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Accepted name: 12-hydroxydihydrochelirubine 12-
S-adenosyl- L-methionine + 12-hydroxydihydrochelirubine = S-adenosyl- L-homocysteine + dihydromacarpine
For diagram of chelirubine, macarpine and sanguinarine biosynthesis,
S-adenosyl- L-methionine:12-hydroxydihydrochelirubine 12- O-methyltransferase
Comments: This reaction is part of the pathway for synthesis of benzophenanthridine alkaloid macarpine in plants.
Links to other databases:
BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number: 158736-40-4
Kammerer, L., De-Eknamkul, W. and Zenk, M.H. Enzymic 12-hydroxylation and 12-
O-methylation of dihydrochelirubine in dihydromacarpine formation by Thalictrum bulgaricum. Phytochemistry 36 (1994) 1409–1416.
[EC 188.8.131.52 created 1999]
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