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    • 6. 发明申请
    • METHOD FOR NUCLEIC ACID ANALYSIS
    • 核酸分析方法
    • WO2005123957A2
    • 2005-12-29
    • PCT/US2005/020378
    • 2005-06-09
    • AMERSHAM BIOSCIENCES CORPFULLER, Carl, W.NELSON, John, R.
    • FULLER, Carl, W.NELSON, John, R.
    • C12Q1/68
    • C12Q1/6834C12Q1/6869C12Q2565/519C12Q2565/301C12Q2563/137C12Q2527/127C12Q2523/113
    • This invention provides methods for nucleic acid analysis. A closed complex of nucleic acid template, nucleotide and polymerase can be formed during polymerase reaction, absent divalent metal ion. This is used to trap the labeled nucleotide complementary to the next template nucleotide in the closed complex. Detection of the label allows determination of the identity of this next correct nucleotide. Identification can be either in place, as part of the complex, or as the dye is eluted from the complex when the reaction cycle is completed by the addition of divalent metal ion. In this way, sequential nucleotides of a DNA can be identified, effectively determining the DNA sequence. This method can be applied to nucleic acid single molecules or to collections of identical or nearly identical sequence such as PCR products or clones. Multiple templates can be sequenced in parallel, particularly if they are immobilized on a solid support.
    • 本发明提供核酸分析方法。 可以在聚合酶反应期间形成核酸模板,核苷酸和聚合酶的闭合复合物,不存在二价金属离子。 这用于捕获与封闭复合物中下一个模板核苷酸互补的标记核苷酸。 标签的检测允许确定下一个正确的核苷酸的身份。 识别可以作为复合物的一部分就位,或当通过添加二价金属离子完成反应循环时染料从络合物中洗脱出来。 以这种方式,可以鉴定DNA的连续核苷酸,有效地确定DNA序列。 该方法可以应用于核酸单分子或相同或几乎相同序列的集合,例如PCR产物或克隆。 多个模板可以并行测序,特别是如果它们固定在固体支持物上。