Streptavidin mutants
    1.
    发明授权
    Streptavidin mutants 失效
    链霉亲和素突变体

    公开(公告)号:US6022951A

    公开(公告)日:2000-02-08

    申请号:US628540

    申请日:1996-04-10

    摘要: The present invention relates to streptavidin proteins and peptides having a altered physical properties such as an increased stability or increased or decreased affinity for binding biotin. The invention also relates to methods for the detection, identification, separation and isolation of targets using streptavidin proteins or peptides. Streptavidin with increased or reduced affinity allows for the use of the streptavidin-biotin coupling systems for detection and isolation systems wherein it is necessary to remove of one or the other of the binding partners. Such systems are useful for the purification of functional proteins and viable cells. The invention also relates to nucleic acids which encode these streptavidin proteins and peptides and to recombinant cells such as bacteria, yeast and mammalian cells which contain these nucleic acids.

    摘要翻译: 本发明涉及链霉抗生物素蛋白和具有改变的物理性质例如增加的稳定性或增加或降低的结合生物素的亲和力的肽。 本发明还涉及使用链霉亲和素蛋白或肽检测,鉴定,分离和分离靶的方法。 具有增加或降低亲和力的链霉亲和素允许使用链霉抗生物素蛋白 - 生物素偶联系统进行检测和分离系统,其中必须除去一种或另一种结合配偶体。 这样的系统可用于纯化功能性蛋白质和活细胞。 本发明还涉及编码这些链霉抗生物素蛋白和肽以及含有这些核酸的重组细胞如细菌,酵母和哺乳动物细胞的核酸。

    SUPRAMOLECULAR BIOCONJUGATES
    6.
    发明申请

    公开(公告)号:US20100255558A1

    公开(公告)日:2010-10-07

    申请号:US12435665

    申请日:2009-05-05

    IPC分类号: C07K17/00 C07K1/00 C12N9/96

    摘要: The invention relates to supramolecular bioconjugates and to methods for assembling and utilizing supramolecular bioconjugates. Supramolecular bioconjugates comprise a plurality of first nucleic acids and a plurality of mediators wherein each mediator comprises a second nucleic acid complementary to a sequence within said plurality of first nucleic acids. To assemble a supramolecular bioconjugate, one or more sets of bioreactive agents are coupled to the plurality of mediators, forming a plurality of bioreactive complexes. The plurality of bioreactive complexes are hybridized to the plurality of first nucleic acids to form the supramolecular bioconjugate. Bioconjugates can be used to detect and isolate targets, to screen samples for targets such as antigens, to treat patients with multiple agents or to diagnose disorders in the form of a kit.

    摘要翻译: 本发明涉及超分子生物缀合物和组分和利用超分子生物缀合物的方法。 超分子生物缀合物包含多个第一核酸和多个介体,其中每个介体包含与所述多个第一核酸内的序列互补的第二核酸。 为了组装超分子生物缀合物,将一组或多组生物反应剂偶联至多个介体,形成多个生物反应性复合物。 多个生物反应性复合物与多个第一核酸杂交以形成超分子生物缀合物。 生物共轭物可用于检测和分离靶标,筛选靶标如抗原的样品,以治疗患有多种药物的患者或以试剂盒的形式诊断疾病。

    Immuno-polymerase chain reaction system for antigen detection
    8.
    发明授权
    Immuno-polymerase chain reaction system for antigen detection 失效
    抗原检测免疫聚合酶链反应体系

    公开(公告)号:US5665539A

    公开(公告)日:1997-09-09

    申请号:US131301

    申请日:1993-10-04

    摘要: A novel system and method for sensitive antigen detection. The system utilizes immuno-polymerase chain reaction in which a specific biotinylated nucleic acid molecule is used as the marker. The biotinylated marker is attached to antigen-antibody complex through a streptavidin-protein A chimeric protein that possesses tight and specific binding affinity both for biotin and immunoglobulin G. A segment of the attached biotinylated marker is amplified by polymerase chain reactions with appropriate primers and the polymerase chain reaction products are detected by agarose gel electrophoresis. The method can detect any antigen and has a greater sensitivity than any existing antigen detection system.

    摘要翻译: 一种用于敏感抗原检测的新型系统和方法。 该系统利用免疫聚合酶链反应,其中使用特异性生物素化的核酸分子作为标记。 生物素标记通过链霉抗生物素蛋白 - 蛋白A嵌合蛋白连接到抗原 - 抗体复合物上,该嵌合蛋白对于生物素和免疫球蛋白G都具有紧密和特异性的结合亲和力。通过与适当引物的聚合酶链反应扩增连接的生物素标记的片段,并且 通过琼脂糖凝胶电泳检测聚合酶链反应产物。 该方法可以检测任何抗原并且比任何现有的抗原检测系统具有更高的灵敏度。

    Nucleic acid directed immobilization arrays and methods of assembly
    10.
    发明授权
    Nucleic acid directed immobilization arrays and methods of assembly 失效
    核酸定向固定阵列和组装方法

    公开(公告)号:US07569341B2

    公开(公告)日:2009-08-04

    申请号:US08967269

    申请日:1997-11-07

    IPC分类号: C12Q1/68

    摘要: The invention relates to supramolecular bioconjugates and to methods for assembling and utilizing supramolecular bioconjugates. Supramolecular bioconjugates comprise a plurality of first nucleic acids and a plurality of mediators wherein each mediator comprises a second nucleic acid complementary to a sequence within said plurality of first nucleic acids. To assemble a supramolecular bioconjugate, one or more sets of bioreactive agents are coupled to the plurality of mediators, forming a plurality of bioreactive complexes The plurality of bioreactive complexes are hybridized to the plurality of first nucleic acids to form the supramolecular bioconjugate. Bioconjugates can be used to detect and isolate targets, to screen samples for targets such as antigens, to treat patients with multiple agents or to diagnose disorders in the form of a kit.

    摘要翻译: 本发明涉及超分子生物缀合物和组分和利用超分子生物缀合物的方法。 超分子生物缀合物包含多个第一核酸和多个介体,其中每个介体包含与所述多个第一核酸内的序列互补的第二核酸。 为了组装超分子生物缀合物,将一组或多组生物反应剂偶联到多个介体中,形成多个生物反应性复合物。多个生物反应性复合物与多个第一核酸杂交以形成超分子生物缀合物。 生物共轭物可用于检测和分离靶标,筛选靶标如抗原的样品,以治疗患有多种药物的患者或以试剂盒的形式诊断疾病。