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    • 2. 发明申请
    • APTAMER INHIBITION OF THROMBUS FORMATION
    • APTAMER对血栓形成的抑制作用
    • WO2010019847A3
    • 2010-05-14
    • PCT/US2009053825
    • 2009-08-14
    • UNIV GEORGIA STATE RES FOUNDWANG BINGHELI MINYONGNI NANTINGLIU YIDAN
    • WANG BINGHELI MINYONGNI NANTINGLIU YIDAN
    • A61K48/00A61K31/7088A61K38/36A61P7/02C07H21/00
    • C12N15/115A61K31/7088C12N2310/16
    • Boronic acid-modified DNA-based aptamers can be selected to recognize fibrinogen through binding at a glycosylation site and thus are useful for probing the effect of glycosylation pattern changes on the ability for fibrinogen to mediate blood coagulation. In addition, the aptamers of the disclosure also have anticoagulation effects due to their binding to fibrinogen and its cleavage product fibrin. The present disclosure, therefore, encompasses methods for inhibiting fibrin coagulation with an aptamer capable of specifically binding to a glycosylation site of fibrinogen or fibrin. The disclosure further provides oligonucleotide aptamers comprising at least one nucleotide having a boronic acid thereon, where the aptamer is capable of selectively binding to a glycosylation site of fibrinogen, or the derivative thereof.
    • 可以选择硼酸修饰的基于DNA的适体通过在糖基化位点结合来识别纤维蛋白原,因此可用于探测糖基化模式改变对纤维蛋白原介导血液凝固的能力的影响。 此外,本公开的适体由于其与纤维蛋白原及其裂解产物纤维蛋白的结合而具有抗凝作用。 因此,本公开内容包括用能够特异性结合纤维蛋白原或纤维蛋白的糖基化位点的适体抑制纤维蛋白凝固的方法。 本公开还提供了包含至少一个在其上具有硼酸的核苷酸的寡核苷酸适体,其中适体能够选择性地结合纤维蛋白原或其衍生物的糖基化位点。
    • 3. 发明申请
    • NUCLEOTIDES AND APTAMERS CONTAINING BORONIC ACID GROUPS HAVING BIASED BINDING TO GLYCOSYLATED PROTEINS, AND USES THEREOF
    • 含有具有粘合蛋白质的蛋白质的硼酸组合的核苷酸和APTAMER及其用途
    • WO2009012363A2
    • 2009-01-22
    • PCT/US2008070288
    • 2008-07-17
    • UNIV GEORGIA STATE RES FOUNDWANG BINGHELI MINYONG
    • WANG BINGHELI MINYONG
    • C12N9/16A61K48/00C07H19/04C07H21/00C12Q1/68
    • C12N15/115C07H19/04C07H21/00C07H23/00C12N15/1048C12N2310/16C12N2310/33G01N33/68G01N33/6893G01N33/86
    • The present disclosure encompasses oligonucleotide aptamers selectively binding a target glycosylated polypeptide or protein, and having biased affinity for the glycan through a boronic acid linked to a nucleosidic base of a nucleotide(s). The disclosure further encompasses methods for isolating an aptamer(s) selectively binding a target glycosylated polypeptide, where, from a population of randomized oligonucleotides that have at least one nucleotide having a boronic acid label linked to a base, is selected a first subpopulation of aptamers binding to the target glycosylated polypeptide or protein. This subpopulation is then amplified without using boronic acid-modified TTP, and amplification products not binding to a target glycosylated polypeptide or protein are selected. The second subpopulation of aptamers is then amplified using boronic acid-modified TTP to provide a population of boronic acid-modified aptamers capable of selectively binding to a glycosylation site of a target polypeptide or protein. Other aspects of the disclosure encompass methods for the use of the modified aptamers to detect glycosylated species of a polypeptide or protein.
    • 本公开内容包括选择性结合靶糖基化多肽或蛋白质并且通过与核苷酸的核苷碱基连接的硼酸对聚糖具有偏向亲和力的寡核苷酸适体。 本公开还包括用于分离选择性结合靶糖基化多肽的适体的方法,其中从具有至少一个具有与碱基连接的硼酸标记的至少一个核苷酸的随机寡核苷酸群体中选择第一适配子亚群 与目标糖基化多肽或蛋白质结合。 然后在不使用硼酸修饰的TTP的情况下扩增该亚群,并且选择不与靶糖基化多肽或蛋白质结合的扩增产物。 然后使用硼酸修饰的TTP扩增适配体的第二亚群,以提供能够选择性结合靶多肽或蛋白质的糖基化位点的硼酸修饰的适配体群。 本公开的其它方面包括使用修饰的适体检测多肽或蛋白质的糖基化物种的方法。