Terminal-phosphate-labeled nucleotides with new linkers
    2.
    发明授权
    Terminal-phosphate-labeled nucleotides with new linkers 有权
    末端磷酸酯标记的核苷酸与新的接头

    公开(公告)号:US07393640B2

    公开(公告)日:2008-07-01

    申请号:US10772996

    申请日:2004-02-05

    IPC分类号: C12Q1/68 C12P19/34

    摘要: The present invention describes methods of using terminal-phosphate-labeled nucleotides in the presence of a manganese salt to enhance their substrate properties towards various enzymes. Particularly described are methods of detecting a nucleic acid in a sample, based on the use of terminal-phosphate-labeled nucleotides as substrates for nucleic acid polymerases, in the presence of a manganese salt. Further provided are manganese complexes of terminal-phosphate-labeled nucleotides as well as terminal-phosphate-labeled nucleotides with new linkers with enhanced substrate properties.

    摘要翻译: 本发明描述了在锰盐存在下使用末端磷酸酯标记的核苷酸以增强其对各种酶的底物性质的方法。 特别描述的是在锰盐存在的情况下,基于使用末端磷酸酯标记的核苷酸作为核酸聚合酶的底物,检测样品中的核酸的方法。 还提供了末端磷酸酯标记的核苷酸的锰络合物以及具有增强的底物性质的新接头的末端磷酸酯标记的核苷酸。

    Nucleic acid amplification with terminal-phosphate labeled nucleotides
    3.
    发明授权
    Nucleic acid amplification with terminal-phosphate labeled nucleotides 有权
    用磷酸末端标记的核苷酸扩增核酸

    公开(公告)号:US07125671B2

    公开(公告)日:2006-10-24

    申请号:US10651362

    申请日:2003-08-29

    IPC分类号: C12Q1/68 C12P19/34

    摘要: The present invention relates generally to the use of terminal-phosphate-labeled nucleotides having three or more phosphates as substrates for nucleic acid polymerases and their use in DNA amplification. The labels employed are chemiluminescent, fluorescent, electrochemical and chromogenic moieties as well as mass tags and include those that are directly detectable, detectable after enzyme activation or feed into other processes to generate a different signal. The signal generated from the attached dyes may also be used to quantify the amount of amplification. Further provided are stabilizers that enhance the stability of terminal-phosphate labeled nucleoside polyphosphates in aqueous solutions and are useful for reducing non-enzymatic hydrolysis of these nucleotides, hence decrease background.

    摘要翻译: 本发明一般涉及具有三种或更多种磷酸盐的末端磷酸酯标记的核苷酸作为核酸聚合酶的底物及其在DNA扩增中的应用。 使用的标记是化学发光,荧光,电化学和显色部分以及质量标签,并且包括直接可检测的标记,可在酶活化后进行或进入其它过程以产生不同信号。 从连接的染料产生的信号也可用于量化扩增量。 还提供了增强末端磷酸酯标记的核苷多磷酸酯在水溶液中的稳定性的稳定剂,并且可用于减少这些核苷酸的非酶水解,从而降低背景。

    Terminal-phosphate-labeled nucleotides and methods of use

    公开(公告)号:US07052839B2

    公开(公告)日:2006-05-30

    申请号:US10113030

    申请日:2002-04-01

    IPC分类号: C12Q1/68

    摘要: The present invention describes methods of detecting a nucleic acid in a sample, based on the use of terminal-phosphate-labeled nucleotides as substrates for nucleic acid polymerases. The methods provided by this invention utilize a nucleoside polyphosphate, dideoxynucleoside polyphosphate, or deoxynucleoside polyphosphate analogue which has a colorimetric dye, chemiluminescent, or fluorescent moiety, a mass tag or an electrochemical tag attached to the terminal-phosphate. When a nucleic acid polymerase uses this analogue as a substrate, an enzyme-activatable label would be present on the inorganic polyphosphate by-product of phosphoryl transfer. Cleavage of the polyphosphate product of phosphoryl transfer via phosphatase leads to a detectable change in the label attached thereon. When the polymerase assay is performed in the presence of a phosphatase, there is provided a convenient method for real-time monitoring of DNA or RNA synthesis and detection of a target nucleic acid.

    DNA polymerases having amino acid substitutions and homologs thereof
    7.
    发明授权
    DNA polymerases having amino acid substitutions and homologs thereof 失效
    具有氨基酸取代的DNA聚合酶及其同系物

    公开(公告)号:US06875573B2

    公开(公告)日:2005-04-05

    申请号:US10190967

    申请日:2002-07-08

    IPC分类号: C12N9/12 C12Q1/68 C07H21/04

    CPC分类号: C12N9/1252

    摘要: Thermostable DNA polymerases both in native form and having single amino acid substitutions and optionally N-terminal deletions are disclosed. These polymerases exhibit a substantial improvement of DNA sequencing performance compared to Taq DNA polymerase. The instant DNA polymerases also possess improved salt tolerance.

    摘要翻译: 公开了天然形式和具有单个氨基酸取代和任选的N-末端缺失的热稳定的DNA聚合酶。 与Taq DNA聚合酶相比,这些聚合酶显示出DNA测序性能的显着改善。 即时DNA聚合酶也具有改善的耐盐性。

    Allele specific primer extension
    9.
    发明授权
    Allele specific primer extension 有权
    等位基因特异性引物延伸

    公开(公告)号:US07560254B2

    公开(公告)日:2009-07-14

    申请号:US10651558

    申请日:2003-08-29

    摘要: A method of characterizing a nucleic acid sample is provided that includes the steps of: (a) conducting a DNA polymerase reaction that includes the reaction of a template, an allele specific primer, at least one terminal phosphate-labeled nucleotide, DNA polymerase, and optionally an enzyme having 3′→5′ exonuclease activity when the primer is non-hydrolyzable, which reaction results in the production of labeled polyphosphate; (b) permitting the labeled polyphosphate to react with a phosphatase to produce a detectable species; (c) detecting the detectable species; and (d) characterizing the nucleic acid sample based on such detection.

    摘要翻译: 提供了表征核酸样品的方法,其包括以下步骤:(a)进行DNA聚合酶反应,其包括模板,等位基因特异性引物,至少一个末端磷酸酯标记的核苷酸,DNA聚合酶和 任选地当引物不可水解时具有3'→5'核酸外切酶活性的酶,该反应导致标记的多磷酸盐的产生; (b)允许标记的多磷酸酯与磷酸酶反应以产生可检测的物质; (c)检测可检测物种; 和(d)基于这种检测来表征核酸样品。

    TERMINAL PHOSPHATE BLOCKED NUCLEOSIDE POLYPHOSPHATES
    10.
    发明申请
    TERMINAL PHOSPHATE BLOCKED NUCLEOSIDE POLYPHOSPHATES 有权
    末端磷酸盐封闭的核苷酸多磷酸酯

    公开(公告)号:US20070292879A1

    公开(公告)日:2007-12-20

    申请号:US11781986

    申请日:2007-07-24

    IPC分类号: C12Q1/68

    摘要: The present invention describes terminal phosphate blocked nucleoside polyphosphates that are stable at high temperature and their use in nucleic acid amplification and analysis. Current invention further describes charge modified terminal phosphate blocked nucleoside polyphosphates for improved incorporation and direct loading of nucleic acid sequencing reactions onto separating media.

    摘要翻译: 本发明描述了在高温下稳定的磷酸封端的磷酸核苷多磷酸,并且其用于核酸扩增和分析。 本发明进一步描述了电荷修饰的末端磷酸酯封闭的核苷多磷酸盐,用于改进核酸测序反应在分离介质上的掺入和直接加载。