PDBe 3dbc

X-ray diffraction
3.35Å resolution

Crystal structure of an activated (Thr->Asp) Polo-like kinase 1 (Plk1) catalytic domain in complex with Compound 257


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 PLK Chain: A
Molecule details ›
Chain: A
Length: 317 amino acids
Theoretical weight: 35.99 KDa
Source organism: Danio rerio
Expression system: Escherichia coli
  • Canonical: Q4KMI8 (Residues: 1-312; Coverage: 52%)
Gene name: plk1
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: SSRL BEAMLINE BL9-1
Spacegroup: I23
Unit cell:
a: 135.066Å b: 135.066Å c: 135.066Å
α: 90° β: 90° γ: 90°
R R work R free
0.245 0.238 0.288
Expression system: Escherichia coli