In enzymology, a [acyl-carrier-protein] S-acetyltransferase is an enzyme that catalyzes the reversible chemical reaction acetyl-CoA + [acyl-carrier-protein] ⇌ {\displaystyle \rightleftharpoons } CoA + acetyl-[acyl-carrier-protein]Thus, the two substrates of this enzyme are acetyl-CoA and acyl carrier protein, whereas its two products are CoA and acetyl-acyl-carrier-protein. Wikipedia