16
AALA36
AMET84
AGLU85
ATYR86
ALEU87
ASER91
AALA133

Functional Information from PROSITE/UniProt
site_idPS00107
Number of Residues24
DetailsPROTEIN_KINASE_ATP Protein kinases ATP-binding region signature. IGKGSFGEVFkGidnrtqkv..........VAIK
ChainResidueDetails
AILE15-LYS38

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues14
DetailsMotif: {"description":"Bipartite nuclear localization signal"}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues1
DetailsActive site: {"description":"Proton acceptor","evidences":[{"source":"PROSITE-ProRule","id":"PRU00159","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues13
DetailsBinding site: {}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues1
DetailsModified residue: {"description":"Phosphothreonine; by autocatalysis","evidences":[{"source":"PubMed","id":"17046825","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"19604147","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"20124694","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"23186163","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues2
DetailsAnnotated By Reference To The Literature 1ir3
ChainResidueDetails
AALA133
AASP129

site_idCSA2
Number of Residues2
DetailsAnnotated By Reference To The Literature 1ir3
ChainResidueDetails
ALYS131
AASP129

site_idCSA3
Number of Residues3
DetailsAnnotated By Reference To The Literature 1ir3
ChainResidueDetails
ALYS131
ATHR167
AASP129

site_idCSA4
Number of Residues3
DetailsAnnotated By Reference To The Literature 1ir3
ChainResidueDetails
ALYS131
AASN134
AASP129

239149

PDB entries from 2025-07-23

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