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    • 1. 发明申请
    • METHOD FOR NUCLEIC ACID AMPLIFICATION BY TRANSCRIPTION USING DISPLACEMENT, AND REAGENTS AND KIT THEREFOR
    • 通过使用位移转录进行核酸扩增的方法及其试剂和试剂盒
    • WO1995003426A2
    • 1995-02-02
    • PCT/FR1994000935
    • 1994-07-26
    • BIO MERIEUXCLEUZIAT, PhilippeGUILLOU-BONNICI, FrançoiseMALLET, FrançoisLEVASSEUR, Pierre
    • BIO MERIEUX
    • C12Q01/68
    • C12Q1/6853C12Q1/6844C12Q1/6846C12Q2531/119C12Q2521/107C12Q2521/101C12Q2537/1373
    • A method for amplifying a target nucleic acid sequence by providing a polynucleotide such as VII including the sequence to be amplified as well as an RNA polymerase promoter sequence, and contacting said polynucleotide, in the presence of a system having RNA polymerase activity, RNA-dependent DNA polymerase activity, and DNA-dependent DNA polymerase activity, and capable of strand displacement, with a set of primers includinf a primer such as A capable of hybridising with a segment complementary to a portion of the sequence to be amplified, wherein A includes an upstream RNA polymerase promoter sequence then an arbitrary sequence, a primer such as D contains said RNA polymerase promoter sequence, and a primer such as C contains said arbitrary sequence. The elongation product of D is displaced by the elongation product of C, and the elongation product of D is thus obtained in the form of single-stranded VIII. Hybridisation of A on VIII followed by elongation forms double-stranded product X which can undergo transcription, with amplification, to give single-stranded RNA VII bis. An analogous system of 3 primers B, E and F similary produces single-stranded RNA VII from VII bis. Hence the amplification method, which can operate isothermally, is cyclic.
    • 通过提供包括待扩增的序列的多核苷酸,以及RNA聚合酶启动子序列,并且在具有RNA聚合酶活性的系统存在下使所述多核苷酸与RNA聚合酶活性相接触来扩增靶核酸序列的方法 DNA聚合酶活性和DNA依赖性DNA聚合酶活性,并且能够使用一组引物,包括能够与与待扩增的序列的一部分互补的区段杂交的引物如A的引物,其中A包括 上游RNA聚合酶启动子序列然后是任意序列,引物如D含有所述RNA聚合酶启动子序列,引物如C包含所述任意序列。 D的伸长率由C的伸长率移位,因此以单链VIII的形式得到D的伸长率。 A对VIII的杂交,然后延伸形成双链产物X,其可经历转录,扩增,得到单链RNA VII bis。 3个引物B,E和F的类似系统同样产生VII bis的单链RNA VII。 因此,可以等温操作的扩增方法是循环的。