Reaction: (S)-scoulerine + NADPH + H+ + O2 = (S)-cheilanthifoline + NADP+ + 2 H2O
For diagram click here.
Other name(s): (S)-scoulerine oxidase (methylenedioxy-bridge-forming)
Systematic name: (S)-scoulerine,NADPH:oxygen oxidoreductase (methylenedioxy-bridge-forming)
Comments: A heme-thiolate enzyme (P-450) catalysing an oxidative reaction that does not incorporate oxygen into the product. Forms the methylenedioxy bridge of the protoberberine alkaloid cheilanthifoline from oxidative ring closure of adjacent phenolic and methoxy groups of scoulerine.
Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number: 138791-27-2
1. Bauer, W. and Zenk, M.H. Two methylenedioxy bridge-forming cytochrome P-450 dependent enzymes are involved in (S)-stylopine biosynthesis. Phytochemistry 30 (1991) 2953-2961.