› 1cai

X-ray diffraction
1.8Å resolution

STRUCTURAL ANALYSIS OF THE ZINC HYDROXIDE-THR 199-GLU 106 HYDROGEN BONDING NETWORK IN HUMAN CARBONIC ANHYDRASE II

Released:
DOI: 10.2210/pdb1cai/pdb
PDB entry 1cai coloured by chain, front view.
PDB entry 1cai coloured by chain, side view.
PDB entry 1cai coloured by chain, top view.
Source organism: Homo sapiens
Primary publication:
Structural analysis of the zinc hydroxide-Thr-199-Glu-106 hydrogen-bond network in human carbonic anhydrase II.
Xue Y, Liljas A, Jonsson BH, Lindskog S
Proteins 17 93-106 (1993)
PMID: 7901850

Function and Biology Details

Reactions catalysed: 
H(2)CO(3) = CO(2) + H(2)O
Urea = cyanamide + H(2)O
Biochemical function:
Biological process:
Cellular component:
Sequence domains:
Structure domain:

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-133681 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Carbonic anhydrase 2 Chain: A
Molecule details ›
Chain: A
Length: 259 amino acids
Theoretical weight: 29.1 KDa
Source organism: Homo sapiens
Expression system: Not provided
UniProt:
  • Canonical: P00918 (Residues: 2-260; Coverage: 100%)
Gene name: CA2
Sequence domains: Eukaryotic-type carbonic anhydrase
Structure domains: Alpha carbonic anhydrase

Ligands and Environments

2 bound ligands:
Ligand ZN 1 x ZN
Ligand SO4 1 x SO4
No modified residues

Experiments and Validation Details

Entry percentile scores
Spacegroup: P21
Unit cell:
a: 42.7Å b: 41.7Å c: 73Å
α: 90° β: 104.6° γ: 90°
R-values:
R R work R free
0.161 not available not available
Expression system: Not provided

Quick links

Citations

7 review citations

Carbonic anhydrase as a model for biophysical and physical-organic studies of proteins and protein-ligand binding.
Krishnamurthy et al. (2008)
6 more

1 mention without citation

Molecular Characterization of Coxsackievirus B5 Isolates from Sewage, Italy 2016-2017.
Fontana et al. (2019)