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    • 10. 发明公开
    • New detection format for hot start real time polymerase chain reaction
    • Neues格式zur Detektion von Heissstart- und Echtzeit-Polymerasekettenreaktion
    • EP1502961A1
    • 2005-02-02
    • EP04017701.6
    • 2004-07-27
    • Roche Diagnostics GmbHF.HOFFMANN-LA ROCHE AG
    • Heindl, Dieter, Dr.Ankenbauer, Waltraud, Dr.Laue, Frank
    • C12Q1/68
    • C12Q1/68
    • The present invention is directed to a method and a composition for amplifying and detecting a target nucleic comprising a) subjecting said target nucleic acid to a real time PCR amplification reaction in the presence of (i) a thermostable DNA Polymerase, (ii) a thermostable double strand dependent 3'-5' exonuclease having a temperature optimum above 37°C , (iii) a pair of amplification primers, (iv) Deoxynucleoside-Tri-Phosphates, (v) a detecting oligonucleotide carrying a first label and a second label, said first label being capable of acting as a fluorescent reporter entity when excited with light of an appropriate wavelength, said second label being capable of acting as a fluorescence quenching entity of said fluorescent reporter entity, characterized in that one label is bound to the 3' end of said detecting oligonucleotide, and further characterized in that the other label is bound either internally or at the 5' end to said detecting oligonucleotide, and b) monitoring fluorescence of said fluorerescent reporter entity at least after a plurality of amplification cycles.
    • 本发明涉及一种用于扩增和检测靶核酸的方法和组合物,其包括:a)在(i)耐热性DNA聚合酶,(ii)热稳定性聚合酶存在下使所述靶核酸进行实时PCR扩增反应 温度最高在37℃以上的双链相关3'-5'外切核酸酶,(iii)一对扩增引物,(iv)脱氧核苷 - 三磷酸酯,(v)携带第一标记和第二标记的检测寡核苷酸 所述第一标记当用适当波长的光激发时能够用作荧光报道实体,所述第二标记能够用作所述荧光报道实体的荧光猝灭实体,其特征在于一个标记结合到3 所述检测寡核苷酸的末端,其特征还在于另一个标记在内部或在5'端与所述检测寡核苷酸结合,以及b)监测荧光 至少在多个扩增循环后,所述荧光报道实体的阳离子。