X-ray diffraction
2Å resolution

Crystal structure of Z. mays CK2 kinase alpha subunit in complex with the inhibitor tetraiodobenzimidazole (K88)


Function and Biology Details

Reaction catalysed:
ATP + a protein = ADP + a phosphoprotein
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Casein kinase II subunit alpha Chain: A
Molecule details ›
Chain: A
Length: 327 amino acids
Theoretical weight: 38.67 KDa
Source organism: Zea mays
Expression system: Escherichia coli
  • Canonical: P28523 (Residues: 2-328; Coverage: 99%)
Gene name: ACK2
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: ESRF BEAMLINE ID23-2
Spacegroup: C2
Unit cell:
a: 143.839Å b: 60.901Å c: 46.015Å
α: 90° β: 103.37° γ: 90°
R R work R free
0.21 0.207 0.264
Expression system: Escherichia coli