The Enzyme Database

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Accepted name: (S)-limonene 6-monooxygenase
Reaction: (S)-limonene + [reduced NADPH—hemoprotein reductase] + O2 = (–)-trans-carveol + [oxidized NADPH—hemoprotein reductase] + H2O
For diagram of perillyl alcohol, isopiperitol and carveol biosynthesis, click here
Glossary: limonene = a monoterpenoid
(S)-limonene = (–)-limonene
Other name(s): (–)-limonene 6-hydroxylase; (–)-limonene 6-monooxygenase; (–)-limonene,NADPH:oxygen oxidoreductase (6-hydroxylating)
Systematic name: (S)-limonene,[reduced NADPH—hemoprotein reductase]:oxygen oxidoreductase (6-hydroxylating)
Comments: A cytochrome P-450 (heme thiolate) enzyme. The enzyme participates in the biosynthesis of (–)-carvone, which is responsible for the aroma of spearmint.
Links to other databases: BRENDA, EAWAG-BBD, EXPASY, Gene, KEGG, MetaCyc, PDB, CAS registry number: 138066-93-0
1.  Karp, F., Mihaliak, C.A., Harris, J.L. and Croteau, R. Monoterpene biosynthesis: specificity of the hydroxylations of (-)-limonene by enzyme preparations from peppermint (Mentha piperita), spearmint (Mentha spicata), and perilla (Perilla frutescens) leaves. Arch. Biochem. Biophys. 276 (1990) 219–226. [DOI] [PMID: 2297225]
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