Mutant AOX2 promoter, vector carrying same, transformant, and production
of heterlogous protein
    7.
    发明授权
    Mutant AOX2 promoter, vector carrying same, transformant, and production of heterlogous protein 失效
    突变AOX2启动子,携带相同的载体,转化子和杂交蛋白的产生

    公开(公告)号:US5683893A

    公开(公告)日:1997-11-04

    申请号:US471206

    申请日:1995-06-06

    CPC分类号: C12N15/815 C07K14/765

    摘要: A mutant AOX2 promoter obtained by mutating a sequence of natural AOX2 promoter in a manner comprising at least one of the three mutation modes of (1) a region extending upstream from nucleotide 1187 inclusive and comprising at least nucleotides 845-960 is deleted, (2) nucleotide(s) is(are) replaced in region(s) in nucleotides 1274-1314, and (3) new oligonucleotide(s) is (are) inserted in region(s) in nucleotides 1274-1314, a vector carrying said mutant AOX2 promoter, a transformant into which said vector has been introduced, and a method for producing a heterologous protein, which comprises cultivating said transformant. The promoter of the present invention has remarkably enhanced activity as compared with natural AOX2 promoter, and is highly useful as a promoter to be carried in an expression vector allowing heterologous protein expression. In addition, the vector and the transformant of the invention can efficiently express and produce various useful heterologous proteins.

    摘要翻译: 以包含以下三种突变模式中的至少一种的方式突变天然AOX2启动子的突变体AOX2启动子被缺失:(1)包含第1187位核苷酸并且至少包含核苷酸845-960的上游延伸的区域;(2) )核苷酸在核苷酸1274-1314的区域中被替换,并且(3)将新的寡核苷酸插入到核苷酸1274-1314的区域中,载体携带所述 突变体AOX2启动子,其中引入了所述载体的转化体,以及产生异源蛋白质的方法,其包括培养所述转化体。 与天然AOX2启动子相比,本发明的启动子具有显着增强的活性,并且作为允许异源蛋白质表达的表达载体中携带的启动子是非常有用的。 此外,本发明的载体和转化体可以有效地表达和产生各种有用的异源蛋白质。

    Method for producing protein
    9.
    发明授权
    Method for producing protein 失效
    生产蛋白质的方法

    公开(公告)号:US6068995A

    公开(公告)日:2000-05-30

    申请号:US666435

    申请日:1996-09-19

    摘要: A method for producing a desired protein, which comprises growing, by a fed-batch culture, a host cell capable of expressing the desired protein, wherein the specific growth rate of the host cell is changed from the initial rate to a predetermined one by successively changing the rate of addition of a substrate which controls the growth of the host cell. According to the mode of change of the rate of substrate addition to the medium of the present invention, optimal patterns of specific growth rate .mu. and specific production rate .rho. can be realized to optimize the fed-batch culture system. As a consequence of the realization, it is made possible to perform a high density culture of the host cell by fed-batch culture, an the desired protein can be produced efficiently in a short time.

    摘要翻译: PCT No.PCT / JP95 / 02186 Sec。 371日期1996年9月19日 102(e)1996年9月19日PCT 1994年10月25日PCT公布。 公开号WO96 / 12816 PCT 日期:1996年5月2日一种生产所需蛋白质的方法,其包括通过补料分批培养物生长能够表达所需蛋白质的宿主细胞,其中所述宿主细胞的比生长速率从初始速率改变为 通过依次改变控制宿主细胞生长的底物的加入速度来预定的。 根据本发明介质的底物添加速度的变化方式,可以实现比生长速度mu和比生产率rho的最佳模式,以优化补料分批培养体系。 作为实现的结果,可以通过补料分批培养进行宿主细胞的高密度培养,可以在短时间内有效地产生所需的蛋白质。