holo-ACP synthase

ho·lo-ACP syn·thase

(hol'ō sin'thās),

An enzyme that catalyzes transfer of the 4'-phosphopantetheinyl residue from coenzyme A to a seryl residue of apo-ACP (acyl-carrier protein) to form holo-ACP, releasing adenosine 3',5'-bisphosphate; a required step if fatty acid biosynthesis is to function.

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