1.14.14.143 cytochrome P-450 - 745751, 746129 1.14.14.143 cytochrome P450 a cytochrome P450 monooxygenase 684661 1.14.14.143 FAD - 684661 1.14.14.143 FMN - 684661 1.14.14.143 NADPH-hemoprotein reductase A flavoprotein containing both FMN and FAD. This enzyme catalyses the transfer of electrons from NADPH, an obligatory two-electron donor, to microsomal P-450 monooxygenases, EC 1.14.14._ 745751, 746129