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    • 2. 发明授权
    • Hybrid plasmid of pBR322 and Streptomyces plasmid and E. coli containing
same
    • pBR322和Streptomyces质粒的杂交质粒和含有其的大肠杆菌
    • US4343906A
    • 1982-08-10
    • US068418
    • 1979-08-21
    • Fritz ReusserVedpal S. Malik
    • Fritz ReusserVedpal S. Malik
    • C12N15/76C12N1/20
    • C12N15/76
    • A process for cloning DNA into a suitable host, which comprises fragmenting said DNA to obtain fragmented DNA, ligating said fragmented DNA into a suitable vector to obtain chimeric (hybrid) DNA, and transforming said chimeric DNA into said ultimate host. By this process, the useful chemical plasmid pUC3, which is obtainable from a biologically pure culture of the microorganism Streptomyces sp. 3022a, NRRL 11441, is cloned into the well-known bacterium E. coli HB101. This cloning of pUC3 into E. coli HB101 enables the production of large amounts of plasmid pUC3 DNA. pUC3 is useful as a cloning vehicle in recombinant DNA work. For example, using recombinant DNA methodology, a desired gene, for example, the insulin gene, can be inserted into pUC3 and the resulting plasmid can then be transformed into a suitable host microbe which, upon culturing, produces the desired insulin.
    • 将DNA克隆到合适的宿主中的方法,其包括将所述DNA片段化以获得片段化的DNA,将所述片段化DNA连接到合适的载体中以获得嵌合(杂交)DNA,并将所述嵌合DNA转化到所述最终宿主中。 通过这个过程,可以从微生物链霉菌Streptomyces sp。的生物纯培养物获得的有用的化学质粒pUC3。 3022a,NRRL 11441克隆到公知的大肠杆菌HB101中。 将pUC3克隆到大肠杆菌HB101中能够产生大量的质粒pUC3DNA。 pUC3可用作重组DNA工作中的克隆载体。 例如,使用重组DNA方法,将期望的基因,例如胰岛素基因插入到pUC3中,然后将得到的质粒转化成合适的宿主微生物,培养后产生所需的胰岛素。