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Plant Cell Physiol. 2010 Jul;51(7):1219-28. doi: 10.1093/pcp/pcq073. Epub 2010 May 18.

Molecular cloning and characterization of a broad substrate terpenoid oxidoreductase from Artemisia annua.

Author information

1
Department 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.

PMID:
20483909
DOI:
10.1093/pcp/pcq073
[Indexed for MEDLINE]

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