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    • 92. 发明申请
    • SYSTEM AND METHOD FOR NUCLEIC ACIDS SEQUENCING BY PHASED SYNTHESIS
    • 通过PHASED合成序列测定核酸的系统和方法
    • US20090312188A1
    • 2009-12-17
    • US12481799
    • 2009-06-10
    • Reuven DuerJames Herron
    • Reuven DuerJames Herron
    • C40B20/08C40B60/10
    • G02B27/56B01J2219/00529B01J2219/00596B01J2219/00659B01J2219/00704B01J2219/00711B01J2219/00722B01L3/502715B01L2300/0654B01L2300/0819B82Y30/00C12N15/1068C12Q1/6869C12Q1/6874G01N21/6452G01N21/648G01N2021/6441G02B6/24C12Q2523/319C12Q2535/107C12Q2565/607
    • A system and methods of sequencing a nucleic acid by detecting the identity of a fluorescent nucleotide analogue incorporated at the 3′ end of a growing nucleic acid strand are provided. One method includes the steps of (a) immobilizing a plurality of complexes comprising a template nucleic acid, a primer configured to hybridize to the template and a polymerase, at a plurality of optical sensing sites of a substrate, wherein the substrate is part of a waveguide-based optical scanning system; (b) extending the primer by a single nucleotide with the polymerase and one or more fluorescent nucleotide analogues using a polymerase extension reaction, wherein each type of fluorescent nucleotide analogue comprises a unique fluorescent tag optionally configured to inhibit further primer extension and/or a blocking agent at the 3′ end and wherein incorporation of the fluorescent nucleotide analogue reversibly terminates the polymerase extension reaction; (c) detecting the unique tag of the fluorescent nucleotide analogue by optically scanning the substrate using the optical scanning system to identify the fluorescent nucleotide analogue incorporated by the polymerase reaction; (d) recording the results of the optical scanning of the substrate; (e) reversing the termination of the polymerase extension reaction by providing a photo-cleaving pulse of light to one or more of the optical sensing sites of the substrate to cleave the fluorescent tag or the blocking agent; and (f) repeating steps (b) through (e).
    • 提供了通过检测在生长的核酸链的3'末端引入的荧光核苷酸类似物的身份来测序核酸的系统和方法。 一种方法包括以下步骤:(a)在衬底的多个光学感测位置处固定包含模板核酸的多个复合物,配置为与模板杂交的引物和聚合酶,其中所述底物是 基于波导的光学扫描系统; (b)使用聚合酶延伸反应,使用聚合酶和一个或多个荧光核苷酸类似物将引物延伸单个核苷酸,其中每种类型的荧光核苷酸类似物包含独特的荧光标签,其可选地配置为抑制进一步的引物延伸和/或阻断 3'端的试剂,其中掺入荧光核苷酸类似物可逆地终止聚合酶延伸反应; (c)通过使用光学扫描系统光学扫描底物来检测荧光核苷酸类似物的唯一标记,以鉴定通过聚合酶反应引入的荧光核苷酸类似物; (d)记录基板的光学扫描的结果; (e)通过向衬底的一个或多个光学感测位置提供光切割脉冲以切割荧光标签或封闭剂来反转聚合酶延伸反应的终止; 和(f)重复步骤(b)至(e)。
    • 99. 发明授权
    • Method and apparatus for producing sequence verified DNA
    • US10822605B2
    • 2020-11-03
    • US14268832
    • 2014-05-02
    • GENSINTA, INC.
    • Austen HeinzAnselm LevskayaJohn T. Mulligan
    • C12N15/10C40B20/08C40B50/14
    • A method of retrieving a subset of polynucleotide molecules from a mixture of polynucleotide molecules includes receiving a mixture of nucleotide sequences comprising one or more polynucleotide molecules, synthesizing one or more identifier (ID) regions onto the one or more polynucleotide molecules, and sequencing members of the population of polynucleotide molecules to associate the sequence of one or more of the molecules (the “Polynucleotide Sequence”) with the sequence of the attached ID region (the “ID Sequence”). The method also includes generating a bead-bound library of one or more beads comprising subsets of identical polynucleotide molecules. Each bead is identified by the ID Sequence of the associated Polynucleotide Sequence. The method further includes sequencing the one or more ID regions of each bead to generate ID Sequence information for each bead, combining the Polynucleotide Sequence information, the one or more ID Sequences, and coordinates of each bead to identify the Polynucleotide Sequence on the bead, and retrieving the bead with its associated Polynucleotide Sequence from the flow cell based on the absolute coordinate position of the bead.