ID 1.14.99.34 DE monoprenyl isoflavone epoxidase. AN monoprenyl isoflavone monooxygenase. CA 7-O-methylluteone + NADPH + H(+) + O2 = dihydrofurano derivatives + CA NADP(+) + H2O. CC -!- The enzyme has a high specificity for monoprenyl isoflavone. CC -!- The product of the prenyl epoxidation reaction contains an oxygen CC atom derived from O2, but not from H2O. CC -!- It is slowly and nonenzymically converted into the corresponding CC dihydrofurano derivative. //