The Enzyme Database

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Accepted name: (S)-scoulerine 9-O-methyltransferase
Reaction: S-adenosyl-L-methionine + (S)-scoulerine = S-adenosyl-L-homocysteine + (S)-tetrahydrocolumbamine
For diagram of columbamine, palmatine and corydaline biosynthesis, click here
Systematic name: S-adenosyl-L-methionine:(S)-scoulerine 9-O-methyltransferase
Comments: The product of this reaction is a precursor for protoberberine alkaloids in plants
Links to other databases: BRENDA, EXPASY, Gene, KEGG, MetaCyc, PDB, CAS registry number: 96380-65-3
1.  Muemmler, S., Rueffer, M., Nagakura, N., Zenk, M.H. S-Adenosyl-L-methionine:(S)-scoulerine 9-O-methyltransferase, a highly stereo- and regiospecific enzyme in tetrahydroberberine biosynthesis. Plant Cell Reports 4 (1985) 36–39. [PMID: 24253642]
[EC created 1999]

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