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    • 4. 发明申请
    • METHOD FOR MEASURING TARGET POLYNUCLEOTIDES AND NOVEL ASTHMA BIOMOLECULES
    • 用于测量目标多核苷酸和新型ASTHMA生物分子的方法
    • WO00029621A2
    • 2000-05-25
    • PCT/US1999/026931
    • 1999-11-12
    • C07K14/52C12Q1/68
    • C12Q1/6883C07K14/521C12Q1/6809C12Q1/683C12Q2600/158C12Q2539/103
    • The present invention provides a method for simultaneously determining the levels of selected target polynucleotide sequences in a sample. In the method, selected target sequences are amplified using sequence-selective primer pairs to form double-stranded copies. The copies are cleaved with one or more endonucleases, and first and second aliquots of the cleaved fragment mixture are ligated to first and second adaptors, respectively, to form mixtures of first and second adaptor-fragment conjugates. The aliquots are combined and ligated to form conjugate dimers containing a conjugate from each of the first and second conjugate mixtures. After optional amplification, the conjugates are treated to release the adaptor segments, yielding target-identifier dimers. The dimers are polymerized to form target-identifier dimer multimers, and the relative abundances of the target-identifiers in one or more dimer multimers to provide an estimate of the levels of the selected target sequences in the sample. The present invention is particularly useful for determining expression levels of mRNA gene sequences in a sample, and for evaluating changes in mRNA expression levels among different samples or in response to changes in sample conditions. Also disclosed are certain polynucleotides and polypeptides that are useful for a variety of applications, particularly relating to asthma.
    • 本发明提供了一种用于同时测定样品中所选择的靶多核苷酸序列的水平的方法。 在该方法中,使用序列选择性引物对扩增选择的靶序列以形成双链拷贝。 用一种或多种内切核酸酶切割拷贝,将分离的片段混合物的第一和第二等分试样分别连接到第一和第二衔接子,以形成第一和第二衔接子 - 片段缀合物的混合物。 将等分试样合并并连接以形成含有来自第一和第二共轭物混合物中的每一种的缀合物的共轭二聚体。 在任选扩增后,处理缀合物以释放适配器片段,产生靶标识号二聚体。 聚合二聚体以形成靶标识二聚体多聚体,以及一个或多个二聚体多聚体中靶标识别符的相对丰度,以提供样品中所选靶序列水平的估计。 本发明特别可用于确定样品中mRNA基因序列的表达水平,以及用于评估不同样品中mRNA表达水平的变化或响应样品条件变化。 还公开了可用于各种应用,特别是与哮喘有关的某些多核苷酸和多肽。