申请人:PROLIGO, LLC
公开号:US20030143591A1
公开(公告)日:2003-07-31
The invention comprises novel methods and strategies to detect and/or quantify nucleic acid analytes. The methods involve nucleic acid probes with covalently conjugated dyes, which are attached either at adjacent nucleotides or at the same nucleotide of the probe and novel linker molecules to attach the dyes to the probes. The nucleic acid probes generate a fluorescent signal upon hybridization to complementary nucleic acids based on the interaction of one of the attached dyes, which is either an intercalator or a DNA groove binder, with the formed double stranded DNA. The methods can be applied to a variety of applications including homogeneous assays, real-time PCR monitoring, transcription assays, expression analysis on nucleic acid microarrays and other microarray applications such as genotyping (SNP analysis). The methods further include pH-sensitive nucleic acid probes that provide switchable fluorescence signals that are triggered by a change in the pH of the medium.
该发明包括检测和/或定量核酸分析物的新方法和策略。这些方法涉及具有共价结合染料的核酸探针,这些染料附着在探针的相邻核苷酸或同一核苷酸上,并涉及用于将染料连接到探针的新型连接分子。核酸探针在与互补核酸杂交时产生荧光信号,基于附着的染料之一(可以是插入剂或DNA沟结合剂)与形成的双链DNA的相互作用。这些方法可应用于各种应用,包括均相分析、实时PCR监测、转录分析、核酸微阵列上的表达分析以及其他微阵列应用,如基因分型(SNP分析)。该方法还包括pH敏感的核酸探针,提供可通过介质pH变化触发的可切换荧光信号。