Cloning and functional characterization of a fatty acid Δ6-desaturase from Oenothera biennis: Production of γ-linolenic acid by heterologous expression in Saccharomyces cerevisiae

Cloning and functional characterization of a fatty acid Δ6-desaturase from Oenothera biennis:... Evening primrose Oenothera biennis is grown commercially for γ-linolenic acid (GLA) production by the fatty acid Δ6-desaturase enzymatic reaction. Based on available sequence information, the O. biennis fatty acid Δ6-desaturase gene was cloned, using rapid amplification of cDNA ends methods and reverse transcription-polymerase chain reaction. The deduced amino acid sequence showed high similarity to the plant Δ6-desaturases, which comprised the characteristics of membrane-bound desaturases, including three conserved histidine-rich motifs, hydropathy profile, and a cytochrome b5 domain at the N-terminus. Heterologous expression of the coding sequence in Saccharomyces cerevisiae resulted in the synthesis and accumulation of GLA when provided with linoleic acid substrate. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Plant Physiology Springer Journals

Cloning and functional characterization of a fatty acid Δ6-desaturase from Oenothera biennis: Production of γ-linolenic acid by heterologous expression in Saccharomyces cerevisiae

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Publisher
Springer Journals
Copyright
Copyright © 2010 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Plant Sciences ; Plant Physiology
ISSN
1021-4437
eISSN
1608-3407
D.O.I.
10.1134/S1021443710040163
Publisher site
See Article on Publisher Site

Abstract

Evening primrose Oenothera biennis is grown commercially for γ-linolenic acid (GLA) production by the fatty acid Δ6-desaturase enzymatic reaction. Based on available sequence information, the O. biennis fatty acid Δ6-desaturase gene was cloned, using rapid amplification of cDNA ends methods and reverse transcription-polymerase chain reaction. The deduced amino acid sequence showed high similarity to the plant Δ6-desaturases, which comprised the characteristics of membrane-bound desaturases, including three conserved histidine-rich motifs, hydropathy profile, and a cytochrome b5 domain at the N-terminus. Heterologous expression of the coding sequence in Saccharomyces cerevisiae resulted in the synthesis and accumulation of GLA when provided with linoleic acid substrate.

Journal

Russian Journal of Plant PhysiologySpringer Journals

Published: Jul 7, 2010

References

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