3'-hydroxy-N-methyl-(S)-coclaurine 4'-O-methyltransferase

In enzymology, a 3'-hydroxy-N-methyl-(S)-coclaurine 4'-O-methyltransferase (EC 2.1.1.116) is an enzyme that catalyzes the chemical reaction

S-adenosyl-L-methionine + 3'-hydroxy-N-methyl-(S)-coclaurine ${\displaystyle \rightleftharpoons }$ S-adenosyl-L-homocysteine + (S)-reticuline

Thus, the two substrates of this enzyme are S-adenosyl methionine and , whereas its two products are S-adenosylhomocysteine and (S)-reticuline.

This enzyme belongs to the family of transferases, specifically those transferring one-carbon group methyltransferases. The systematic name of this enzyme class is S-adenosyl-L-methionine:3'-hydroxy-N-methyl-(S)-coclaurine 4'-O-methyltransferase. This enzyme participates in .

References[]

• Frenzel T, Zenk MH (1990). "S-Adenosyl-L-methionine: 3'-hydroxy-N-methyl-(S)-coclaurine 4'-O-methyltransferase, a regio- and stereoselective enzyme of the (S)-reticuline pathway". Phytochemistry. 29 (11): 3505–3511. doi:10.1016/0031-9422(90)85265-H.