› 1fsq

X-ray diffraction
2Å resolution

X-RAY CRYSTAL STRUCTURE OF COBALT-BOUND F93S/F95L/W97M CARBONIC ANHYDRASE (CAII) VARIANT

Released:
DOI: 10.2210/pdb1fsq/pdb
PDB entry 1fsq coloured by chain, front view.
PDB entry 1fsq coloured by chain, side view.
PDB entry 1fsq coloured by chain, top view.
Source organism: Homo sapiens
Primary publication:
Structural influence of hydrophobic core residues on metal binding and specificity in carbonic anhydrase II.
Cox JD, Hunt JA, Compher KM, Fierke CA, Christianson DW
Biochemistry 39 13687-94 (2000)
PMID: 11076507

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 Chains: A, B
Molecule details ›
Chains: A, B
Length: 260 amino acids
Theoretical weight: 29.14 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P00918 (Residues: 1-260; Coverage: 100%)
Gene name: CA2
Sequence domains: Eukaryotic-type carbonic anhydrase
Structure domains: Alpha carbonic anhydrase

Ligands and Environments

1 bound ligand:
Ligand CO 2 x CO
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU
Spacegroup: P1
Unit cell:
a: 42.24Å b: 43.53Å c: 67.14Å
α: 86.9° β: 90.1° γ: 75.4°
R-values:
R R work R free
0.217 0.217 0.25
Expression system: Escherichia coli

Quick links

Citations

5 review citations

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