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 | Ubiquinol-cytochrome c reductase iron-sulfur subunit |
Enzyme Information
| 1.10.2.2 |
Quinol--cytochrome-c reductase.
based on mapping to UniProt P0CY48
Quinol + 2 ferricytochrome c = quinone + 2 ferrocytochrome c + 2 H(+).
-!- 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).
|
UniProtKB Entries (1)
| P0CY48 |
UCRI_RHOCA
Rhodobacter capsulatus
Ubiquinol-cytochrome c reductase iron-sulfur subunit
|
PDB Structure
| PDB | 1ZRT |
| External Links | |
| Method | X-RAY DIFFRACTION |
| Organism | Rhodobacter |
| Primary Citation |
X-Ray Structure of Rhodobacter Capsulatus Cytochrome bc (1): Comparison with its Mitochondrial and Chloroplast Counterparts.
Photosynth.Res.
|