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    • 1. 发明申请
    • PLASMID CURING
    • 等离子体固化
    • WO2007129087A1
    • 2007-11-15
    • PCT/GB2007/001682
    • 2007-05-09
    • THE UNIVERSITY OF BIRMINGHAMTHOMAS, Christopher, Morton
    • THOMAS, Christopher, Morton
    • C12N15/09
    • C12N15/63
    • The present invention relates to plasmid curing, and particularly to efficient and stress-free methods for displacing resident or endogenous plasmids from a host cell, such as a bacterium. The invention extends to method of displacing a plasmid comprising a post-segregational killing system from a host cell, the method comprising introducing a recombinant nucleic acid molecule into a host cell harbouring a plasmid comprising a post-segregational killing (PSK) system, characterised in that the recombinant nucleic acid molecule is adapted to neutralise the toxic effects of the plasmid' s post-segregational killing system, and wherein the nucleic acid molecule is also adapted to outcompete or inhibit replication of the plasmid. The invention further extends to recombinant nucleic acid molecules that can be used in this method, as well as further uses of the methods and nucleic acid molecules of the invention.
    • 本发明涉及质粒固化,特别涉及用于从宿主细胞(例如细菌)中置换居民或内源性质粒的有效和无应力的方法。 本发明延伸到将包含后隔离杀伤系统的质粒从宿主细胞置换的方法,所述方法包括将重组核酸分子引入宿主细胞中,所述质粒包含分离后杀伤(PSK)系统,其特征在于 所述重组核酸分子适于中和所述质粒的分离后杀灭系统的毒性作用,并且其中所述核酸分子也适于超出或抑制所述质粒的复制。 本发明进一步延伸到可用于该方法的重组核酸分子,以及本发明的方法和核酸分子的进一步使用。