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4EQC

Crystal structure of PAK1 kinase domain in complex with FRAX597 inhibitor

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 XR1 A 601
ChainResidue
AALA297
ALEU347
AGLY350
AASP354
ALEU396
ATHR406
ATHR541
AHOH731
AHOH905
AHOH908
AARG299
AGLU315
AILE316
AMET319
AVAL342
AMET344
AGLU345
ATYR346

site_idAC2
Number of Residues3
DetailsBINDING SITE FOR RESIDUE CL A 602
ChainResidue
AALA348
AGLY398
AMET399

site_idAC3
Number of Residues3
DetailsBINDING SITE FOR RESIDUE CL A 603
ChainResidue
AASN302
AGLN305
AGLN306

Functional Information from PROSITE/UniProt
site_idPS00108
Number of Residues13
DetailsPROTEIN_KINASE_ST Serine/Threonine protein kinases active-site signature. ViHrDIKsdNILL
ChainResidueDetails
AVAL385-LEU397

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues1
DetailsActive site: {"description":"Proton acceptor","evidences":[{"source":"PubMed","id":"22153498","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues11
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"22153498","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues1
DetailsModified residue: {"description":"Phosphotyrosine; by JAK2","evidences":[{"source":"PubMed","id":"17726028","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"17989089","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues1
DetailsModified residue: {"description":"Phosphothreonine; by autocatalysis, BRSK2 and PDPK1","evidences":[{"source":"PubMed","id":"10551809","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"10995762","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"22153498","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"22669945","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

239803

PDB entries from 2025-08-06

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