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Acetylserotonin O-Methyltransferase MeSH Descriptor Data 2026


MeSH Heading
Acetylserotonin O-Methyltransferase
Tree Number(s)
D08.811.913.555.500.100
Unique ID
D000121
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D000121
Scope Note
An enzyme that catalyzes the transfer of a methyl group from S-adenosylmethionine to N-acetylserotonin to form N-acetyl-5-methoxytryptamine (MELATONIN).
Entry Term(s)
Acetylserotonin Methyltransferase
HIOMT
Hydroxyindole O-Methyltransferase
Oxyindol-O-Methyltransferase
Registry Numbers
EC 2.1.1.4
Related Numbers
9029-77-0
CAS Type 1 Name
S-Adenosyl-L-methionine:N-acetylserotonin O-methyltransferase
Previous Indexing
Methyltransferases (1974)
Serotonin (1974)
Public MeSH Note
2008; see ACETYLSEROTONIN N-METHYLTRANSFERASE 1998-2007, see ACETYLSEROTONIN METHYLTRANSFERASE 1991-1997, see METHYLTRANSFERASES 1975-1990
History Note
2008(1975)
Date Introduced
1991/01/01
Last Updated
2007/07/09
Acetylserotonin O-Methyltransferase Preferred
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