N-terminal methionine Nalpha-acetyltransferase NatF EC#: 2.3.1.259; ChemWhat Code: 1377094
| Product Name | N-terminal methionine Nalpha-acetyltransferase NatF |
| Example Structure |  |
| Synonyms | Naa60, Naa60p, Nalpha-acetyltransferase 60, NatF |
| EC Number | 2.3.1.259 |
| CAS Registry Number | |
| Comments | N-terminal-acetylases (NATs) catalyse the covalent attachment of an acetyl moiety from acetyl-CoA to the free ¦Á-amino group at the N-terminus of a protein. This irreversible modification neutralizes the positive charge at the N-terminus, makes the N-terminal residue larger and more hydrophobic, and prevents its removal by hydrolysis. NatF is found only in higher eukaryotes, and is absent from yeast. Unlike other Nat systems the enzyme is located in the Golgi apparatus. It faces the cytosolic side of intracellular membranes, and specifically acetylates transmembrane proteins whose N termini face the cytosol. NatF targets N-terminal L-methionine residues attached to Lys, Ser, Val, Leu, Gln, Ile, Tyr and Thr residues. Formerly EC 2.3.1.88. |
| Cofactor | |
| History | |
| Reactions | Acetyl-CoA + an N-terminal-L-methionyl-[transmembrane protein] = an N-terminal-N(alpha)-acetyl-L-methionyl-[transmembrane protein] + CoA. |
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