PDBe 3e3i

X-ray diffraction
2Å resolution

H. influenzae beta-carbonic anhydrase, variant G41A with 100 mM bicarbonate


Function and Biology Details

Reaction catalysed:
H(2)CO(3) = CO(2) + H(2)O. 
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Entry contents:
1 distinct polypeptide molecule
Carbonic anhydrase 2 Chains: A, B, C, D, E, F, G, H, I, J, K, L
Molecule details ›
Chains: A, B, C, D, E, F, G, H, I, J, K, L
Length: 229 amino acids
Theoretical weight: 26.3 KDa
Source organism: Haemophilus influenzae
Expression system: Escherichia coli
  • Canonical: P45148 (Residues: 1-229; Coverage: 100%)
Gene names: HI_1301, can
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: CHESS BEAMLINE F2
Spacegroup: C2
Unit cell:
a: 229.593Å b: 144.437Å c: 104.891Å
α: 90° β: 94.43° γ: 90°
R R work R free
0.203 0.201 0.236
Expression system: Escherichia coli