1kf6

X-ray diffraction
2.7Å resolution

E. coli Quinol-Fumarate Reductase with Bound Inhibitor HQNO

Released:

Function and Biology Details

Structure analysis Details

Assemblies composition:
hetero tetramer
hetero octamer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-132439 (preferred)
Entry contents:
4 distinct polypeptide molecules
Macromolecules (4 distinct):
Fumarate reductase flavoprotein subunit Chains: A, M
Molecule details ›
Chains: A, M
Length: 602 amino acids
Theoretical weight: 66.06 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli
UniProt:
  • Canonical: P00363 (Residues: 1-602; Coverage: 100%)
Gene names: JW4115, b4154, frdA
Sequence domains:
Structure domains:
Fumarate reductase iron-sulfur subunit Chains: B, N
Molecule details ›
Chains: B, N
Length: 243 amino acids
Theoretical weight: 27.02 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli
UniProt:
  • Canonical: P0AC47 (Residues: 2-244; Coverage: 100%)
Gene names: JW4114, b4153, frdB
Sequence domains:
Structure domains:
Fumarate reductase subunit C Chains: C, O
Molecule details ›
Chains: C, O
Length: 130 amino acids
Theoretical weight: 14.9 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli
UniProt:
  • Canonical: P0A8Q0 (Residues: 2-131; Coverage: 99%)
Gene names: JW4113, b4152, frdC
Sequence domains: Fumarate reductase subunit C
Structure domains: Fumarate reductase/succinate dehydrogenase, transmembrane subunit
Fumarate reductase subunit D Chains: D, P
Molecule details ›
Chains: D, P
Length: 119 amino acids
Theoretical weight: 13.12 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli
UniProt:
  • Canonical: P0A8Q3 (Residues: 1-119; Coverage: 100%)
Gene names: JW4112, b4151, frdD
Sequence domains: Fumarate reductase subunit D
Structure domains: Fumarate reductase/succinate dehydrogenase, transmembrane subunit

Ligands and Environments

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRL BEAMLINE BL9-1
Spacegroup: P212121
Unit cell:
a: 96.505Å b: 137.836Å c: 273.451Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.231 0.231 0.28
Expression system: Escherichia coli