3vr8

X-ray diffraction
2.81Å resolution

Mitochondrial rhodoquinol-fumarate reductase from the parasitic nematode Ascaris suum

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
PDBe Complex ID:
PDB-CPX-129184 (preferred)
Entry contents:
4 distinct polypeptide molecules
Macromolecules (4 distinct):
Succinate dehydrogenase [rhodoquinone] flavoprotein subunit 1, mitochondrial Chains: A, E
Succinate dehydrogenase [ubiquinone] iron-sulfur subunit, mitochondrial Chains: B, F
Molecule details ›
Chains: B, F
Length: 282 amino acids
Theoretical weight: 31.67 KDa
Source organism: Ascaris suum
UniProt:
  • Canonical: O44074 (Residues: 1-282; Coverage: 100%)
Gene name: SDHB
Sequence domains:
Structure domains:
Succinate dehydrogenase [ubiquinone] cytochrome b large subunit, mitochondrial Chains: C, G
Molecule details ›
Chains: C, G
Length: 188 amino acids
Theoretical weight: 21.17 KDa
Source organism: Ascaris suum
UniProt:
  • Canonical: P92506 (Residues: 1-188; Coverage: 100%)
Gene name: SDHC
Sequence domains: Succinate dehydrogenase/Fumarate reductase transmembrane subunit
Structure domains: Fumarate reductase/succinate dehydrogenase, transmembrane subunit
Succinate dehydrogenase [ubiquinone] cytochrome b small subunit 1, mitochondrial Chains: D, H
Molecule details ›
Chains: D, H
Length: 156 amino acids
Theoretical weight: 17.01 KDa
Source organism: Ascaris suum
UniProt:
  • Canonical: P92507 (Residues: 1-156; Coverage: 100%)
Gene name: SDHD1
Sequence domains: CybS, succinate dehydrogenase cytochrome B small subunit
Structure domains: Fumarate reductase/succinate dehydrogenase, transmembrane subunit

Ligands and Environments


Cofactor: Ligand HEM 2 x HEM

Cofactor: Ligand FAD 2 x FAD
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SPRING-8 BEAMLINE BL44XU
Spacegroup: P212121
Unit cell:
a: 123.707Å b: 129.09Å c: 221.167Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.234 0.231 0.297