coenzyme(redirected from Tetrahydrofolic acid)
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An organic substance that reversibly combines with a specific protein, the apoenzyme, and with a substrate to form an active enzyme system.
co′en·zy·mat′ic (-zə-măt′ĭk) adj.
(Biochemistry) biochem a nonprotein organic molecule that forms a complex with certain enzymes and is essential for their activity. See also apoenzyme
a molecule that provides the transfer site for biochemical reactions catalyzed by an enzyme.
co•en`zy•mat′ic (-zaɪˈmæt ɪk, -zɪ-) adj.
A nonprotein compound that activates an enzyme to speed up a biochemical reaction.
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|Noun||1.||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
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
n. coenzima, sustancia que activa la acción de una enzima.