ID 1.14.21.1 DE (S)-stylopine synthase. AN (S)-cheilanthifoline oxidase (methylenedioxy-bridge-forming). CA (S)-cheilanthifoline + NADPH + O(2) = (S)-stylopine + NADP(+) + 2 H(2)O. CF Heme-thiolate. CC -!- Catalyzes an oxidative reaction that does not incorporate oxygen into CC the product. CC -!- Forms the second methylenedioxy bridge of the protoberberine alkaloid CC stylopine from oxidative ring closure of adjacent phenolic and CC methoxy groups of cheilanthifoline. CC -!- Formerly EC 1.1.3.32. //