Reaction: S-adenosyl-L-methionine + 12-hydroxydihydrochelirubine = S-adenosyl-L-homocysteine + dihydromacarpine
For diagram click here.
Systematic name: 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
1. Kammerer, L., De-Eknamkul, W., Zenk, M.H. Enzymic 12-hydroxylation and 12-O-methylation of dihydrochelirubine in dihydromacarpine formation by Thalictrum bulgaricum. Phytochemistry 36 (1994) 1409-1416.