Expression of G protein coupled receptors in yeast
    1.
    发明授权
    Expression of G protein coupled receptors in yeast 失效
    酵母中G蛋白偶联受体的表达

    公开(公告)号:US07413876B2

    公开(公告)日:2008-08-19

    申请号:US10997069

    申请日:2004-11-23

    IPC分类号: C12N1/19 C07K14/705

    摘要: Disclosed is a transformed yeast cell containing a first heterologous DNA sequence which codes for a mammalian G protein-coupled receptor and a second heterologous DNA sequence which codes for a mammalian G protein α subunit (mammalian Gα). The first and second heterologous DNA sequences are capable of expression in the cell, but the cell is incapable of expressing an endogenous G protein α-subunit (yeast Gα). The cells are useful for screening compounds which affect the rate of dissociation of Gα from Gβγ in a cell. Also disclosed is a novel DNA expression vector useful for making cells as described above. The vector contains a first segment comprising at least a fragment of the extreme amino-terminal coding sequence of a yeast G protein-coupled receptor. A second segment is positioned downstream from the first segment (and in correct reading frame therewith), with the second segment comprising a DNA sequence encoding a heterologous G protein-coupled receptor.

    摘要翻译: 公开了含有编码哺乳动物G蛋白偶联受体的第一异源DNA序列和编码哺乳动物G蛋白α亚基(哺乳动物细胞)的第二异源DNA序列的转化酵母细胞。 第一和第二异源DNA序列能够在细胞中表达,但是细胞不能表达内源性G蛋白α亚基(酵母Gαα)。 这些细胞可用于筛选化合物,这些化合物影响来自细胞中的β-氨基酸的解离速率。 还公开了用于如上所述制备细胞的新型DNA表达载体。 载体含有至少包含酵母G蛋白偶联受体的极端氨基末端编码序列的片段的第一片段。 第二片段位于第一片段的下游(并且在其正确的阅读框架中),第二片段包含编码异源G蛋白偶联受体的DNA序列。