Term Name:	caffeine synthase activity
Synonyms:	3N-methyltransferase activity, dimethylxanthine methyltransferase activity, paraxanthine:S-adenosyl-L-methionine 3-N-methyltransferase activity, theobromine:S-adenosyl-L-methionine 1-N-methyltransferase activity
Definition:	Catalysis of the reaction: 1,7-dimethylxanthine + S-adenosyl-L-methionine = H+ + caffeine + S-adenosyl-L-homocysteine. Also converts theobromine to caffeine and 7-methylxanthine to theobromine.
Ontology:	GO: Molecular Function [GO:0102741]    QuickGO    AmiGO