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    • 10. 发明授权
    • Methods and systems for estimating the melting temperature (TM) for polynucleotide molecules
    • 用于估计多核苷酸分子的熔解温度(TM)的方法和系统
    • US06889143B2
    • 2005-05-03
    • US10660253
    • 2003-09-11
    • Mark Aaron BehlkeLingyan HuangRichard OwczarzyJoseph Alan Walder
    • Mark Aaron BehlkeLingyan HuangRichard OwczarzyJoseph Alan Walder
    • C12Q1/68G01N20060101G01N33/48G01N33/50G06F17/00G06F17/10G06F17/11G06F19/20G06F19/22
    • G06F19/20C12Q1/6813G06F19/22
    • The invention relates to methods and systems for predicting or estimating the melting temperature of duplex nucleic acids, particularly duplexes of oligonucleotides which may be used, for example, as primers or probes in PCR and/or hybridization assays. The invention also relates to methods and systems for designing and selecting oligonucleotide probes and primers having a predicted melting temperature which is optimized for such assays. To this end, algorithms and methods are provided for predicting the melting temperature of a nucleic acid having a predetermined sequence. These methods and algorithms estimate the melting temperature of a nucleic acid duplex under particular salt conditions. The methods and algorithms use novel formulas, having terms and coefficients that are functions of the particular nucleotide sequence, to estimate the effect of particular salt conditions on the melting temperature. As such, the methods and systems of the invention provide superior result compared to existing methods, which do not consider sequence dependent effects of changing salt conditions.
    • 本发明涉及用于预测或估计双链体核酸,特别是寡核苷酸双链体的解链温度的方法和系统,其可用于例如PCR和/或杂交测定中的引物或探针。 本发明还涉及用于设计和选择寡核苷酸探针和引物的方法和系统,所述寡核苷酸探针和引物具有针对这种测定法优化的预测的熔融温度。 为此,提供了用于预测具有预定序列的核酸的解链温度的算法和方法。 这些方法和算法估计在特定盐条件下核酸双链体的解链温度。 方法和算法使用具有作为特定核苷酸序列的功能的术语和系数的新型公式来估计特定盐条件对熔融温度的影响。 因此,与现有方法相比,本发明的方法和系统提供了优异的结果,其不考虑改变盐条件的序列依赖性影响。