protein-N-terminal amino-acid acetyltransferase activity protein N-terminal-methionine acetyltransferase activity https://github.com/geneontology/go-ontology/issues/27532 2024-07-10T12:16:39Z RHEA:50580 molecular_function Catalysis of the reaction: acetyl-CoA + N-terminal L-methionyl-[protein] = CoA + H+ + N-terminal N(alpha)-acetyl-L-methionyl-[protein]. RHEA:75239 RHEA:50572 RHEA:50492 RHEA:50532 RHEA:50576 RHEA:50480 RHEA:50568 RHEA:50524 EC:2.3.1.256 EC:2.3.1.258 EC:2.3.1.259 RHEA:50528 RHEA:50604 RHEA:50560 sjm peptide-methionine-alpha-N-acetyltransferase activity RHEA:50484 RHEA:50564 RHEA:50520 RHEA:50488 EC:2.3.1.254 GO:0120518