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    • 9. 发明申请
    • NOVEL METHOD FOR THE PRODUCTION OF POLYUNSATURATED FATTY ACIDS
    • 用于生产聚氨酯脂肪酸的新方法
    • WO2004057001A2
    • 2004-07-08
    • PCT/EP2003/014054
    • 2003-12-11
    • UNIVERSITY OF BRISTOLNAPIER, Johnathan, A.SAYANOVA, OlgaLAZARUS, Colin, M.QI, BaoxiuHEINZ, ErnstZANK, ThorstenZÄHRINGER, Ulrich
    • NAPIER, Johnathan, A.SAYANOVA, OlgaLAZARUS, Colin, M.QI, BaoxiuHEINZ, ErnstZANK, ThorstenZÄHRINGER, Ulrich
    • C12N15/82
    • C12N9/0083C12N9/1029C12N15/8247C12P7/6427C12P7/6472
    • The present invention relates to an improved process for the specific production of poly-unsaturated omega-3 and omega-6 fatty acids and a process for the production of triglycerides having an increased content of unsaturated fatty acids, in particular omega-3 and omega-6 fatty acids having at least two double bonds and a 20 or 22 carbon atom chain length. The invention relates to the produc-tion of a transgenic organism, preferably a transgenic plant or a transgenic microorganism, hav-ing an increased content of fatty acids, oils or lipids containing C20- or C22- fatty acids with a delta-5, 7, 8, 10 double bond, respectively due to the expression of a delta-8-desaturase and a delta-9- elon-gase from organisms such as plants preferably Algae like Isochrysis galbana or Euglena gracilis. In addition the invention relates to a process for the production of poly unsaturated fatty acids such as Eicosapentaenoic, Arachidonic, Docosapentaenoic or Docosahexaenoic acid through the co- expression of a delta -8-desaturase, a delta-9-elongase and a delta-5 desaturase in organisms such as microorganisms or plants.The invention additionally relates to the use of specific nucleic acid sequences encoding for the aforementioned proteins with delta-8-desaturase-, delta-9-elongase- or delta-5-desaturase-activity, nucleic acid constructs, vectors and organisms containing said nucleic acid sequences. The invention further relates to unsaturated fatty acids and triglycerides having an increased content of at least 1 % by weight of unsaturated fatty acids and use thereof.
    • 本发明涉及一种用于特异性生产多不饱和ω-3和ω-6脂肪酸的改进方法,以及用于生产具有增加的不饱和脂肪酸含量,特别是ω-3和ω- 具有至少两个双键和20或22个碳原子链长度的6种脂肪酸。 本发明涉及转基因生物体,优选转基因植物或转基因微生物的生产,其具有增加的脂肪酸含量,含有C20-或C22-脂肪酸的脂肪酸,含有δ-5,7 ,8,10双键,分别由于来自诸如植物优选藻类如等鞭毛藻或小球藻的生物体的δ-8-去饱和酶和δ-9-脱氢酶的表达。 此外,本发明涉及通过共同表达δ-8-去饱和酶,δ-9-延伸酶和δ-5的多不饱和脂肪酸如二十碳五烯酸,花生四烯酸,多糖五烯酸或二十二碳六烯酸的生产方法 除微生物或植物等生物体中的去饱和酶。本发明还涉及编码上述蛋白质的具有δ-8-去饱和酶,δ-9-延伸酶或δ-5-去饱和酶活性的特异性核酸序列的使用,核酸 酸构建体,载体和含有所述核酸序列的生物体。 本发明还涉及不饱和脂肪酸和甘油三酸酯,其具有增加的至少1重量%的不饱和脂肪酸的含量及其用途。