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Updated: Jun 12, 2026

A Customizable Approach for the Enzymatic Production and Purification of Diterpenoid Natural Products
Published on: October 4, 2019
Molecular cloning and characterization of a broad substrate terpenoid oxidoreductase from Artemisia annua
Anna-Margareta Rydén1, Carolien Ruyter-Spira, Ralph Litjens
1Department of Pharmaceutical Biology, GUIDE, University of Groningen, 9713 AV Groningen, The Netherlands.
Abstract:
From Artemisia annua L., a new oxidoreductase (Red 1) was cloned, sequenced and functionally characterized. Through bioinformatics, heterologous protein expression and enzyme substrate conversion assays, the elucidation of the enzymatic capacities of Red1 was achieved. Red1 acts on monoterpenoids, and in particular functions as a menthone:neomenthol oxidoreductase. The kinetic parameter k(cat)/K(m) was determined to be 939-fold more efficient for the reduction of (-)-menthone to (+)-neomenthol than results previously reported for the menthone:neomenthol reductase from Mentha x piperita. Based on its kinetic properties, the possible use of Red1 in biological crop protection is discussed.
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