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    • 4. 发明申请
    • METHODS AND KITS FOR AMPLIFYING DNA
    • 扩增DNA的方法和试剂盒
    • WO2008108843A2
    • 2008-09-12
    • PCT/US2007/063103
    • 2007-03-01
    • GEN-PROBE INCORPORATEDBECKER, Michael, M.LAM, Wai-ChungLIVEZEY, Kristin, W.BRENTANO, Steven, T.KOLK, Daniel, P.SCHRODER, Astrid, R.W.
    • BECKER, Michael, M.LAM, Wai-ChungLIVEZEY, Kristin, W.BRENTANO, Steven, T.KOLK, Daniel, P.SCHRODER, Astrid, R.W.
    • C12Q1/68
    • C12Q1/6865C12Q2533/101C12Q2525/186C12Q2521/107
    • Novel methods of synthesizing multiple copies of a target nucleic acid sequence which are autocatalytic are disclosed (/. e., able to cycle automatically without the need to modify reaction conditions such as temperature, pH, or ionic strength and using the product of one cycle in the next one). In particular, methods of nucleic acid amplification are disclosed which are robust and efficient, while reducing the appearance of side-products. In general, the methods use priming oligonucleotides that target only one sense of a target nucleic acid, a promoter oligonucleotide modified to prevent polymerase extension from its 3 '-terminus and, optionally, a means for terminating a primer extension reaction, to amplify RNA or DNA molecules in vitro, while reducing or substantially eliminating the formation of side-products. The disclosed methods minimizes or substantially eliminate the emergence of side-products, thus providing ahigh level of specificity. Furthermore, the appearance of side-products can complicate the analysis of the amplification reaction by various molecular detection techniques. The disclosed methods minimize or substantially eliminate this problem, thus providing enhanced levels of sensitivity.
    • 公开了合成自催化的靶核酸序列的多个拷贝的新方法(即,能够自动循环而不需要修改诸如温度,pH或离子的反应条件 力量和使用下一个周期的产品)。 具体而言,公开了稳定且有效的核酸扩增方法,同时减少副产物的出现。 一般而言,所述方法使用仅靶向靶核酸的一种意义的引发寡核苷酸,经修饰以阻止聚合酶从其3'-末端延伸的启动子寡核苷酸,以及任选地终止引物延伸反应的手段,以扩增RNA或 体外DNA分子,同时减少或基本消除副产物的形成。 所公开的方法最小化或基本上消除了副产物的出现,从而提供了高水平的特异性。 此外,副产物的出现可能会使各种分子检测技术对扩增反应的分析复杂化。 所公开的方法最小化或基本上消除了这个问题,因此提供了增强的灵敏度水平。