CATH Classification
| Level | CATH Code | Description |
|---|---|---|
|
1 | Mainly Alpha |
|
1.20 | Up-down Bundle |
|
1.20.5 | Single alpha-helices involved in coiled-coils or other helix-helix interfaces |
|
1.20.5.510 | Single helix bin |
Domain Context
CATH Clusters
| Superfamily | Single helix bin |
| Functional Family |
Enzyme Information
| 7.1.1.8 |
Quinol--cytochrome-c reductase.
based on mapping to UniProt Q02762
Quinol + 2 ferricytochrome c(Side 2) = quinone + 2 ferrocytochrome c(Side 2) + 2 H(+)(Side 2).
-!- The enzyme, often referred to as the cytochrome bc1 complex or complex III, is the third complex in the electron transport chain. -!- It is present in the mitochondria of all aerobic eukaryotes and in the inner membranes of most bacteria. -!- The mammalian enzyme contains cytochromes b-562, b-566 and c(1), and a 2-iron ferredoxin. -!- Depending on the organism and physiological conditions, the enzyme extrudes either two or four protons from the cytoplasmic to the non- cytoplasmic compartment (cf. EC 1.6.99.3). -!- Formerly EC 1.10.2.2.
|
UniProtKB Entries (1)
| Q02762 |
UCRI_RHOSH
Rhodobacter sphaeroides
Ubiquinol-cytochrome c reductase iron-sulfur subunit
|
PDB Structure
| PDB | 5KLI |
| External Links | |
| Method | X-RAY DIFFRACTION |
| Organism | |
| Primary Citation |
Hydrogen Bonding to the Substrate Is Not Required for Rieske Iron-Sulfur Protein Docking to the Quinol Oxidation Site of Complex III.
J.Biol.Chem.
|