(S)-limonene 7-monooxygenase () is an enzyme that catalyzes the chemical reaction
The four substrates of this enzyme are (−)-(S)-limonene, reduced nicotinamide adenine dinucleotide phosphate (NADPH), oxygen, and a proton. Its products are (−)-perillyl alcohol, oxidised NADP, and water.
This enzyme is a cytochrome P450 protein containing heme. This oxidoreductase, which uses molecular oxygen as oxidant is in a group with systematic name (S)-limonene,NADPH:oxygen oxidoreductase (7-hydroxylating). Other names in common use include (−)-limonene 7-monooxygenase, (−)-limonene hydroxylase, (−)-limonene monooxygenase, and (−)-limonene,NADPH:oxygen oxidoreductase (7-hydroxylating). In Perilla frutescens it is part of the biosynthetic pathway to perillaldehyde.
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