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    • 7. 发明申请
    • SYSTEMS AND METHODS FOR DETECTING NUCLEIC ACIDS
    • 用于检测核酸的系统和方法
    • US20080193940A1
    • 2008-08-14
    • US11965807
    • 2007-12-28
    • Vissarion AivazachviliKristian ScabooEugene Spier
    • Vissarion AivazachviliKristian ScabooEugene Spier
    • C12Q1/68
    • C12Q1/6823C12Q1/6825C12Q1/6827C12Q2531/113C12Q2521/307C12Q2525/161C12Q2525/301C12Q2565/607C12Q2565/519C12Q2521/301C12Q2561/109
    • A method and kit for detecting a target nucleic acid in a sample is described. The sample to be analyzed may include a primer which hybridizes to at least a portion of the target nucleic acid, a probe having a first region which hybridizes to at least a portion of the target nucleic acid and a second region having a detectable label, a polymerase which extends the hybridized primer and an enzyme comprising exonuclease activity that can cleave the hybridized hybridization probe to thereby generate a labeled probe fragment. At least one portion of the hybridization probe hybridizes to another portion of the hybridization probe to thereby form a folded structure. The method can involve melting the sample, reducing the temperature of the sample to allow primer and probe to each hybridize to at least a portion of single stranded target nucleic acid in the sample, elongating the primer and releasing the labeled probe fragment. The sample can be contacted with a solid support comprising surface bound capture probes which hybridize to the labeled probe fragments. The label can then be detected.
    • 描述了用于检测样品中靶核酸的方法和试剂盒。 要分析的样品可以包括与靶核酸的至少一部分杂交的引物,具有与靶核酸的至少一部分杂交的第一区的探针和具有可检测标记的第二区, 扩增杂交引物的聚合酶和包含外切核酸酶活性的酶,其可以切割杂交的杂交探针,从而产生标记的探针片段。 至少一部分杂交探针与杂交探针的另一部分杂交,从而形成折叠结构。 该方法可以包括熔化样品,降低样品的温度以使引物和探针各自与样品中的至少一部分单链靶核酸杂交,延长引物并释放标记的探针片段。 样品可以与包含与标记的探针片段杂交的表面结合捕获探针的固体支持物接触。 然后可以检测标签。