A NOVEL VECTOR AND EXPRESSION CELL LINE FOR MASS PRODUCTION OF RECOMBINANT PROTEIN AND A PROCESS OF PRODUCING RECOMBINANT PROTEIN USING SAME
    46.
    发明申请
    A NOVEL VECTOR AND EXPRESSION CELL LINE FOR MASS PRODUCTION OF RECOMBINANT PROTEIN AND A PROCESS OF PRODUCING RECOMBINANT PROTEIN USING SAME 有权
    用于生产重组蛋白质的新型载体和表达细胞系以及使用其生产重组蛋白的方法

    公开(公告)号:US20100120089A1

    公开(公告)日:2010-05-13

    申请号:US12444567

    申请日:2007-10-16

    CPC classification number: C12N9/003 C12N15/85 C12N2510/00

    Abstract: Disclosed herein is an inducible high-expression cassette comprising a dihydrofolate reductase (DHFR) promoter from which GC-rich repeat sequences are partially or entirely removed, the cassette capable of more effectively improving a gene amplification system. Also disclosed are an expression vector comprising the inducible expression cassette and optionally a gene encoding a recombinant protein of interest, an animal cell line transformed with the expression vector, and a method of mass producing and purifying a recombinant protein by culturing the transformant. The present invention enables the shortening of the time required to establish a cell line producing a recombinant protein of interest at high levels using a low concentration of a DHFR inhibitor, thereby allowing more effective production of the recombinant protein.

    Abstract translation: 本文公开了包含二氢叶酸还原酶(DHFR)启动子的诱导型高表达盒,从其中部分或全部除去富含GC的重复序列,所述盒能够更有效地改善基因扩增系统。 还公开了包含可诱导表达盒和任选的编码目标重组蛋白的基因,用表达载体转化的动物细胞系的表达载体,以及通过培养转化体大量生产和纯化重组蛋白的方法。 本发明能够缩短使用低浓度的DHFR抑制剂以高水平建立产生重组蛋白质的细胞系所需的时间,从而允许更有效地产生重组蛋白质。

Patent Agency Ranking