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Definition of «Coenzyme»


Coenzyme: A substance that enhances the action of an enzyme. (An enzyme is a protein that functions as a catalyst to mediate and speed a chemical reaction).

Coenzymes are small molecules. They cannot by themselves catalyze a reaction but they can help enzymes to do so. In technical terms, coenzymes are organic nonprotein molecules that bind with the protein molecule (apoenzyme) to form the active enzyme (holoenzyme).

A number of the water-soluble vitamins such as vitamins B1, B2 and B6 serve as coenzymes.

For More Information «Coenzyme»

  • coenzyme: Definition from Answers.com

    Library > Literature & Language > Dictionary ( kō-ĕn ' zīm ' ) n. A nonproteinaceous organic substance that usually contains a vitamin or mineral and combines with ...

  • Coenzyme Q10: Information from Answers.com

    Key Terms: Antioxidant, Chemotherapy, Lipids, Lymphoma, Mitochondria. Definition Coenzyme Q10 is a fat-soluble nutrient also known as CoQ10, or ubiquinone . It is ...

  • Coenzyme Q10

    Housecall, our weekly general-interest e-newsletter, keeps you up to date on a wide variety of health topics with timely, reliable, practical information, recipes ...

  • coenzyme definition of coenzyme in the Free Online Encyclopedia.

    coenzyme (kō-ĕn`zīm), any one of a group of relatively small organic molecules required for the catalytic function of certain enzymes enzyme, biological catalyst.

  • coenzyme (biochemistry) -- Britannica Online Encyclopedia

    coenzyme (biochemistry), Any of a number of freely diffusing organic compounds that function as cofactor s with enzyme s in promoting a variety of metabolic reactions.

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