PDBe 2c3j

X-ray diffraction
2.1Å resolution

Identification of a buried pocket for potent and selective inhibition of Chk1: prediction and verification


Function and Biology Details

Reaction catalysed:
ATP + a protein = ADP + a phosphoprotein. 
Biochemical function:
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Serine/threonine-protein kinase Chk1 Chain: A
Molecule details ›
Chain: A
Length: 297 amino acids
Theoretical weight: 34.15 KDa
Source organism: Homo sapiens
Expression system: Spodoptera frugiperda
  • Canonical: O14757 (Residues: 1-293; Coverage: 62%)
Gene names: CHEK1, CHK1
Sequence domains: Protein kinase domain
Structure domains:

Ligands and Environments

2 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID29
Spacegroup: P21
Unit cell:
a: 45.039Å b: 65.853Å c: 54.582Å
α: 90° β: 102.53° γ: 90°
R R work R free
0.186 0.182 0.262
Expression system: Spodoptera frugiperda