In enzymology, a phenylalanine N-acetyltransferase () is an enzyme that catalyzes the chemical reaction acetyl-CoA + L-phenylalanine CoA + N-acetyl-L-phenylalanine Thus, the two substrates of this enzyme are acetyl-CoA and L-phenylalanine, whereas its two products are CoA and N-acetyl-L-phenylalanine. This enzyme belongs to the family of transferases, specifically those acyltransferases transferring groups other than aminoacyl groups. The systematic name of this enzyme class is acetyl-CoA:L-phenylalanine N-acetyltransferase. This enzyme is also called acetyl-CoA-L-phenylalanine alpha-N-acetyltransferase. This enzyme participates in phenylalanine metabolism. References EC 2.3.1 Enzymes of unknown structure