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    • 9. 发明授权
    • Method for making available a priming oligonucleotide
    • 提供引物寡核苷酸的方法
    • US07939260B2
    • 2011-05-10
    • US12389993
    • 2009-02-20
    • Michael M. BeckerSteven T. BrentanoKristin W. LivezeyNorman C. NelsonGary P. Schroth
    • Michael M. BeckerSteven T. BrentanoKristin W. LivezeyNorman C. NelsonGary P. Schroth
    • C12Q1/68C12P19/34
    • C12P19/34C12Q1/6865C12Q2537/163C12Q2521/325C12Q2521/107C12Q2525/186C12Q2533/101C12Q2525/143
    • The present invention is directed to novel methods of synthesizing multiple copies of a target nucleic acid sequence which are autocatalytic (i.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, the present invention discloses a method of nucleic acid amplification which is robust and efficient, while reducing the appearance of side-products. The method uses only one primer, the “priming oligonucleotide,” 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 method of the present invention minimizes or substantially eliminates the emergence of side-products, thus providing a high level of specificity. Furthermore, the appearance of side-products can complicate the analysis of the amplification reaction by various molecular detection techniques. The present invention minimizes or substantially eliminates this problem, thus providing an enhanced level of sensitivity.
    • 本发明涉及合成目标核酸序列的多个拷贝的新型方法,所述目标核酸序列是自动催化的(即,能够自动循环而不需要修饰诸如温度,pH或离子强度的反应条件,并且使用一种 循环在下一个)。 特别地,本发明公开了一种鲁棒有效的核酸扩增方法,同时减少副产物的外观。 该方法仅使用一种引物,即引物寡核苷酸,经修饰的启动子寡核苷酸,用于防止聚合酶从其3'末端延伸,以及任选的终止引物延伸反应的手段,以在体外扩增RNA或DNA分子,同时 减少或基本上消除副产物的形成。 本发明的方法使副产物的出现最小化或基本上消除,从而提供高水平的特异性。 此外,副产物的出现可能通过各种分子检测技术使扩增反应的分析复杂化。 本发明使这个问题最小化或基本消除,从而提供了增强的灵敏度。
    • 10. 发明申请
    • CIRCULARIZED TEMPLATES FOR SEQUENCING
    • 用于测序的循环模板
    • US20140378318A1
    • 2014-12-25
    • US14342725
    • 2012-09-06
    • Steven T. BrentanoDmitry LyakhovMatthew C. FriedenbergAnne-Laure Shapiro
    • Steven T. BrentanoDmitry LyakhovMatthew C. FriedenbergAnne-Laure Shapiro
    • C12Q1/68
    • The invention provides methods of forming a circular template for sequencing a target nucleic acid. The circular template is generated by amplification of a segment of the target nucleic acid with chimeric primers with complementary 5′ ends. The circular template has a single nick or gap providing a site for initiation of template-directed extension for sequence analysis. Sequencing of a single template generates reads of alternating segments of the same strand of the target nucleic spaced by primer segments. The different reads of the same strand of the target nucleic acid can be compiled to generate a consensus sequence. Because only one strand of the target nucleic acid is sequenced per reaction, the present method avoids errors introduced by unwittingly combining sequences of both strands of a heteroduplex PCR product. Because only one strand of the target nucleic acid is sequenced per reaction, the present method avoids errors introduced by unwittingly combining sequences of both strands of a heteroduplex PCR product.
    • 本发明提供形成用于测序靶核酸的圆形模板的方法。 通过用具有互补的5'末端的嵌合引物扩增靶核酸的片段来产生圆形模板。 圆形模板具有单个切口或间隙,提供用于启动用于序列分析的模板指导扩展的位点。 单个模板的测序产生与引物区间隔的靶核心的相同链的交替片段的读数。 可以编译目标核酸的相同链的不同读数以产生共有序列。 因为每个反应只对靶核酸的一条链进行测序,所以本方法避免了通过不经意地组合异源双链PCR产物的两条链的序列引入的错误。 因为每个反应只对靶核酸的一条链进行测序,所以本方法避免了通过不经意地组合异源双链PCR产物的两条链的序列引入的错误。