› 1qnn

X-ray diffraction
1.8Å resolution

Cambialistic superoxide dismutase from Porphyromonas gingivalis

Released:
DOI: 10.2210/pdb1qnn/pdb
PDB entry 1qnn coloured by chain, front view.
PDB entry 1qnn coloured by chain, side view.
PDB entry 1qnn coloured by chain, top view.
Source organism: Porphyromonas gingivalis
Primary publication:
Crystal structure of cambialistic superoxide dismutase from porphyromonas gingivalis.
Sugio S, Hiraoka BY, Yamakura F
Eur J Biochem 267 3487-95 (2000)
PMID: 10848964

Function and Biology Details

Reaction catalysed: 
2 superoxide + 2 H(+) = O(2) + H(2)O(2)
Biochemical function:
Biological process:
Cellular component:
  • not assigned
Sequence domains:
Structure domains:

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-148684 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Superoxide dismutase [Mn/Fe] Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 191 amino acids
Theoretical weight: 21.53 KDa
Source organism: Porphyromonas gingivalis
Expression system: Escherichia coli
UniProt:
  • Canonical: P19665 (Residues: 1-191; Coverage: 100%)
Gene names: PG_1545, sod, sodB
Sequence domains:

Ligands and Environments

1 bound ligand:
Ligand FE 4 x FE
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU RUH2R
Spacegroup: P212121
Unit cell:
a: 75.47Å b: 102.66Å c: 99.59Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.179 0.179 0.223
Expression system: Escherichia coli

Quick links

Citations

1 review citation

The structural biochemistry of the superoxide dismutases.
Perry et al. (2010)
17 other articles

1 mention without citation

The distinctive roles played by the superoxide dismutases of the extremophile Acinetobacter sp. Ver3.
Steimbrüch et al. (2022)