has role has functional parent independent continuant 1,4-benzoquinones ubiquinones mitoquinones Ubiquinones Koenzym Q Ubiquinone coenzymes Q Q CHEBI:27186 mitochondrial ubiquinone mitochondrial ubiquinones Coenzyme Q CHEBI:15279 CoQ Ubichinon coenzyme Q Any benzoquinone derived from 2,3-dimethoxy-5-methylbenzoquinone; one of a group of naturally occurring homologues. The redox-active quinoid moiety usually carries a polyprenoid side chain at position 6, the number of isoprenoid units in which is species-specific. Ubiquinones are involved in the control of mitochondrial electron transport, and are also potent anti-oxidants. CHEBI:9852 a ubiquinone Coenzym Q prenylquinone 2,3-dihydroxy-5-methyl-1,4-benzoquinone mouse metabolite Escherichia coli metabolite