EC explorer

nicotinamide N-methyltransferase

S-adenosyl-L-methionine + nicotinamide = S-adenosyl-L-homocysteine + 1-methylnicotinamide

guanidinoacetate N-methyltransferase

S-adenosyl-L-methionine + guanidinoacetate = S-adenosyl-L-homocysteine + creatine

thetin—homocysteine S-methyltransferase

dimethylsulfonioacetate + L-homocysteine = (methylsulfanyl)acetate + L-methionine

acetylserotonin O-methyltransferase

S-adenosyl-L-methionine + N-acetylserotonin = S-adenosyl-L-homocysteine + melatonin

betaine—homocysteine S-methyltransferase

betaine + L-homocysteine = dimethylglycine + L-methionine

catechol O-methyltransferase

S-adenosyl-L-methionine + a catechol = S-adenosyl-L-homocysteine + a guaiacol

nicotinate N-methyltransferase

S-adenosyl-L-methionine + nicotinate = S-adenosyl-L-homocysteine + N-methylnicotinate

histamine N-methyltransferase

S-adenosyl-L-methionine + histamine = S-adenosyl-L-homocysteine + N^τ-methylhistamine

thiol S-methyltransferase

S-adenosyl-L-methionine + a thiol = S-adenosyl-L-homocysteine + a methyl thioether

homocysteine S-methyltransferase

S-methyl-L-methionine + L-homocysteine = 2 L-methionine