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coenzyme
(redirected from Coenzymes)

   Also found in: Medical, Encyclopedia, Wikipedia, Hutchinson 0.03 sec.
co·en·zyme  (k-nzm)
n.
A nonproteinaceous organic substance that usually contains a vitamin or mineral and combines with a specific protein, the apoenzyme, to form an active enzyme system.

coen·zy·matic (-z-mtk) adj.
co·enzy·mati·cal·ly adv.

coenzyme  (k-nzm)
A nonprotein organic substance that usually contains a vitamin or mineral and combines with a specific protein, called an apoenzyme, to form an active enzyme system.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.coenzyme - a small molecule (not a protein but sometimes a vitamin) essential for the activity of some enzymes
molecule - (physics and chemistry) the simplest structural unit of an element or compound
cocarboxylase, thiamine pyrophosphate - a coenzyme important in respiration in the Krebs cycle
coenzyme A - a coenzyme present in all living cells; essential to metabolism of carbohydrates and fats and some amino acids
NAD, nicotinamide adenine dinucleotide - a coenzyme present in most living cells and derived from the B vitamin nicotinic acid; serves as a reductant in various metabolic processes
NADP, nicotinamide adenine dinucleotide phosphate - a coenzyme similar to NAD and present in most living cells but serves as a reductant in different metabolic processes
triphosphopyridine nucleotide - a coenzyme of several enzymes
coenzyme Q, ubiquinone - any of several quinones found in living cells and that function as coenzymes that transfer electrons from one molecule to another in cell respiration


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? Mentioned in ? References in periodicals archive
 
For instance, if coenzymes appeared before life, "they may have helped make certain chemical pathways more efficient.
Both vitamins are coenzymes of gammaglutamyl carboxylase and are thus able to regulate mineralization of bone and calcification of blood vessels.
 
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