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    • 5. 发明授权
    • Manipulation of SNF1 kinase for altered oil content in oleaginous organisms
    • 操纵SNF1激酶以改善含油生物体内油含量
    • US08435758B2
    • 2013-05-07
    • US12549439
    • 2009-08-28
    • Seung-Pyo HongQuinn Qun ZhuJohn E. Seip
    • Seung-Pyo HongQuinn Qun ZhuJohn E. Seip
    • C12P1/00C07H21/04C12N1/15
    • C12P7/6472C12P7/6427C12P7/6463
    • Methods of increasing the total lipid content in a eukaryotic cell, the total content of polyunsaturated fatty acids [“PUFAs”], and/or the ratio of desaturated fatty acids to saturated fatty acids by reducing the activity of the heterotrimeric SNF1 protein kinase are disclosed. Preferably, the chromosomal genes encoding the Snf1 α-subunit, Gal83 β-subunit or Snf4 γ-subunit of the SNF1 protein kinase, the upstream regulatory genes encoding Sak1, Hxk2, Glk1 or Reg1, or the downstream genes encoding Rme1, Cbr1 or Snf3 are manipulated in a PUFA-producing strain of the oleaginous yeast Yarrowia lipolytica, resulting in increased total lipid content, as compared to the parent strain comprising the heterotrimeric SNF1 protein kinase not having reduced activity.
    • 公开了通过降低异源三聚SNF1蛋白激酶的活性来增加真核细胞中总脂质含量,多不饱和脂肪酸的总含量[“PUFA”]和/或去饱和脂肪酸与饱和脂肪酸的比例的方法 。 优选地,编码SNF1蛋白激酶的Snf1α-亚基,Gal83β-亚基或Snf4γ-亚基的染色体基因,编码Sak1,Hxk2,Glk1或Reg1的上游调控基因或编码Rme1,Cbr1或Snf3的下游基因 与含有不具有降低的活性的异源三聚SNF1蛋白激酶的亲本菌株相比,在含油酵母解脂耶氏酵母解脂耶氏酵母解脂耶氏酵母的PUFA生产菌株中操作,导致总脂质含量增加。
    • 8. 发明授权
    • Promoters and gene expression method by using the promoters
    • 启动子和使用启动子的基因表达方法
    • US07501262B2
    • 2009-03-10
    • US11599475
    • 2006-11-15
    • Moon-Hee SungSeung-Goo LeeSeung-Pyo HongHwa-Jung Seo
    • Moon-Hee SungSeung-Goo LeeSeung-Pyo HongHwa-Jung Seo
    • C12P21/00C12N1/21C12N15/70C12N15/74C07H21/04
    • C07K14/32C12N15/70C12N15/75
    • To provide a promoter, a recombinant DNA, a gene expression vector, an expression vector, and a transformant, which are capable of expressing a gene without inducing gene expression with an inducer; and a method for producing a protein and a kit therefor, which can be operated easily and performed inexpensively by convenient and inexpensive steps. An isolated DNA having the nucleotide sequence of SEQ ID NO: 1 or 2 of Sequence Listing or a fragment thereof, wherein the isolated DNA exhibits a constitutive promoter activity in Escherichia coli or a bacterium belonging to the genus Bacillus; an isolated DNA having a nucleotide sequence of a nucleic acid capable of hybridizing to the above DNA, wherein the isolated DNA exhibits a constitutive promoter activity in Escherichia coli or a bacterium belonging to the genus Bacillus; a recombinant DNA comprising the above DNA and a foreign gene, wherein the foreign gene is operably located; a gene expression vector, at least comprising the above DNA; an expression vector comprising the recombinant DNA; a transformant having the above recombinant DNA, or the above expression vector; a method for producing a protein, characterized by culturing the above transformant, and collecting a protein from the resulting culture; and a kit for producing a protein, at least comprising the above DNA, or the above gene expression vector.
    • 提供能够表达基因而不诱导基因表达的启动子,重组DNA,基因表达载体,表达载体和转化体; 以及用于制备蛋白质及其试剂盒的方法,其可以容易地操作并且通过方便和便宜的步骤廉价地进行。 具有序列表的SEQ ID NO:1或2的核苷酸序列或其片段的分离的DNA,其中所述分离的DNA在大肠杆菌或属于芽孢杆菌属的细菌中显示组成型启动子活性; 具有能够与上述DNA杂交的核酸的核苷酸序列的分离的DNA,其中所述分离的DNA在大肠杆菌或属于芽孢杆菌属的细菌中显示出组成型启动子活性; 包含上述DNA和外来基因的重组DNA,其中所述外源基因可操作地定位; 至少包含上述DNA的基因表达载体; 包含重组DNA的表达载体; 具有上述重组DNA的转化体或上述表达载体; 一种生产蛋白质的方法,其特征在于培养上述转化体,并从得到的培养物中收集蛋白质; 以及用于生产至少包含上述DNA或上述基因表达载体的蛋白质的试剂盒。