(S)-tetrahydropalmatine + S-adenosyl-L-homocysteine + H(+) => (S)-tetrahydrocolumbamine + S-adenosyl-L-methionine
(s)-tetrahydropalmatine + s-adenosyl-l-homocysteine + h(+) => (s)-tetrahydrocolumbamine + s-adenosyl-l-methionine
(S)-tetrahydropalmatine + S-adenosyl-L-homocysteine + H(+) => (S)-tetrahydrocolumbamine + S-adenosyl-L-methionine
(s)-tetrahydropalmatine + s-adenosyl-l-homocysteine + h(+) => (s)-tetrahydrocolumbamine + s-adenosyl-l-methionine