coenzyme A


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coenzyme A

n. Abbr. CoA
A coenzyme present in all living cells that transfers acetyl or acyl groups in metabolic reactions and that regulates gene expression through acetylation of histones.

coenzyme A

n
(Biochemistry) a constituent of biological cells that functions as the agent of acylation in metabolic reactions. Abbreviation: CoA
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Noun1.coenzyme A - a coenzyme present in all living cells; essential to metabolism of carbohydrates and fats and some amino acids
coenzyme - a small molecule (not a protein but sometimes a vitamin) essential for the activity of some enzymes