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    • 1. 发明申请
    • Determination of a Genotype of an Amplification Product at Multiple Allelic Sites
    • 确定多个等位基因位点扩增产物的基因型
    • US20120053069A1
    • 2012-03-01
    • US12618686
    • 2009-11-13
    • Kenneth J. LIVAKFederico Goodsaid
    • Kenneth J. LIVAKFederico Goodsaid
    • C40B30/04C40B40/06C12Q1/68
    • C12Q1/6858C12Q1/6818C12Q2561/101C12Q2537/143C12Q2563/107C12Q2531/119
    • A method is provided for genotyping a target sequence at at least two allelic sites by a 5′ nuclease amplification reaction. In one embodiment, the method includes performing a nucleic acid amplification on a target sequence having at least two different allelic sites using a nucleic acid polymerase having 5′-3′ nuclease activity and a primer capable of hybridizing to the target sequence in the presence of two or more sets of allelic oligonucleotide probes wherein at least all but one of the allelic oligonucleotide probes include a different fluorescer than the other probes and a quencher positioned on the probe to quench the fluorescence of the fluorescer; detecting a fluorescence spectrum of the amplification; calculating a fluorescence contribution of each fluorescer to the fluorescence spectrum; and determining a presence or absence of the different allelic variants based on the fluorescence contribution of each fluorescer to the combined fluorescence spectrum.
    • 提供了一种通过5'核酸酶扩增反应在至少两个等位基因位点对靶序列进行基因分型的方法。 在一个实施方案中,该方法包括使用具有5'-3'核酸酶活性的核酸聚合酶和能够与靶序列杂交的引物在具有至少两个不同等位基因位点的靶序列上进行核酸扩增 两组或多组等位基因寡核苷酸探针,其中等位基因寡核苷酸探针中的至少全部除一个之外包括与其它探针不同的荧光剂,以及位于探针上的猝灭剂以淬灭荧光剂的荧光; 检测扩增的荧光光谱; 计算每个荧光剂对荧光光谱的荧光贡献; 并且基于每个荧光剂对组合的荧光光谱的荧光贡献来确定不同等位基因变体的存在或不存在。