ID 2.1.1.4 DE Acetylserotonin O-methyltransferase. AN Hydroxyindole O-methyltransferase. CA S-adenosyl-L-methionine + N-acetylserotonin = S-adenosyl-L-homocysteine + CA N-acetyl-5-methoxytryptamine. CC -!- Some other hydroxyindoles also act as acceptor, more slowly. DR P10950, ASMT_BOVIN ; Q92056, ASMT_CHICK ; P46597, ASMT_HUMAN ; DR Q8HZJ0, ASMT_MACMU ; D3KU66, ASMT_MOUSE ; D3KU67, ASMT_MUSMM ; DR B3GSH5, ASMT_RAT ; //