ID 1.14.19.64 DE (S)-stylopine synthase. AN (S)-cheilanthifoline oxidase (methylenedioxy-bridge-forming). CA (S)-cheilanthifoline + O2 + reduced [NADPH--hemoprotein reductase] = (S)- CA stylopine + H(+) + 2 H2O + oxidized [NADPH--hemoprotein reductase]. CC -!- A cytochrome P450 (heme-thiolate) protein catalyzing an oxidative CC reaction that does not incorporate oxygen into 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 and EC 1.14.21.1. DR Q50LH3, C7192_ESCCA; Q50LH4, C7193_ESCCA; B1NF19, C719D_ARGME; //