Structure of PDB 1nvs Chain A

Receptor sequence
>1nvsA (length=264) Species: 9606 (Homo sapiens) [Search protein sequence]
VPFVEDWDLVQTLGEGAYGEVQLAVNRVTEEAVAVKIVDMKNIKKEICIN
KMLNHENVVKFYGHRREGNIQYLFLEYCSGGELFDRIEPDIGMPEPDAQR
FFHQLMAGVVYLHGIGITHRDIKPENLLLDERDNLKISDFGLATVFRYNN
RERLLNKMCGTLPYVAPELLKRREFHAEPVDVWSCGIVLTAMLAGELPWD
QPSDSCQEYSDWKEKKTYLNPWKKIDSAPLALLHKILVENPSARITIPDI
KKDRWYNKPLKKGA
3D structure
PDB1nvs Structural Basis for Chk1 Inhibition by UCN-01
ChainA
Resolution1.8 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) D121 K123 E125 N126 D139 T161
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 peptide A E7 W9 L11 R74 Y81 F83 E5 W7 L9 R65 Y72 F74
BS02 UCM A L15 G16 V23 A36 K38 L84 E85 E91 L137 D148 L13 G14 V21 A34 K36 L75 E76 E82 L128 D139 MOAD: Ki=15nM
PDBbind-CN: -logKd/Ki=7.82,Ki=15nM
BindingDB: IC50=15nM
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:1nvs, PDBe:1nvs, PDBj:1nvs
PDBsum1nvs
PubMed12244092
UniProtO14757|CHK1_HUMAN Serine/threonine-protein kinase Chk1 (Gene Name=CHEK1)

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