InterPro domain: IPR030689
General Information
- Identifier IPR030689
- Description Cytochrome b
- Number of genes 36
- Gene duplication stats Loading...
- Associated GO terms GO:0008121 GO:0009055 GO:0045275
Abstract
Cytochrome b is a component of the ubiquinol-cytochrome c reductase complex (complex III or cytochrome b-c1 complex) in the mitochondrion of eukaryotes and in aerobic prokaryotes [ 1 ]. This complex is involved in electron transport that generates an electrochemical potential coupled to ATP synthesis. Cytochrome b is the central redox catalytic subunit of the complex. It is involved in the binding of the quinone substrate and is responsible for the transmembrane electron transfer by which redox energy is converted into a protonmotive force [ 2 ].
1. Potential induced redox reactions in mitochondrial and bacterial cytochrome b-c1 complexes. J. Biol. Chem. 271, 12356-63
2. Mitochondrial cytochrome b: evolution and structure of the protein. Biochim. Biophys. Acta 1143, 243-71