EC 2.1.1.119     
Accepted name: 10-hydroxydihydrosanguinarine 10-O-methyltransferase
Reaction: S-adenosyl-L-methionine + 10-hydroxydihydrosanguinarine = S-adenosyl-L-homocysteine + dihydrochelirubine
Systematic name: S-adenosyl-L-methionine:10-hydroxydihydrosanguinarine 10-O-methyltransferase
Comments: This reaction is part of the pathway for synthesis of benzophenanthridine alkaloids in plants.
References:
1.  De-Eknamkul, W., Tanahashi, T. and Zenk, M.H. Enzymic 10-hydroxylation and 10-O-methylation of dihydrosanguinarine in dihydrochelirubine formation by Eschscholtzia. Phytochemistry 31 (1992) 2713–2717.
[EC 2.1.1.119 created 1999]