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    • 7. 发明授权
    • Method of measuring nucleic acids and reagent used therefor
    • 测量用于其的核酸和试剂的方法
    • US5882863A
    • 1999-03-16
    • US658398
    • 1996-06-05
    • Kyoko ImaiJunko MomoseYasushi Nomura
    • Kyoko ImaiJunko MomoseYasushi Nomura
    • C12Q1/68G01N33/50G01N33/58C12Q1/70C07H21/02G01N33/544
    • C12Q1/6818C12Q1/6823C12Q1/683
    • A nucleic acid sample is mixed with a nucleotide reagent under hybridizing conditions. The nucleotide reagent contains nucleotides each combined at 3'- and 5'-terminals thereof with particles. After cleaving double strands of hybridization products, at least ones of particles separated from each other by the cleaving and particles held in the unreacted reagent and subjected to no cleavage are detected for measuring nucleic acids in the sample. Since the particles separated from each other by the cleaving and the particles held in the unreacted reagent and subjected to no cleavage are different in size of particle masses from each other, these two groups of particles can be discriminated and detected. Therefore, a labeling substance in the unreacted reagent is no longer required to be washed and separated, enabling nucleic acids to be quickly measured with high sensitivity.
    • 在杂交条件下将核酸样品与核苷酸试剂混合。 核苷酸试剂含有在3'和5'末端与颗粒结合的核苷酸。 在切割双链杂交产物之后,检测至少一个通过切割彼此分离的颗粒和保持在未反应试剂中的颗粒并且不进行切割,以测量样品中的核酸。 由于通过裂开彼此分离的颗粒和保持在未反应试剂中的颗粒彼此不分裂,所以可以鉴别和检测这两组颗粒。 因此,不再需要清洗和分离未反应试剂中的标记物质,能够以高灵敏度快速测定核酸。