Structure of PDB 4fsn Chain A

Receptor sequence
>4fsnA (length=270) Species: 9606 (Homo sapiens) [Search protein sequence]
APFVEDWDLVQTLGEGAGEVQLAVNRVTEEAVAVKIVDMENIKKEICINK
MLNHENVVKFYGHRREGNIQYLFLEYCSGGELFDRIEPDIGMPEPDAQRF
FHQLMAGVVYLHGIGITHRDIKPENLLLDERDNLKISDFGLATVFRYNNR
ERLLNKMCGTLPYVAPELLKRREFHAEPVDVWSCGIVLTAMLAGELPWDQ
PSDSCQEYSDWKEKKTYLNPWKKIDSAPLALLHKILVENPSARITIPDIK
KDRWYNKPLKKGAKRPRVTS
3D structure
PDB4fsn Crystal Structure of the CHK1
ChainA
Resolution2.1 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) D120 K122 E124 N125 D138 T160
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 A58 A L15 K38 L84 Y86 C87 G90 L137 D148 L13 K35 L74 Y76 C77 G80 L127 D138 BindingDB: IC50=20nM
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:4fsn, PDBe:4fsn, PDBj:4fsn
PDBsum4fsn
PubMed
UniProtO14757|CHK1_HUMAN Serine/threonine-protein kinase Chk1 (Gene Name=CHEK1)

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