Source:http://linkedlifedata.com/resource/umls/id/C1167263
GO: A part of the respiratory chain located in the plasma membrane, containing about 10 polypeptide subunits including four redox centers: cytochrome b/b6, cytochrome c1 and an 2Fe-2S cluster. Catalyzes the oxidation of ubiquinol by oxidized cytochrome c1. Examples of this component are found in Bacterial species. [GOC:mtg_sensu, ISBN:0198547684]