In enzymology, a diaminobutyrate acetyltransferase is an enzyme that catalyzes the chemical reaction acetyl-CoA + L-2,4-diaminobutanoate ⇌ {\displaystyle \rightleftharpoons } CoA + N4-acetyl-L-2,4-diaminobutanoateThus, the two substrates of this enzyme are acetyl-CoA and L-2,4-diaminobutanoate, whereas its two products are CoA and N4-acetyl-L-2,4-diaminobutanoate. Wikipedia