Structure of PDB 3pa4 Chain A

Receptor sequence
>3pa4A (length=257) Species: 9606 (Homo sapiens) [Search protein sequence]
VEDWDLVQTLGEGAGEVQLAVNRVTEEAVAVKIVDMNIKKEICINKMLNH
ENVVKFYGHRREGNIQYLFLEYCSGGELFDRIEPDIGMPEPDAQRFFHQL
MAGVVYLHGIGITHRDIKPENLLLDERDNLKISDFGLATVFRYNNRERLL
NKMCGTLPYVAPELLKRREFHAEPVDVWSCGIVLTAMLAGELPWDQPSDS
CQEYSDWKEKKTYLNPWKKIDSAPLALLHKILVENPSARITIPDIKKDRW
YNKPLKK
3D structure
PDB3pa4 Design, synthesis and SAR of thienopyridines as potent CHK1 inhibitors.
ChainA
Resolution1.59 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) D130 K132 E134 N135 D148 T170
Catalytic site (residue number reindexed from 1) D116 K118 E120 N121 D134 T156
Enzyme Commision number 2.7.11.1: non-specific serine/threonine protein kinase.
Interaction with ligand
Site
#		 Ligand Ligand
chain		 Binding residues on receptor
(original residue number in PDB)		 Binding residues on receptor
(residue number reindexed from 1)		 Binding affinity
BS01 C72 A L15 E17 A36 E85 Y86 C87 G90 E134 N135 L137 D148 K271 L10 E12 A30 E71 Y72 C73 G76 E120 N121 L123 D134 K257 MOAD: ic50=3nM
PDBbind-CN: -logKd/Ki=8.52,IC50=3nM
BindingDB: IC50=3nM
Gene Ontology
Molecular Function
GO:0004672 protein kinase activity
GO:0004674 protein serine/threonine kinase activity
GO:0005524 ATP binding
Biological Process
GO:0000077 DNA damage checkpoint signaling
GO:0006468 protein phosphorylation

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Molecular Function
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Biological Process
External links
PDB RCSB:3pa4, PDBe:3pa4, PDBj:3pa4
PDBsum3pa4
PubMed21074424
UniProtO14757|CHK1_HUMAN Serine/threonine-protein kinase Chk1 (Gene Name=CHEK1)

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