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ubiquinone Syllabification: u·bi·qui·none
Pronunciation: /yo͞oˈbikwəˌnōn/

Definition of ubiquinone in English:


Any of a class of compounds that occur in all living cells and that act as electron-transfer agents in cell respiration. They are substituted quinones.
Example sentences
  • The regulation of this biosynthetic pathway at the mitochondrial level depends on the ubiquinone, the alternative oxidase and a species-specific uncoupling protein.
  • Antioxidant compounds such as vitamins C and E, lipoic acid, ubiquinones, superoxide dismutase, catalase, and glucathione peroxidase can limit oxidative damage.
  • Interactions of organic molecules such as dihydropyridines, ubiquinone, tryptophan, and halothane with lipid bilayers have been studied through molecular dynamics simulations.


1950s: blend of ubiquitous and quinone.

Definition of ubiquinone in:
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