Nucleic acid analogue induced transcription of double stranded DNA
    21.
    发明授权
    Nucleic acid analogue induced transcription of double stranded DNA 失效
    核酸类似物诱导双链DNA转录

    公开(公告)号:US5837459A

    公开(公告)日:1998-11-17

    申请号:US653605

    申请日:1996-05-24

    摘要: RNA is transcribed from a double stranded DNA template by forming a complex by hybridizing to the template at a desired transcription initiation site one or more oligonucleic acid analogues of the PNA type capable of forming a transcription initiation site with the DNA and exposing the complex to the action of a DNA dependant RNA polymerase in the presence of nucleoside triphosphates. Equal length transcripts may be obtained by placing a block to transcription downstream from the initiation site or by cutting the template at such a selected location. The initiation site is formed by displacement of one strand of the DNA locally by the PNA hybridization.

    摘要翻译: 通过在期望的转录起始位点与模板杂交形成复合物,RNA可以从双链DNA模板转录成能够与DNA形成转录起始位点的一种或多种PNA型寡核酸类似物,并将该复合物暴露于 在DNA核苷三磷酸存在下DNA依赖性RNA聚合酶的作用。 可以通过将起始位点的下游位置嵌段转移到转录起始位点或通过在这样的选择位置切割模板来获得相等的长度转录物。 通过PNA杂交局部置换DNA的一条链来形成起始位点。

    Template-dependent ligation with PNA-DNA chimeric probes
    29.
    发明授权
    Template-dependent ligation with PNA-DNA chimeric probes 有权
    与PNA-DNA嵌合探针的模板依赖性连接

    公开(公告)号:US06297016B1

    公开(公告)日:2001-10-02

    申请号:US09416003

    申请日:1999-10-08

    IPC分类号: C12Q168

    CPC分类号: C12Q1/6862

    摘要: The invention provides methods, kits, and compositions for ligation of PNA-DNA chimeric probes and oligonucleotides when they are hybridized adjacently to template nucleic acids using ligases and ligation reagents. Structural requirements of the chimeras for ligation include 5 to 15 contiguous PNA monomer units, 2 or more contiguous nucleotides, and a 3′ hydroxyl or 5′ hydroxyl terminus. The chimera and/or oligonucleotide may be labelled with fluorescent dyes or other labels. The methods include, for example, oligonucleotide-ligation assays (OLA) and single nucleotide polymorphism detection.

    摘要翻译: 当使用连接酶和连接试剂将它们与模板核酸相互杂交时,本发明提供用于连接PNA-DNA嵌合探针和寡核苷酸的方法,试剂盒和组合物。 用于连接的嵌合体的结构要求包括5至15个连续的PNA单体单元,2个或更多个连续核苷酸,以及3'羟基或5'羟基末端。 嵌合体和/或寡核苷酸可以用荧光染料或其他标记物标记。 所述方法包括例如寡核苷酸连接测定(OLA)和单核苷酸多态性检测。