2.1.1.340	2 S-adenosyl-L-methionine + 3-(aminomethyl)indole = 2 S-adenosyl-L-homocysteine + gramine	overall reaction	-	
2.1.1.340	S-adenosyl-L-methionine + (1H-indol-3-yl)-N-methylmethanamine = S-adenosyl-L-homocysteine + gramine	(1b)	-	
2.1.1.340	S-adenosyl-L-methionine + 3-(aminomethyl)indole = S-adenosyl-L-homocysteine + (1H-indol-3-yl)-N-methylmethanamine	(1a)	-