Method of controlling site-specific recombination
    61.
    发明授权
    Method of controlling site-specific recombination 失效
    控制位点特异性重组的方法

    公开(公告)号:US07238854B2

    公开(公告)日:2007-07-03

    申请号:US10353454

    申请日:2003-01-29

    CPC分类号: C12N15/8217 C12N15/8213

    摘要: The present invention provides methods for the conditional or regulated expression of a site-specific recombinase using split intein-mediated protein splicing. This enhances the temporal and tissue-specificity of trait gene expression and allows for fine tuning of expression specificity.

    摘要翻译: 本发明提供了使用分裂的内含肽介导的蛋白质剪接条件或调节表达位点特异性重组酶的方法。 这增强了性状基因表达的时间和组织特异性,并允许微调表达特异性。

    Acyltransferases for alteration of polyunsaturated fatty acids and oil content in oleaginous yeasts
    68.
    发明授权
    Acyltransferases for alteration of polyunsaturated fatty acids and oil content in oleaginous yeasts 有权
    用于改变多不饱和脂肪酸的酰基转移酶和含油酵母中的油含量

    公开(公告)号:US07901928B2

    公开(公告)日:2011-03-08

    申请号:US12401650

    申请日:2009-03-11

    摘要: Two acyltransferases are provided, suitable for use in the manufacture of microbial oils enriched in omega fatty acids in oleaginous yeast (e.g., Yarrowia lipolytica). Specifically, the genes encoding phophatidylcholine-diacylglycerol acyltransferase (PDAT) and diacylglycerol acyltransferase (DGAT2) have been isolated from Y. lipolytica. These genes encode enzymes that participate in the terminal step in oil biosynthesis in yeast. Each is expected to play a key role in altering the quantity of polyunsaturated fatty acids produced in oils of oleaginous yeasts.

    摘要翻译: 提供两种酰基转移酶,适用于制造含油酵母(例如解脂耶氏酵母)富含ω-脂肪酸的微生物油。 具体地说,从解脂耶氏酵母中分离出编码磷脂酰胆碱 - 二酰基甘油酰基转移酶(PDAT)和二酰基甘油酰基转移酶(DGAT2)的基因。 这些基因编码酵母中参与油生物合成的最终步骤的酶。 预计每一种在改变油质酵母油中产生的多不饱和脂肪酸的量方面起关键作用。

    OPTIMIZED STRAINS OF YARROWIA LIPOLYTICA FOR HIGH EICOSAPENTAENOIC ACID PRODUCTION
    69.
    发明申请
    OPTIMIZED STRAINS OF YARROWIA LIPOLYTICA FOR HIGH EICOSAPENTAENOIC ACID PRODUCTION 有权
    亚硝酸酯高效酸生产优化菌株

    公开(公告)号:US20100317072A1

    公开(公告)日:2010-12-16

    申请号:US12814815

    申请日:2010-06-14

    IPC分类号: C12P7/64 C12N1/15 C11B3/00

    摘要: Described are engineered strains of the oleaginous yeast Yarrowia lipolytica capable of producing an oil comprising greater than 50 weight percent of eicosapentaenoic acid [“EPA”], an ω-3 polyunsaturated fatty acid, measured as a weight percent of total fatty acids [“% TFAs”] and having a ratio of at least 3.1 of EPA % TFAs, to linoleic acid, measured as % TFAs. These strains over-express at least one Δ9 elongase/Δ8 desaturase multizyme, in addition to other heterologous Δ9 elongases, Δ8 desaturases, Δ5 desaturases, Δ17 desaturases, Δ12 desaturases, C16/18 elongases, and optionally over-express diacylglycerol cholinephosphotransferases, malonyl CoA synthetases and/or acyl-CoA lysophospholipid acyltransferases. The expression of at least one peroxisome biogenesis factor protein is down-regulated. Methods for producing EPA within said host cells, oils obtained from the cells, and products therefrom are claimed.

    摘要翻译: 描述了能够产生包含大于50重量%的二十碳五烯酸[“EPA”]的油的油质酵母解脂耶氏酵母解脂耶氏酵母的工程菌株,以总脂肪酸的重量百分比测量的ω-3多不饱和脂肪酸[“% TFAs“],并且具有至少3.1%的EPA%TFA与比率为TFA的亚油酸的比率。 除了其他异源&Dgr .9延伸酶,Dgr。8去饱和酶,Dgr。5去饱和酶,Dgr 17脱饱和酶,Dgr。12去饱和酶,C16外,这些菌株过度表达至少一种Dgr 9延伸酶/ / 18延伸酶和任选的过表达二酰基甘油胆碱磷酸转移酶,丙二酰辅酶A合成酶和/或酰基辅酶A溶血磷脂酰基转移酶。 至少一种过氧化物酶体生物因子蛋白的表达下调。 要求在所述宿主细胞内生产EPA的方法,从细胞获得的油及其产物。