Structure analysis

Structure of Calmodulin complexed with its first endogenous inhibitor, sphingosylphosphorylcholine

X-ray diffraction
1.6Å resolution
Source organism: Bos taurus
Assembly composition:
monomeric (preferred)
Entry contents: 1 distinct polypeptide molecule


Assembly 1 (preferred)
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Multimeric state: monomeric
Accessible surface area: 7600 Å2
Buried surface area: 3700 Å2
Dissociation area: 300 Å2
Dissociation energy (ΔGdiss): 3 kcal/mol
Dissociation entropy (TΔSdiss): 1 kcal/mol
Interface energy (ΔGint): -86 kcal/mol
Symmetry number: 1


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
Pfam: EF-hand domain pair
CATH: EF-hand

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