PDBe 1uhk

X-ray diffraction
1.6Å resolution

Crystal structure of n-aequorin

Source organism: Aequorea victoria
Primary publication:
The crystal structures of semi-synthetic aequorins.
Protein Sci. 14 409-16 (2005)
PMID: 15632284

Function and Biology Details

Biochemical function:
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Aequorin-2 Chains: A, B
Molecule details ›
Chains: A, B
Length: 191 amino acids
Theoretical weight: 21.66 KDa
Source organism: Aequorea victoria
Expression system: Escherichia coli
  • Canonical: P02592 (Residues: 9-196; Coverage: 96%)
Sequence domains: EF hand
Structure domains: EF-hand

Ligands and Environments

1 bound ligand:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SPRING-8 BEAMLINE BL44XU
Spacegroup: P1
Unit cell:
a: 34.223Å b: 57.038Å c: 57.768Å
α: 72.35° β: 79.97° γ: 67.89°
R R work R free
0.166 0.164 0.199
Expression system: Escherichia coli