› 2esf

X-ray diffraction
2.25Å resolution

Identification of a Novel Non-Catalytic Bicarbonate Binding Site in Eubacterial beta-Carbonic Anhydrase

Released:
DOI: 10.2210/pdb2esf/pdb
PDB entry 2esf coloured by chain, front view.
PDB entry 2esf coloured by chain, side view.
PDB entry 2esf coloured by chain, top view.
Source organism: Escherichia coli
Primary publication:
Identification of a novel noncatalytic bicarbonate binding site in eubacterial beta-carbonic anhydrase.
Cronk JD, Rowlett RS, Zhang KY, Tu C, Endrizzi JA, Lee J, Gareiss PC, Preiss JR
Biochemistry 45 4351-61 (2006)
PMID: 16584170

Function and Biology Details

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

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-158270 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Carbonic anhydrase 2 Chains: A, B
Molecule details ›
Chains: A, B
Length: 220 amino acids
Theoretical weight: 25.13 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P61517 (Residues: 1-220; Coverage: 100%)
Gene names: JW0122, b0126, can, cynT2, yadF
Sequence domains: Carbonic anhydrase
Structure domains: Carbonic anhydrase

Ligands and Environments

2 bound ligands:
Ligand ZN 2 x ZN
Ligand BCT 2 x BCT
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 5.0.1
Spacegroup: P4322
Unit cell:
a: 82.866Å b: 82.866Å c: 162.213Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.2 0.198 0.228
Expression system: Escherichia coli BL21(DE3)

Quick links

Citations

10 review citations

Structure-based drug discovery of carbonic anhydrase inhibitors.
Supuran CT. (2012)
9 more

5 mentions without citation

Protein purification and crystallization artifacts: The tale usually not told.
Niedzialkowska et al. (2016)
4 more