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    • 2. 发明申请
    • BROAD RANGE PCR AMPLIFICATION TECHNIQUES
    • BROAD RANGE PCR扩增技术
    • WO9929901A9
    • 1999-09-16
    • PCT/US9825665
    • 1998-12-03
    • GEN HOSPITAL CORPAUSUBEL FREDERICK MMINDRINOS MICHAELDRENKARD ELIANA
    • AUSUBEL FREDERICK MMINDRINOS MICHAELDRENKARD ELIANA
    • C12Q1/68C07H21/04C12P19/34
    • C12Q1/6858
    • Disclosed herein are methods and kits for determining whether a nucleic acid sequence includes a particular allele of a polymorphic sequence. One such method includes the steps of: (a) contacting a nucleic acid sequence, in the same or a separate reaction, with a first pair of PCR primers and a second pair of PCR primers under conditions that allow hybridization of the PCR primers to the nucleic acid sequence, the first pair of PCR primers hybridizing to opposite strands of the nucleic acid sequence and bordering the position of the polymorphic sequence, and the second pair of PCR primers hybridizing to opposite strands of the nucleic acid sequence and bordering the position of the polymorphic sequence, the PCR primers being characterized as follows: (i) one of the first pair of PCR primers (a) being complementary at its 3'-terminal nucleotide to a first allele of the polymorphic sequence (allele A), (b) being non-complementary at its 3'-terminal nucleotide to a second allele of the polymorphic sequence (allele B), and (c) being non-complementary to the nucleic acid sequence at a single non-complementary nucleotide in its 3'-terminal nucleotides 2-6; and (ii) one of the second pair of PCR primers (a) being complementary at its 3'-terminal nucleotide to the first allele of the polymorphic sequence (allele A), (b) being non-complementary at its 3'-terminal nucleotide to the second allele of the polymorphic sequence (allele B), and (c) being non-complementary to the nucleic acid sequence at one (and, preferably, two) or more nucleotides in its 3'-terminal nucleotides 2-6; (b) carrying out the amplification reactions; and (c) detecting an amplification product as an indication of the presence, in the nucleic acid sequence, of the first allele of the polymorphic sequence (allele A). In a preferred embodiment, this method is used to identify single nucleotide polymorphisms, for example, for genomic mapping purposes.
    • 本文公开了用于确定核酸序列是否包括多态性序列的特定等位基因的方法和试剂盒。 一种这样的方法包括以下步骤:(a)在相同或单独的反应中将核酸序列与第一对PCR引物和第二对PCR引物在允许PCR引物与 核酸序列,第一对PCR引物与核酸序列的相对链杂交并与多态性序列的位置相邻,第二对PCR引物与核酸序列的相对链杂交并与 多态性序列,PCR引物的特征如下:(i)第一对PCR引物(a)之一在其3'末端核苷酸与多态性序列(等位基因A)的第一等位基因互补,(b) 在其3'末端核苷酸处与多态性序列(等位基因B)的第二等位基因不互补,和(c)与其3'末端的单个非互补核苷酸与核酸序列不互补, 末端核苷酸2-6; 和(ii)第二对PCR引物(a)之一在其3'末端核苷酸与多态性序列(等位基因A)的第一等位基因互补,(b)在其3'端不互补 核苷酸至多态性序列(等位基因B)的第二等位基因,和(c)与其3'末端核苷酸2-6中的一个(优选2个)以上核苷酸与核酸序列不互补; (b)进行扩增反应; 和(c)检测扩增产物作为在核酸序列中存在多态性序列(等位基因A)的第一等位基因的指示。 在优选的实施方案中,该方法用于鉴定单核苷酸多态性,例如用于基因组测绘目的。