会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明授权
    • Oligonucleotide screening assay using DNA-altering agents and probes
with protectable labels
    • 使用具有可保护标签的DNA改变剂和探针的寡核苷酸筛选测定
    • US5824475A
    • 1998-10-20
    • US480884
    • 1995-06-07
    • Norman C. NelsonJorge Velarde, Jr.Daniel L. Kacian
    • Norman C. NelsonJorge Velarde, Jr.Daniel L. Kacian
    • C12N15/09C12Q1/68
    • C12Q1/6816Y10T436/143333
    • The invention features a method for assaying the ability of an oligonucleotide to form a hybrid with a target nucleic acid sequence. The featured assay comprises the following steps: (a) contacting a test sample containing a target nucleic acid sequence with an oligonucleotide; (b) treating the test sample with a duplex-altering agent; (c) contacting the treated test sample with a labeled probe under stringent hybridization conditions, wherein the probe can hybridize to non-altered target nucleic acid sequence such that the probe label is protected from subsequent chemical inactivation but the probe cannot hybridize to altered target nucleic acid sequence in a manner which would protect the probe label from subsequent chemical inactivation; and (d) measuring the hybridization of the probe to non-altered target nucleic acid sequence by measuring the amount of protected label. Also described is an assay to measure the ability of a ribozyme to cleave a target nucleic acid sequence, and an assay to measure the ability of an agent to alter nucleic acid.
    • 本发明的特征在于测定寡核苷酸与靶核酸序列形成杂交体的能力的方法。 特征测定包括以下步骤:(a)将含有靶核酸序列的测试样品与寡核苷酸接触; (b)用双相改变剂处理测试样品; (c)在严格杂交条件下使经处理的测试样品与标记的探针接触,其中所述探针可以与未改变的靶核酸序列杂交,使得探针标记物免受随后的化学失活的影响,但探针不能与改变的靶核酸杂交 酸序列,以保护探针标签免受随后的化学灭活; 和(d)通过测量受保护标记的量来测量探针与未改变的靶核酸序列的杂交。 还描述了测量核酶切割靶核酸序列的能力的测定法,以及测定试剂改变核酸能力的测定法。
    • 10. 发明授权
    • Homogeneous protection assay
    • 均质保护试验
    • US5639604A
    • 1997-06-17
    • US161706
    • 1993-12-03
    • Lyle J. Arnold, Jr.Norman C. Nelson
    • Lyle J. Arnold, Jr.Norman C. Nelson
    • C12Q1/68G01N33/53G01N33/532G01N33/533G01N33/542G01N33/58C07H21/04C12Q1/00
    • G01N33/58C12Q1/6816C12Q1/6823G01N33/5306G01N33/532G01N33/533G01N33/542
    • Improved homogenous diagnostic assay methods and labels for detecting an analyte in a medium when the analyte is a member of a specific binding pair. The methods and labels provide procedures for reducing background and increasing sensitivity. The binding partner of the analyte is labeled with a substance, the stability of which detectably changes whenever said analyte is bound as a member of the specific binding pair. In a closely related system, the analyte is labeled with a substance susceptible to differential degradation depending on whether or not the analyte is bound as a member of its specific binding pair. After incubation and selective degradation or chemical or biochemical alteration, the amount of analyte bound is detected by measuring either the stability change or the extent of degradation of the label. In a particular system, chemiluminescent acridinium ester labeled probes are used in a homogenous hybridization assay format for sensitively detecting the presence of complement any target polynucleotide sequences.
    • 当分析物是特异性结合对的成员时,改进的同源诊断测定方法和用于检测培养基中分析物的标记。 方法和标签提供了降低背景和提高灵敏度的程序。 分析物的结合配偶体用物质标记,当所述分析物作为特异性结合对的成员结合时,其稳定性可检测地改变。 在紧密相关的系统中,根据分析物是否作为其特异性结合对的成员结合,分析物被易受差异降解敏感的物质标记。 孵育和选择性降解或化学或生物化学改变后,通过测量标签的稳定性变化或降解程度来检测分析物的结合量。 在特定系统中,化学发光的吖啶酯标记的探针以均质杂交测定形式使用,以敏感地检测补体存在任何靶多核苷酸序列。