Structure of PDB 2ycs Chain A

Receptor sequence
>2ycsA (length=281) Species: 9606 (Homo sapiens) [Search protein sequence]
SVYPKALRDEYIMSKTLGSGEVKLAFERKTCKKVAIKIISKNVETEIEIL
KKLNHPCIIKIKNFFDAEDYYIVLELMEGGELFDKVVGNKRLKEATCKLY
FYQMLLAVQYLHENGIIHRDLKPENVLLSSQEEDCLIKITDFGHSKILTS
LMRTLCGTPTYLAPEVLVSVGTAGYNRAVDCWSLGVILFICLSGYPPFSE
HRTQVSLKDQITSGKYNFIPEVWAEVSEKALDLVKKLLVVDPKARFTTEE
ALRHPWLQDEDMKRKFQDLLSEENESTALPQ
3D structure
PDB2ycs Structural Characterization of Inhibitor Complexes with Checkpoint Kinase 2 (Chk2), a Drug Target for Cancer Therapy.
ChainA
Resolution2.35 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) D347 K349 N352 D368 T387
Catalytic site (residue number reindexed from 1) D120 K122 N125 D141 T158
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 NXP A V234 K249 E273 L301 M304 G307 E308 L354 T367 D368 V22 K37 E46 L74 M77 G80 E81 L127 T140 D141 MOAD: ic50=1.36nM
PDBbind-CN: -logKd/Ki=8.87,IC50=1.36nM
Gene Ontology
Molecular Function
GO:0004672 protein kinase activity
GO:0005524 ATP binding
Biological Process
GO:0006468 protein phosphorylation

View graph for
Molecular Function

View graph for
Biological Process
External links
PDB RCSB:2ycs, PDBe:2ycs, PDBj:2ycs
PDBsum2ycs
PubMed21963792
UniProtO96017|CHK2_HUMAN Serine/threonine-protein kinase Chk2 (Gene Name=CHEK2)

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