The Enzyme Database

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Accepted name: aralkylamine N-acetyltransferase
Reaction: acetyl-CoA + a 2-arylethylamine = CoA + an N-acetyl-2-arylethylamine
Other name(s): serotonin acetyltransferase; serotonin acetylase; arylalkylamine N-acetyltransferase; serotonin N-acetyltransferase; AANAT; melatonin rhythm enzyme
Systematic name: acetyl-CoA:2-arylethylamine N-acetyltransferase
Comments: Narrow specificity towards 2-arylethylamines, including serotonin (5-hydroxytryptamine), tryptamine, 5-methoxytryptamine and phenylethylamine. This is the penultimate enzyme in the production of melatonin (5-methoxy-N-acetyltryptamine) and controls its synthesis (cf. EC, acetylserotonin O-methyltransferase). Differs from EC arylamine N-acetyltransferase.
Links to other databases: BRENDA, EXPASY, Gene, KEGG, MetaCyc, PDB, CAS registry number: 92941-56-5
1.  Voisin, P., Namboodiri, M.A.A. and Klein, D.C. Arylamine N-acetyltransferase and arylalkylamine N-acetyltransferase in the mammalian pineal gland. J. Biol. Chem. 259 (1984) 10913–10918. [PMID: 6469990]
2.  Ferry, G., Loynel, A., Kucharczyk, N., Bertin, S., Rodriguez, M., Delagrange, P., Galizzi, J.P., Jacoby, E., Volland, J.P., Lesieur, D., Renard, P., Canet, E., Fauchere, J.L. and Boutin, J.A. Substrate specificity and inhibition studies of human serotonin N-acetyltransferase. J. Biol. Chem. 275 (2000) 8794–8805. [DOI] [PMID: 10722724]
3.  Khalil, E.M. and Cole, P.A. A potent inhibitor of the melatonin rhythm enzyme. J. Am. Chem. Soc. 120 (1998) 6195–6196.
[EC created 1986, modified 2005]

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