(S)-tetrahydroprotoberberine N-methyltransferase activity
(s)-tetrahydroprotoberberine n-methyltransferase activity
S-adenosyl-L-methionine:(S)-7,8,13,14-tetrahydroprotoberberine cis-N-methyltransferase activity
s-adenosyl-l-methionine:(s)-7,8,13,14-tetrahydroprotoberberine cis-n-methyltransferase activity