PDBe 3mhi

X-ray diffraction
1.7Å resolution

Crystal structure of human carbonic anhydrase isozyme II with 4-{[(5-nitro-6-oxo-1,6-dihydro-4-pyrimidinyl)amino]methyl}benzenesulfonamide


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

3 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU RUH3R
Spacegroup: P21
Unit cell:
a: 42.242Å b: 41.24Å c: 71.95Å
α: 90° β: 104.43° γ: 90°
R R work R free
0.167 0.162 0.215
Expression system: Escherichia coli BL21(DE3)