Function
Displays alpha (N-terminal) acetyltransferase activity. Catalyzes the covalent attachment of an acetyl moiety from acetyl-CoA to the free alpha-amino group at the N-terminus of a protein (PubMed:17511810, PubMed:23959863, PubMed:25728374). NAT is able to acetylate the alpha-amino group of methionine, alanine and serine N-terminal residue substrates, however it has a preference for Ser-N-terminal substrates (PubMed:17511810, PubMed:23959863, PubMed:25728374).