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Zhang Yan,Liang Zhuo,Jiang Mulan,Wan Xia,Gon Yangmin,Zhang Yinbo,Huang Fenghong 한국식품과학회 2013 Food Science and Biotechnology Vol.22 No.2
In modern diet of human being, the ω-6/ω-3ratio of dietary fatty acid was shifted much towards ω-6series. In this work, a fatty acid desaturase (FAD) gene lkfad15 was cloned and identified from oleaginous yeast Lipomyces kononenkoae. Function analysis results shown that LKFAD15 is a novel Δ12/Δ15 bifunctional FAD which could not only produce linoleic acid and α-linolenic acid use just oleic acid as substrate but also adjust the ω-6/ω-3 fatty acids ratio to the WHO recommended ratio. Phylogenetic analysis of LKFAD15 suggested it is a specific intermediate product of gene evolution derives from independent gene duplication events.