CATH Classification
| Level | CATH Code | Description |
|---|---|---|
|
2 | Mainly Beta |
|
2.10 | Ribbon |
|
2.10.210 | Cytochrome Bc1 Complex; Chain I |
|
2.10.210.10 | Cytochrome Bc1 Complex; Chain I |
Domain Context
CATH Clusters
| Superfamily | Cytochrome Bc1 Complex; Chain I |
| Functional Family |
Enzyme Information
| 7.1.1.8 |
Quinol--cytochrome-c reductase.
based on mapping to UniProt P13272
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)
| P23004 |
QCR2_BOVIN
Bos taurus
Cytochrome b-c1 complex subunit 2, mitochondrial
|
PDB Structure
| PDB | 1PPJ |
| External Links | |
| Method | X-RAY DIFFRACTION |
| Organism | |
| Primary Citation |
Binding of the Respiratory Chain Inhibitor Antimycin to the Mitochondrial bc(1) Complex: A New Crystal Structure Reveals an Altered Intramolecular Hydrogen-bonding Pattern.
J.Mol.Biol.
|