TIGHT CONTROL OF GENE EXPRESSION IN EUCARYOTIC CELLS BY TETRACYCLINE-RESPONSIVE PROMOTERS
    2.
    发明申请
    TIGHT CONTROL OF GENE EXPRESSION IN EUCARYOTIC CELLS BY TETRACYCLINE-RESPONSIVE PROMOTERS 审中-公开
    通过四环素反应促进剂对真核细胞中基因表达的严格控制

    公开(公告)号:WO9429442A3

    公开(公告)日:1995-02-02

    申请号:PCT/US9406734

    申请日:1994-06-14

    Abstract: Transgenic animals carrying two transgenes, the first coding for a transactivator fusion protein comprising a tet repressor and a polypeptide which directly or indirectly activates in eucaryotic cells, and the second comprising a gene operably linked to a minimal promotor operably linked to at least one tet operator sequence, are disclosed. Isolated DNA molecules (e.g., targeting vectors) for integrating a polynucleotide sequence encoding a transactivator of the invention at a predetermined location within a second target DNA molecule by homologous recombination are also disclosed. Transgenic animals having the DNA molecules of the invention integrated at a predetermined location in a chromosome by homologous recombination are also encompassed by the invention. Methods to regulate the expression of a tet operator linked gene of interest by administering tetracycline or a tetracycline analogue to an animal of the invention are also disclosed. The regulatory system of the invention allows for conditional inactivation or modulation of expression of a gene of interest in a host cell or animal.

    Abstract translation: 携带两个转基因的转基因动物,第一编码包含直接或间接在真核细胞中活化的tet阻遏物和多肽的反式激活因子融合蛋白,第二编码包含与可操作地连接至少一个tet操纵子的最小启动子可操作地连接的基因 序列。 还公开了通过同源重组将编码本发明的反式激活物的多核苷酸序列整合到第二靶DNA分子内的预定位置的分离的DNA分子(例如靶向载体)。 通过同源重组将具有整合在染色体中预定位置的本发明的DNA分子的转基因动物也包括在本发明中。 还公开了通过向本发明的动物施用四环素或四环素类似物来调节所关注的tet操纵子连接基因的表达的方法。 本发明的调节系统允许在宿主细胞或动物中有条件地失活或调控感兴趣的基因的表达。

Patent Agency Ranking