EC 2.1.1.7     
Accepted name: nicotinate N-methyltransferase
Reaction: S-adenosyl-L-methionine + nicotinate = S-adenosyl-L-homocysteine + N-methylnicotinate
Other name(s): furanocoumarin 8-methyltransferase; furanocoumarin 8-O-methyltransferase
Systematic name: S-adenosyl-L-methionine:nicotinate N-methyltransferase
References:
1.  Joshi, J.G. and Handler, P. Biosynthesis of trigonelline. J. Biol. Chem. 235 (1960) 2981–2983. [PMID: 13790768]
[EC 2.1.1.7 created 1965]