PDBe 4qj0

X-ray diffraction
1.55Å resolution

Crystal structure of catalytic domain of human carbonic anhydrase isozyme XII with inhibitor


Function and Biology Details

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
Carbonic anhydrase 12 Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 263 amino acids
Theoretical weight: 29.92 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
  • Canonical: O43570 (Residues: 30-291; Coverage: 79%)
Gene name: CA12
Sequence domains: Eukaryotic-type carbonic anhydrase
Structure domains: Alpha carbonic anhydrase

Ligands and Environments

3 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: PETRA III, EMBL c/o DESY BEAMLINE P14 (MX2)
Spacegroup: P21
Unit cell:
a: 77.51Å b: 74.242Å c: 91.416Å
α: 90° β: 108.87° γ: 90°
R R work R free
0.185 0.18 0.225
Expression system: Escherichia coli