X-ray diffraction
2.33Å resolution

respiratory complex II-like fumarate reductase from Wolinella succinogenes


Function and Biology Details

Structure analysis Details

Assembly composition:
hetero hexamer (preferred)
Entry contents:
3 distinct polypeptide molecules
Macromolecules (3 distinct):
Fumarate reductase flavoprotein subunit Chains: A, D
Fumarate reductase iron-sulfur subunit Chains: B, E
Molecule details ›
Chains: B, E
Length: 239 amino acids
Theoretical weight: 27.2 KDa
Source organism: Wolinella succinogenes
  • Canonical: P17596 (Residues: 1-239; Coverage: 100%)
Gene names: WS0830, frdB
Sequence domains:
Structure domains:
Fumarate reductase cytochrome b subunit Chains: C, F
Molecule details ›
Chains: C, F
Length: 256 amino acids
Theoretical weight: 29.76 KDa
Source organism: Wolinella succinogenes
  • Canonical: P17413 (Residues: 1-256; Coverage: 100%)
Gene names: WS0832, frdC
Sequence domains: Succinate dehydrogenase/Fumarate reductase transmembrane subunit
Structure domains: Fumarate reductase/succinate dehydrogenase, transmembrane subunit

Ligands and Environments

Cofactor: Ligand HEM 4 x HEM

Cofactor: Ligand FAD 2 x FAD

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE BM14
Spacegroup: P21
Unit cell:
a: 118.4Å b: 85.05Å c: 188.85Å
α: 90° β: 96.46° γ: 90°
R R work R free
0.213 0.213 0.223