1.14.19.65 cytochrome P450 the enzyme is a cytochrome P450 dependent monooxygenase 395597 1.14.19.65 FAD 0.004 mM, together with the optimal concentration of NADPH, 0.2 mM, enhances activity by 50% 395597 1.14.19.65 FMN 0.004 mM, together with the optimal concentration of NADPH, 0.2 mM, enhances activity by 50% 395597