PDBe 4e5q

X-ray diffraction
1.7Å resolution

Human Carbonic Anhydrase II in complex with cyanate

Source organism: Homo sapiens
Primary publication:
Human carbonic anhydrase II-cyanate inhibitor complex: putting the debate to rest.
Acta Crystallogr F Struct Biol Commun 70 1324-7 (2014)
PMID: 25286933

Function and Biology Details

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Carbonic anhydrase 2 Chain: A
Molecule details ›
Chain: A
Length: 260 amino acids
Theoretical weight: 29.29 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
  • Canonical: P00918 (Residues: 1-260; Coverage: 100%)
Gene name: CA2
Sequence domains: Eukaryotic-type carbonic anhydrase
Structure domains: Alpha carbonic anhydrase

Ligands and Environments

2 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU RUH3R
Spacegroup: P21
Unit cell:
a: 42.192Å b: 41.01Å c: 71.536Å
α: 90° β: 104.51° γ: 90°
R R work R free
0.174 0.172 0.201
Expression system: Escherichia coli BL21(DE3)