PDBe 3ucn

X-ray diffraction
2.25Å resolution

Coccomyxa beta-carbonic anhydrase in complex with azide


Function and Biology Details

Reaction catalysed:
H(2)CO(3) = CO(2) + H(2)O. 
Biochemical function:
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Entry contents:
1 distinct polypeptide molecule
Carbonic anhydrase Chains: A, B
Molecule details ›
Chains: A, B
Length: 227 amino acids
Theoretical weight: 24.73 KDa
Source organism: Coccomyxa sp. PA
Expression system: Escherichia coli
  • Canonical: Q96554 (Residues: 1-227; Coverage: 100%)
Sequence domains: Carbonic anhydrase
Structure domains: Beta-carbonic Anhydrase; Chain A

Ligands and Environments

3 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ENRAF-NONIUS FR591
Spacegroup: P43212
Unit cell:
a: 75.651Å b: 75.651Å c: 222.221Å
α: 90° β: 90° γ: 90°
R R work R free
0.161 0.159 0.2
Expression system: Escherichia coli