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coenzyme A
noun
, Biochemistry.
- a coenzyme, composed of a phosphorylated derivative of pantothenic acid linked to adenylic acid, that participates in the transfer of acyl groups in fatty acid metabolism and amino acid metabolism. : CoA
coenzyme A
noun
- a constituent of biological cells that functions as the agent of acylation in metabolic reactions CoA
coenzyme A
- A coenzyme that consists of a nucleotide linked to pantothenic acid (part of the vitamin B complex), is present in all living cells, and functions as an acyl group carrier. Coenzyme A is necessary for fatty acid synthesis and oxidation, pyruvate oxidation, and other acetylation reactions. In cellular respiration , each of two acetyl groups derived from the original glucose molecule attaches itself to coenzyme A as acetyl coenzyme A and then enters the Krebs cycle.
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Word History and Origins
Origin of coenzyme A1
First recorded in 1935–40
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