PDBe 4hex

X-ray diffraction
2Å resolution

A novel conformation of calmodulin

Source organism: Mus musculus
Primary publication:
A novel trans conformation of ligand-free calmodulin.
OpenAccess logo PLoS ONE 8 e54834 (2013)
PMID: 23382982

Function and Biology Details

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
Calmodulin-2 Chains: A, B
Molecule details ›
Chains: A, B
Length: 156 amino acids
Theoretical weight: 17.81 KDa
Source organism: Mus musculus
Expression system: Escherichia coli
  • Canonical: P0DP27 (Residues: 1-149; Coverage: 100%)
Gene names: Calm2, Cam2, CamC
Sequence domains: EF-hand domain pair

Ligands and Environments

2 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X8C
Spacegroup: P21
Unit cell:
a: 38.827Å b: 116.397Å c: 38.797Å
α: 90° β: 94.83° γ: 90°
R R work R free
0.211 0.21 0.237
Expression system: Escherichia coli