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    • 9. 发明申请
    • PARTITIONING OF DNA SEQUENCING LIBRARIES INTO HOST AND MICROBIAL COMPONENTS
    • 将DNA序列分析成宿主和微生物成分的分类
    • US20150232834A1
    • 2015-08-20
    • US14619011
    • 2015-02-10
    • The Board of Trustees of the Leland Stanford Junior University
    • Carlos D. BustamanteMeredith L. Carpenter
    • C12N15/10
    • C12N15/1065C12N15/1006C12N15/1013C12Q2525/191C12Q2537/159
    • Described herein is a method for isolating microbial DNA from a sample that comprises host DNA and microbial DNA. In some embodiments, the method may comprise: obtaining a tagged DNA sample, wherein the tagged DNA sample contains host DNA and microbial DNA, both comprising an appended universal adaptor; b) hybridizing the extracted DNA, in solution, with affinity-tagged RNA probes generated by in vitro transcribing, in the presence of an affinity-tagged ribonucleotide, a library of fragmented host DNA that has been ligated to an RNA promoter adaptor; c) binding the product of step b) with a capture agent that is tethered to a substrate, in the presence of RNA oligonucleotides that are complementary to or have the same sequence as one or more strands of the universal adaptor, thereby capturing the host DNA on the substrate; and d) collecting the unbound DNA, wherein the unbound DNA comprises the microbial DNA.
    • 本文描述了从包含宿主DNA和微生物DNA的样品中分离微生物DNA的方法。 在一些实施方案中,所述方法可以包括:获得标记的DNA样品,其中所述标记的DNA样品含有宿主DNA和微生物DNA,其均包含附加的通用适配器; b)将已提取的DNA在溶液中与在亲和标记的核糖核苷酸存在下通过体外转录产生的亲和标记的RNA探针杂交,已经连接到RNA启动子衔接子的片段化宿主DNA文库; c)在与通用衔接子的一条或多条链互补或具有相同序列的RNA寡核苷酸的存在下,将步骤b)的产物与束缚于底物的捕获剂结合,从而捕获宿主DNA 在基材上 和d)收集未结合的DNA,其中未结合的DNA包含微生物DNA。