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    • 4. 发明申请
    • CATEGORIZATION OF DNA SAMPLES
    • DNA样品的分类
    • US20130078626A1
    • 2013-03-28
    • US13492187
    • 2012-06-08
    • Adam WasserstromDan Frumkin
    • Adam WasserstromDan Frumkin
    • C12Q1/68
    • C12Q1/6876C12Q1/6809C12Q1/6858C12Q1/6881C12Q2600/154C12Q2521/331C12Q2525/151C12Q2537/165
    • The present application describes methods for accurate and cost-effective categorization of DNA samples into different types of in vitro generated DNA or different types of natural DNA such as from different tissues and/or physiological/pathological states. The invention achieves categorization by comparing “signal ratios” that are correlated to ratios of methylation levels at specific genomic loci, but does not rely on calculation of actual methylation levels at any genomic locus. Therefore the disclosed inventive method eliminates the requirement for external DNA species and controls, thereby simplifying and increasing the accuracy of the assay. The described inventive technology also enables performing the categorization of DNA together with DNA profiling in the same reaction, thereby allowing for concomitant categorization and determination of identity of the samples.
    • 本申请描述了将DNA样品精确和成本有效地分类为不同类型的体外产生的DNA或不同类型的天然DNA例如来自不同组织和/或生理/病理状态的方法。 本发明通过比较与特定基因座位点甲基化水平的比例相关的信号比例来实现分类,但不依赖于任何基因组位点处的实际甲基化水平的计算。 因此,所公开的本发明方法消除了对外部DNA物种和对照的需求,从而简化并提高了测定的准确性。 所描述的本发明技术还能够在相同的反应中进行DNA分类以及DNA分析,从而允许对样品的同一性进行同时分类和确定。