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    • 4. 发明申请
    • METHOD FOR CONSTRUCTING RECOMBINANT BACTERIUM FOR PRODUCING NON-NATIVE PROTEIN, AND UTILIZATION OF SAME
    • 用于构建用于生产非蛋白质的重组细菌的方法及其利用
    • US20130095524A1
    • 2013-04-18
    • US13704391
    • 2011-06-16
    • Shigeyuki YokoyamaTakahito MukaiKensaku SakamotoAkiko Matsumoto
    • Shigeyuki YokoyamaTakahito MukaiKensaku SakamotoAkiko Matsumoto
    • C12N15/70
    • C12N15/70C07K14/245C12N9/93C12N15/11C12N15/67C12P21/02Y02P20/52
    • The present invention provides a novel method of producing a recombinant bacterium for production of a non-natural protein, including: (1) expressing tRNA in a bacterium, which tRNA recognizes UAG codon; (2) expressing an aminoacyl-tRNA synthetase in the bacterium, which aminoacyl-tRNA synthetase acylates the tRNA with a non-natural amino acid or an α-hydroxy acid; (3) (i) introducing a DNA construct into the bacterium, which DNA construct is for expressing, in the absence of a release factor for terminating translation at UAG codon, a function of at least one gene selected from the group consisting of genes each of which loses its function when a gene that codes for the release factor is defective and/or introducing an alteration into said at least one gene in a chromosome of the bacterium, which alteration is for expressing the function of said at least one gene in the absence of the release factor; and (4) causing the gene that codes for the release factor in the bacterium to be defective.
    • 本发明提供了一种生产非天然蛋白质的重组细菌的新方法,包括:(1)在tRNA识别UAG密码子的细菌中表达tRNA; (2)在细菌中表达氨酰-tRNA合成酶,该氨基-tRNA合成酶用非天然氨基酸或α-羟基酸酰化tRNA; (3)(i)将DNA构建体引入细菌中,所述DNA构建体用于在不存在用于在UAG密码子下终止翻译的释放因子的情况下表达,所述DNA构建体用于表达至少一种选自下组的基因的功能: 当编码释放因子的基因有缺陷和/或引入细菌染色体中的所述至少一个基因的改变时,其失去功能,所述改变用于在所述细菌的染色体中表达所述至少一种基因的功能 不存在释放因子; 和(4)导致编码细菌释放因子的基因是有缺陷的。
    • 7. 发明申请
    • DNA sequences for the expression of alloproteins
    • 用于表达alloproteins的DNA序列
    • US20090286311A1
    • 2009-11-19
    • US12488136
    • 2009-06-19
    • Shigeyuki YokoyamaMikako ShirouzuAyako SakamotoKensaku Sakamoto
    • Shigeyuki YokoyamaMikako ShirouzuAyako SakamotoKensaku Sakamoto
    • C12N15/63C07H21/04
    • C12N9/93A61K48/00
    • The present invention discloses an expression method for non-naturally-occurring amino acid-containing protein comprising: expressing in animal cells: (A) a mutant tyrosyl-tRNA synthetase that is a mutation of tyrosyl-tRNA synthetase originating in E. coli with an enhanced specificity for a non-naturally-occurring tyrosine derivative as compared with the specificity for tyrosine; (B) suppressor tRNA originating in Bacillus species, Mycoplasma species or Staphylococcus species of eubacteria and capable of binding with the tyrosine derivative in the presence of the mutant tyrosyl tRNA synthetase; and, (C) a desired protein gene that has undergone a nonsense mutation at a desired site; wherein, the tyrosine derivative is incorporated at the location of this nonsense mutation.
    • 本发明公开了一种非天然存在的含氨基酸蛋白质的表达方法,包括:在动物细胞中表达:(A)突变型酪氨酰-tRNA合成酶,其是源自大肠杆菌的酪氨酰-tRNA合成酶的突变,其具有 与酪氨酸的特异性相比,非天然存在的酪氨酸衍生物的特异性增强; (B)源自芽孢杆菌属物种,支原体属或真菌属葡萄球菌属的抑制基因tRNA,能够在突变型酪氨酰tRNA合成酶存在下与酪氨酸衍生物结合; 和(C)在期望的位点已经经历了无义突变的期望的蛋白质基因; 其中,酪氨酸衍生物被掺入该无义突变的位置。