Enables the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: CoQH2 + 2 ferricytochrome c = CoQ + 2 ferrocytochrome c + 2 H+.
Synonyms:
narrow_synonym:
complex III (mitochondrial electron transport) activity; cytochrome a; cytochrome a3/copper complex; cytochrome b562; cytochrome b566; cytochrome c1; soluble cytochrome b562
broad_synonym:
cytochrome
related_synonym:
electron transporter, transferring electrons within CoQH2-cytochrome c reductase complex activity; electron transporter, transferring electrons within cytochrome c oxidase complex activity; mitochondrial electron transport complex III; ubiquinol-cytochrome c oxidoreductase activity; ubiquinol-cytochrome c-2 oxidoreductase activity; ubiquinol-cytochrome c1 oxidoreductase activity; ubiquinol-cytochrome c2 reductase activity; ubiquinol:ferricytochrome-c oxidoreductase activity; ubiquinone-cytochrome c oxidoreductase activity; ubiquinone-cytochrome c reductase activity
alt_id:
GO:0045153; GO:0045154
xref:
EC:7.1.1.8; MetaCyc:RXN-15816; RHEA:11484; Reactome:R-HSA-164651 "Electron transfer from ubiquinol to cytochrome c of complex III"