PDBe 2nuk

X-ray diffraction
1.2Å resolution

Soluble Domain of the Rieske Iron-Sulfur Protein from Rhodobacter sphaeroides


Function and Biology Details

Reaction catalysed:
Quinol + 2 ferricytochrome c = quinone + 2 ferrocytochrome c + 2 H(+)
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Ubiquinol-cytochrome c reductase iron-sulfur subunit Chain: A
Molecule details ›
Chain: A
Length: 141 amino acids
Theoretical weight: 15.16 KDa
Source organism: Rhodobacter sphaeroides
Expression system: Escherichia coli
  • Canonical: Q02762 (Residues: 47-187; Coverage: 75%)
Gene names: fbcF, petA
Sequence domains: Rieske [2Fe-2S] domain
Structure domains: Rieske [2Fe-2S] iron-sulphur domain

Ligands and Environments

1 bound ligand:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 22-ID
Spacegroup: I4
Unit cell:
a: 70.568Å b: 70.568Å c: 54.769Å
α: 90° β: 90° γ: 90°
R R work R free
0.12 0.118 0.136
Expression system: Escherichia coli