PDBe 1cm4

X-ray diffraction
2Å resolution

Motions of calmodulin-four-conformer refinement


Function and Biology Details

Reaction catalysed:
ATP + a protein = ADP + a phosphoprotein

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Calmodulin Chain: A
Molecule details ›
Chain: A
Length: 148 amino acids
Theoretical weight: 16.72 KDa
Source organism: Bos taurus
  • Canonical: P62157 (Residues: 2-149; Coverage: 99%)
Gene names: CALM, CAM
Sequence domains: EF-hand domain pair
Structure domains: EF-hand
Calcium/calmodulin-dependent protein kinase type II subunit alpha Chain: B
Molecule details ›
Chain: B
Length: 25 amino acids
Theoretical weight: 2.89 KDa
Source organism: Rattus norvegicus
Expression system: Not provided
  • Canonical: P11275 (Residues: 290-314; Coverage: 5%)
Gene name: Camk2a

Ligands and Environments

1 bound ligand:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: CHESS BEAMLINE F2
Spacegroup: C2221
Unit cell:
a: 38.751Å b: 75.209Å c: 120.073Å
α: 90° β: 90° γ: 90°
R R work R free
0.166 0.166 0.262
Expression system: Not provided