Expression and purification of recombinant soluble tissue factor
    1.
    发明授权
    Expression and purification of recombinant soluble tissue factor 失效
    表达和纯化重组可溶性组织因子

    公开(公告)号:US5298599A

    公开(公告)日:1994-03-29

    申请号:US816679

    申请日:1992-01-03

    摘要: A method is disclosed to make any protein in a form that can be isolated rapidly from a solution using a specific monoclonal antibody designated "HPC-4". It has now been determined that it is possible to form a fusion protein of the epitope with a protein to be isolated, and isolate the protein using HPC-4-based affinity chromatography. In the preferred embodiment, a specific protease cleavage site is inserted between the epitope and the protein so that the epitope can be easily removed from the isolated protein. In an example, a functionally active soluble tissue factor including the twelve amino acid epitope recognized in combination with calcium by HPC-4 and a factor Xa cleavage site was expressed from a vector inserted into a procaryotic expression system. The recombinant tissue factor can be rapidly isolated in a single chromatographic step using the HPC-4 monoclonal antibody immobilized on a suitable substrate. Once isolated, the Protein C epitope is removed by cleavage with factor Xa, leaving the functionally active, soluble tissue factor.

    摘要翻译: 公开了一种制备任何蛋白质形式的蛋白质,其可以使用指定为“HPC-4”的特异性单克隆抗体从溶液中快速分离。 现在已经确定可以形成表位与待分离的蛋白质的融合蛋白,并使用基于HPC-4的亲和层析分离蛋白质。 在优选的实施方案中,特异性蛋白酶切割位点插入在表位和蛋白质之间,使得表位可以容易地从分离的蛋白质中去除。 在一个实例中,从插入到原核表达系统中的载体表达包括通过HPC-4与钙结合识别的十二个氨基酸表位和因子Xa切割位点的功能活性可溶性组织因子。 使用固定在合适底物上的HPC-4单克隆抗体,可以在单个色谱步骤中快速分离重组组织因子。 一旦分离,通过用因子Xa切割除去蛋白C表位,留下功能活性的可溶性组织因子。

    Calcium binding recombinant antibody against protein C
    2.
    发明授权
    Calcium binding recombinant antibody against protein C 失效
    钙蛋白C结合重组抗体

    公开(公告)号:US07247453B1

    公开(公告)日:2007-07-24

    申请号:US08259321

    申请日:1994-06-10

    CPC分类号: C07K16/40 C07K2317/55

    摘要: A Ca2+ dependent recombinant antibody that specifically binds to a specific twelve peptide sequence (E D Q V D P R L I D G K) in the activation region of the Protein C has been constructed. The antibody does not bind to Activated Protein C and can be used to inhibit activation of Protein C by thrombin-thrombomodulin, in purification of Protein C, and in treatment of tumors.

    摘要翻译: 已经构建了在蛋白C的活化区域中特异性结合特异性十二肽序列(E D Q V D P R L I D G K)的Ca 2+ 2 + >重组抗体。 抗体不结合活化蛋白C,可用于通过凝血酶 - 血栓调节蛋白,蛋白C的纯化和肿瘤的治疗来抑制蛋白C的活化。

    METHODS AND COMPOSITIONS FOR ACTIVATED PROTEIN C WITH REDUCED ANTI-COAGULANT PROPERTIES
    3.
    发明申请
    METHODS AND COMPOSITIONS FOR ACTIVATED PROTEIN C WITH REDUCED ANTI-COAGULANT PROPERTIES 有权
    活性蛋白C与降低抗凝血性质的方法和组合物

    公开(公告)号:US20080058265A1

    公开(公告)日:2008-03-06

    申请号:US11848080

    申请日:2007-08-30

    摘要: This invention relates to a novel form of protein C or activated protein C. More specifically, the invention is directed to a variant of protein C that is activated at a higher rate than wild-type or other variants and produces an activated protein C with reduced anticoagulant properties while retaining the protective anti-inflammatory and anti-apoptotic properties of wild-type activated protein C. This novel APC variant will be beneficial for treating inflammatory and apoptotic disorders with a reduced risk for bleeding.

    摘要翻译: 本发明涉及蛋白C或活化蛋白C的新形式。更具体地,本发明涉及以比野生型或其他变体更高的速率活化的蛋白C的变体,并产生具有降低的活化蛋白C 同时保留野生型活化蛋白C的保护性抗炎和抗凋亡特性。这种新的APC变体将有益于治疗具有降低的出血风险的炎症和凋亡障碍。

    Antithrombin H-helix mutants
    4.
    发明授权
    Antithrombin H-helix mutants 失效
    抗凝血酶H螺旋突变体

    公开(公告)号:US06794493B2

    公开(公告)日:2004-09-21

    申请号:US09828592

    申请日:2001-04-06

    IPC分类号: A61K3514

    CPC分类号: C07K14/8128 A61K38/57

    摘要: Mutant antithrombin modified to carry a more positive charge in the H-helix is provided. The modified antithrombin modulates the activities of thrombin, and extends the bioavailability of factor VIII.

    摘要翻译: 提供修饰为在H-螺旋中携带更多正电荷的突变抗凝血酶。 改性抗凝血酶调节凝血酶的活性,延长因子VIII的生物利用度。