Definition of Coenzyme

1. Noun. A small molecule (not a protein but sometimes a vitamin) essential for the activity of some enzymes.

Definition of Coenzyme

1. Noun. (biochemistry) Any small molecule that is necessary for the functioning of an enzyme. ¹

¹ Source:

Definition of Coenzyme

1. a substance necessary for the functioning of certain enzymes [n -S]

Medical Definition of Coenzyme

1. An organic nonprotein molecule, frequently a phosphorylated derivative of a water soluble vitamin, that binds with the protein molecule (apoenzyme) to form the active enzyme (holoenzyme). This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)

Lexicographical Neighbors of Coenzyme

coenzyme (current term)
coenzyme A
coenzyme B12
coenzyme F
coenzyme F(420) reducing hydrogenase
coenzyme F420-dependent alcohol dehydrogenase
coenzyme I
coenzyme II
coenzyme M
coenzyme M-7-merceptoheptanoylthreonine-phosphate-heterodisulfide hydrogenase
coenzyme Q
coenzyme R
coenzyme a-transferases
coenzyme a ligases
coenzyme factor

Literary usage of Coenzyme

Below you will find example usage of this term as found in modern and/or classical literature:

1. A Dictionary of Applied Chemistry by Thomas Edward Thorpe (1912)
"1908, 8, 620) have, however, found that in juice from bottom yeast the coenzyme disappears first, and that the fermentation can be restarted by the addition ..."

2. The Chemistry of Plant Life by Roscoe Wilfred Thatcher (1921)
"The best known example of a coenzyme in plant tissues is in connection with the ... An examination of this filtrate, which contains the coenzyme for zymase, ..."

3. International Medical and Surgical Surveyby American Institute of Medicine by American Institute of Medicine (1922)
"Finally, juices and extracts possessing strong vitamin B action do not activate washed dried yeast without coenzyme, but in the latter's presence ..."

4. Journal of the American Chemical Society by American Chemical Society (1879)
"... University of British Columbia Vancouver 8, British Columbia, Canada Received May 25, 1968 Inhibition of coenzyme Q Systems by Chloroquine and Other ..."

5. Nutrient Composition of Rations for Short-term, High-intensity Combat Operations by Institute of Medicine (U. S.), Fnb, High-stress Situations, Committee on Military Nutrition Research, National Academy of Sciences (2006)
"Dietary supplementation with coenzyme Q|0 results in increased levels of ... The effect of oral coenzyme Q10 on the exercise tolerance of middle-aged, ..."

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