PDBe 1ia8

X-ray diffraction
1.7Å resolution

THE 1.7 A CRYSTAL STRUCTURE OF HUMAN CELL CYCLE CHECKPOINT KINASE CHK1

Released:

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
Macromolecule:
Serine/threonine-protein kinase Chk1 Chain: A
Molecule details ›
Chain: A
Length: 289 amino acids
Theoretical weight: 33.04 KDa
Source organism: Homo sapiens
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: O14757 (Residues: 1-289; Coverage: 61%)
Gene names: CHEK1, CHK1
Sequence domains: Protein kinase domain
Structure domains:

Ligands and Environments

1 bound ligand:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU RU200
Spacegroup: P21
Unit cell:
a: 45.2Å b: 65.7Å c: 58.1Å
α: 90° β: 93.9° γ: 90°
R-values:
R R work R free
0.216 0.216 0.235
Expression system: Spodoptera frugiperda