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    • 4. 发明申请
    • MAJOR OUTER MEMBRANE PROTEIN CD OF MORAXELLA
    • MORAXELLA主要外膜蛋白CD
    • WO1996012733A1
    • 1996-05-02
    • PCT/CA1995000604
    • 1995-10-23
    • CONNAUGHT LABORATORIES LIMITEDYANG, Yan-PingHARKNESS, Robin, E.MYERS, Lisa, E.McGUINNESS, UrsulaKLEIN, Michel, H.
    • CONNAUGHT LABORATORIES LIMITED
    • C07K14/22
    • C07K14/212A61K39/00
    • An isolated and purified non-denatured outer membrane protein CD which is that of or corresponds to that isolatable from a Moraxella strain, particularly M. catarrhalis, is isolated from a bacterial strain by fractionating a cell lysate formed by disrupting a cell mass of the bacterial strain by centrifugation to provide a pellet and a discard supernatant containing a large proportion of soluble bacterial proteins. The pellet is selectively extracted to remove the remaining soluble proteins, the membrane proteins other than CD and other contaminants such as lipopolysaccharide and phospholipids. The remaining CD-containing pellet is dispersed and solubilized and then fractionated by centrifugation to remove the remaining cell debris. The CD protein is useful in diagnostic applications and immunogenic compositions, particularly for in vivo administration to a host to confer protection against disease caused by a bacterial pathogen that produces CD protein or produces a protein capable of inducing antibodies in a host specifically reactive with CD protein.
    • 分离纯化的非变性外膜蛋白CD,其是与莫拉氏菌属菌株特别是卡他莫拉菌可分离的非变性外膜蛋白质CD,通过分离通过破坏细菌的细胞块而形成的细胞裂解物从细菌菌株中分离 通过离心以提供含有大部分可溶性细菌蛋白质的沉淀物和丢弃上清液。 选择性提取沉淀物以除去剩余的可溶性蛋白质,除CD以外的膜蛋白质和其它污染物如脂多糖和磷脂。 剩余的含有CD的颗粒被分散和溶解,然后通过离心分离分离以除去剩余的细胞碎片。 CD蛋白可用于诊断应用和免疫原性组合物,特别是用于体内施用宿主,以产生由产生CD蛋白的细菌病原体引起的疾病的保护,或产生能够在与CD蛋白特异性反应的宿主中诱导抗体的蛋白质 。