Information on EC - quinol-cytochrome-c reductase

for references in articles please use BRENDA:EC7.1.1.8
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IUBMB Comments
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 c1, 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, NADH dehydrogenase).
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The expected taxonomic range for this enzyme is: Bacteria, Eukaryota, Archaea
ActE, b6/f complex, bc1, bc1 complex, coenzyme Q-cytochrome c reductase, coenzyme QH2-cytochrome c reductase, coenzymeQ–cytochrome c oxidoreductase, complex III, coQH2-cytochrome c oxidoreductase, cyt bc1, more
quinol + 2 ferricytochrome c = quinone + 2 ferrocytochrome c + 2 H+[side 2]
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