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In enzymology, a monoprenyl isoflavone epoxidase (EC 1.14.99.34) is an enzyme that catalyzes the chemical reaction

7-O-methylluteone + NADPH + H + O₂ ${\displaystyle \rightleftharpoons }$ dihydrofurano derivatives + NADP + H₂O

The 4 substrates of this enzyme are 7-O-methylluteone, NADPH, H, and O₂, whereas its 3 products are dihydrofurano pyranoisoflavone derivative, NADP, and H₂O.

This enzyme belongs to the family of oxidoreductases, specifically those acting on paired donors, with O2 as oxidant and incorporation or reduction of oxygen. The oxygen incorporated need not be derive from O miscellaneous. The systematic name of this enzyme class is 7-O-methylluteone,NADPH:O2 oxidoreductase. Other names in common use include monoprenyl isoflavone monooxygenase, and 7-O-methylluteone:O2 oxidoreductase.

References

• Tanaka M, Tahara S (1997). "FAD-dependent epoxidase as a key enzyme in fungal metabolism of prenylated flavonoids". Phytochemistry. 46 (3): 433–439. doi:10.1016/S0031-9422(97)00322-1.

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