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    • 2. 发明授权
    • Method for extracting solutes from gel plugs
    • 从凝胶塞中提取溶质的方法
    • US5527680A
    • 1996-06-18
    • US404687
    • 1995-03-15
    • Huu M. TranDiana M. SmithLois B. Epstein
    • Huu M. TranDiana M. SmithLois B. Epstein
    • G01N27/447C12Q1/00B01D57/02B01D61/42C25B7/00
    • G01N27/44717
    • A flow-through receptacle is disclosed, one end of which is designed to hold multiple plugs of gel material, containing solutes such as macromolecules, excised from electrophoretic separations, and the other end of which is capable of insertion into a recipient matrix that lies between the plates of a slab gel enclosure in an electrophoresis apparatus. The receptacle is used to place the gel plugs, containing the macromolecules or solutes, into electrophoretic contact with a recipient matrix and allows for electrophoretic transfer of the solutes from the plugs into a single concentrated zone in the recipient matrix. The concentrated macromolecules or solutes can then be further processed in the recipient gel or excised and used for procedures requiring greater amounts and concentrations of the solute than are available in the original plugs.
    • 公开了一种流通容器,其一端被设计成容纳凝胶材料的多个塞子,其包含从电泳分离物切下的溶质如大分子,并且其另一端能够插入位于 电泳装置中的平板凝胶封套的板。 容器用于将含有大分子或溶质的凝胶塞与受体基质电泳接触,并允许将溶质从栓塞电泳转移到受体基质中的单个浓缩区域中。 然后可以将浓缩的大分子或溶质在接收器凝胶中进一步处理或切除,并用于需要比原始插塞中可获得更大量和浓度的溶质的步骤。
    • 3. 发明授权
    • Nucleic acid analysis techniques
    • 核酸分析技术
    • US06344316B1
    • 2002-02-05
    • US08882649
    • 1997-06-25
    • David J. LockhartMark CheeKevin GundersonLai ChaoqiangLisa WodickaMaureen T. CroninDanny LeeHuu M. TranHajime Matsuzaki
    • David J. LockhartMark CheeKevin GundersonLai ChaoqiangLisa WodickaMaureen T. CroninDanny LeeHuu M. TranHajime Matsuzaki
    • C12Q168
    • C07H19/052C07H19/12C07H21/00C12Q1/6809C12Q1/6837C12Q2600/156C40B40/00G06F19/20G06F19/22C12Q2525/161C12Q2565/501C12Q2561/125
    • The present invention provides a simplified method for identifying differences in nucleic acid abundances (e.g., expression levels) between two or more samples. The methods involve providing an array containing a large number (e.g. greater than 1,000) of arbitrarily selected different oligonucleotide probes where the sequence and location of each different probe is known. Nucleic acid samples (e.g. mRNA) from two or more samples are hybridized to the probe arrays and the pattern of hybridization is detected. Differences in the hybridization patterns between the samples indicates differences in expression of various genes between those samples. This invention also provides a method of end-labeling a nucleic acid. In one embodiment, the method involves providing a nucleic acid, providing a labeled oligonucleotide and then enzymatically ligating the oligonucleotide to the nucleic acid. Thus, for example, where the nucleic acid is an RNA, a labeled oligoribonucleotide can be ligated using an RNA ligase. In another embodiment, the end labeling can be accomplished by providing a nucleic acid, providing labeled nucleoside triphosphates, and attaching the nucleoside triphosphates to the nucleic acid using a terminal transferase.
    • 本发明提供用于鉴定两个或多个样品之间的核酸丰度差异(例如,表达水平)的简化方法。 所述方法包括提供包含大量(例如大于1,000个)任意选择的不同寡核苷酸探针的阵列,其中每个不同探针的序列和位置是已知的。 来自两个或更多个样品的核酸样品(例如mRNA)与探针阵列杂交,并检测杂交模式。 样本之间的杂交模式的差异表明这些样品之间各种基因的表达差异。 本发明还提供了一种终止标记核酸的方法。 在一个实施方案中,该方法包括提供核酸,提供标记的寡核苷酸,然后将寡核苷酸酶连接到核酸上。 因此,例如,当核酸是RNA时,可以使用RNA连接酶连接标记的寡核糖核苷酸。 在另一个实施方案中,末端标记可以通过提供核酸,提供标记的核苷三磷酸和使用末端转移酶将核苷三磷酸与核酸连接来实现。