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    • 23. 发明授权
    • Methods for screening proteins using DNA encoded chemical libraries as templates for enzyme catalysis
    • 使用DNA编码化学文库筛选蛋白质作为酶催化模板的方法
    • US09150853B2
    • 2015-10-06
    • US13799039
    • 2013-03-13
    • Gen9, Inc.
    • Michael E. HudsonJoseph Jacobson
    • C12N15/10
    • C12N15/1034C12N15/1037C12N15/1086
    • Disclosed are methods, compositions and devices for screening a protein library for proteins having a desired activity, such as capable of catalyzing the formation of a bond between two reactants. In an exemplary embodiments, a plurality of proteins are expressed in vitro from a plurality of nucleic acids, the plurality of proteins are exposed with two single stranded oligonucleotides having complementary sequences, each oligonucleotide having a reactant and a fluorophore, the fluorescence of the protein-reactant-oligonucleotide-fluorophore complexes is detected and the complexes showing detectable fluorescence energy transfer are isolated, thereby isolating proteins having the desired enzymatic activity.
    • 公开了用于筛选具有所需活性的蛋白质的蛋白质文库的方法,组合物和装置,例如能够催化两种反应物之间的键的形成。 在一个示例性实施方案中,多个蛋白质在体外从多个核酸表达,多个蛋白质用两个具有互补序列的单链寡核苷酸暴露,每个寡核苷酸具有反应物和荧光团,蛋白质 - 检测到反应物 - 寡核苷酸 - 荧光团复合物,并分离出显示可检测的荧光能量转移的复合物,从而分离具有所需酶活性的蛋白质。
    • 26. 发明申请
    • Methods and Apparatuses for Chip-Based DNA Error Reduction
    • 基于芯片的DNA错误减少的方法和设备
    • US20120028843A1
    • 2012-02-02
    • US13164045
    • 2011-06-20
    • Senthil RamuJoseph Jacobson
    • Senthil RamuJoseph Jacobson
    • C40B50/06C07H21/00C12P19/34
    • C12N15/1058C12Q1/6848C12Q2521/514C12Q2565/537
    • Methods and apparatus relate to reduction of sequence errors generated during synthesis of nucleic acids on a microarray chip. The error reduction can include synthesis of complementary stands (to template strands), using a short universal primer complementary to the template strands and polymerase. Heteroduplex can be formed be melting and re-annealing complementary stands and template strands. The heteroduplexes containing a mismatch can be recognized and cleaved by a mismatch endonuclease. The mismatch-containing cleaved heteroduplexes can be removed from the microarray chip using a global buffer exchange. The error free synthetic nucleic acids generated therefrom can be used for a variety of applications, including synthesis of biofuels and value-added pharmaceutical products.
    • 方法和装置涉及减少在微阵列芯片上的核酸合成期间产生的序列错误。 错误减少可以包括使用与模板链和聚合酶互补的短通用引物来合成互补基团(模板链)。 Heteroduplex可以形成为熔化和重新退火互补架和模板链。 含有不匹配的异源双链可以被不匹配的内切核酸酶识别和切割。 可以使用全局缓冲液交换从微阵列芯片去除包含错配的切割的异源双链体。 由此产生的无错误的合成核酸可用于各种应用,包括合成生物燃料和增值药物产品。