X-ray diffraction
1.6Å resolution

Structure of Calmodulin complexed with its first endogenous inhibitor, sphingosylphosphorylcholine


Function and Biology Details

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
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

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID23-1
Spacegroup: P3221
Unit cell:
a: 39.669Å b: 39.669Å c: 170.34Å
α: 90° β: 90° γ: 120°
R R work R free
0.195 0.192 0.238