2ccm

X-ray diffraction
1.8Å resolution

X-ray structure of Calexcitin from Loligo pealeii at 1.8A

Released:

Function and Biology Details

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

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Calexcitin Chains: A, B
Molecule details ›
Chains: A, B
Length: 191 amino acids
Theoretical weight: 22.3 KDa
Source organism: Doryteuthis pealeii
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: O76764 (Residues: 1-191; Coverage: 100%)
Gene name: cex
Structure domains: EF-hand

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-1
Spacegroup: P212121
Unit cell:
a: 46.635Å b: 69.222Å c: 134.787Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.191 0.191 0.249
Expression system: Escherichia coli BL21(DE3)