nicotinate + S-adenosyl-L-methionine = N-methylnicotinate + S-adenosyl-L-homocysteine
nicotinate + s-adenosyl-l-methionine = n-methylnicotinate + s-adenosyl-l-homocysteine
nicotinate + S-adenosyl-L-methionine = N-methylnicotinate + S-adenosyl-L-homocysteine
nicotinate + s-adenosyl-l-methionine = n-methylnicotinate + s-adenosyl-l-homocysteine