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    • 1. 发明申请
    • METHODS AND DEVICES FOR CHARACTERIZING DUPLEX NUCLEIC ACID MOLECULES
    • 用于表征双重核酸分子的方法和装置
    • WO0242496A2
    • 2002-05-30
    • PCT/US0143309
    • 2001-11-21
    • UNIV CALIFORNIAHAUSSLER DAVIDWINTERS HILT STEPHENAKESON MARK AVERCOUTERE WENONAH A
    • HAUSSLER DAVIDWINTERS-HILT STEPHENAKESON MARK AVERCOUTERE WENONAH A
    • C12Q1/68G01N27/04
    • G01N33/48721C12Q1/6825C12Q1/6827Y10S435/975C12Q2565/631C12Q2565/607
    • Methods and devices are provided for characterizing a duplex nucleic acid, e.g., a duplex DNA molecule. In the subject methods, a fluid conducting medium that includes a duplex nucleic acid molecule is contacted with a nanopore under the influence of an applied electric field and the resulting changes in current through the nanopore caused by the duplex nucleic acid molecule are monitored. The observed changes in current through the nanopore are then employed as a set of data values to characterize the duplex nucleic acid, where the set of data values may be employed in raw form or manipulated, e.g., into a current blockage profile. Also provided are nanopore devices for practicing the subject methods, where the subject nanopore devices are characterized by the presence of an algorithm which directs a processing means to employ monitored changes in current through a nanopore to characterize a duplex nucleic acide molecule responsible for the current changes. The subject methods and devices find use in a variety of applications, including, among other applications, the identification of an analyte duplex DNA molecule in a sample, the specific base sequence at a single nucleotide polymorphism (SNP), and the sequencing of duplex DNA molecules.
    • 提供用于表征双链体核酸例如双链体DNA分子的方法和装置。 在本主题方法中,包含双链体核酸分子的流体传导介质在施加的电场的影响下与纳米孔接触,并且监测由双链体核酸分子引起的通过纳米孔的电流的变化。 观察到的通过纳米孔的电流的变化然后被用作一组数据值以表征双链体核酸,其中该组数据值可以以原始形式使用或被操纵,例如进入当前阻塞曲线。 还提供了用于实施本发明方法的纳米孔装置,其中本发明的纳米孔装置的特征在于存在一种算法,其指导处理装置利用监测的通过纳米孔的电流的变化来表征负责当前变化的双相核酸分子 。 主题方法和装置可用于各种应用,包括除了其他应用之外,样品中分析物双链DNA分子的鉴定,单核苷酸多态性(SNP)的特异碱基序列和双链体DNA的测序 分子。