FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term respiratory chain complex III ID (Ontology) GO:0045275 (Gene Ontology)
Definition A protein complex that transfers electrons from ubiquinol to cytochrome c and translocates two protons across a membrane. The complex contains a core structure of three catalytic subunits: cytochrome b, the Rieske iron sulfur protein (ISP), and cytochrome c1, which are arranged in an integral membrane-bound dimeric complex; additional subunits are present, and vary among different species.[ PubMed:16228398 PubMed:16352458 PubMed:17200733 ]
Also Known As"complex III" ; "cytochrome bc(1) complex" ; "cytochrome bc1 complex" (for all, see Synonyms field below)
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Genes (FBgn)GO_CELLULAR_COMPONENT
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 respiratory chain complex III (all annotations which use CV term, excluding "NOT" statements)
     part_of | respiratory chain complex III       --
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protein-containing complex
 |__respiratory chain complex__________
membrane protein complex               |
 |__transmembrane transporter complex__|
catalytic complex                      |
 |__cytochrome complex_________________|
 |__oxidoreductase complex_____________|
transporter complex                    |
 |__transmembrane transporter complex__|
                                       respiratory chain complex III  18 rec.
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Is a cytochrome complex
respiratory chain complex
transmembrane transporter complex
oxidoreductase complex
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Synonyms
  • "coenzyme Q-cytochrome c oxidoreductase complex" RELATED
    "coenzyme Q-cytochrome c reductase complex" RELATED
    "complex III" EXACT
    "CoQH2-cytochrome c reductase complex" RELATED
    "cytochrome bc(1) complex" EXACT
    "cytochrome bc1 complex" EXACT
    "electron transport complex III" RELATED
    "ubiquinol-cytochrome c oxidoreductase complex" EXACT
    "ubiquinol-cytochrome-c reductase complex" EXACT
Secondary IDs
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Wikipedia:Coenzyme_Q_-_cytochrome_c_reductase