Reaction catalyzed by theobromine synthase (2.1.1.159), caffeine synthase (2.1.1.160) show all sequences for 2.1.1.160
+
=
+
S-adenosyl-L-methionine
+
1-methylxanthine
=
S-adenosyl-L-homocysteine
+
1,3-dimethylxanthine