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    • 8. 发明申请
    • PROCESS FOR PRODUCING HBV SURFACE PROTEINS
    • 生产HBV表面蛋白的方法
    • WO1995031558A1
    • 1995-11-23
    • PCT/US1995006061
    • 1995-05-12
    • MERCK & CO., INC.MARKUS, Henry, Z.SCHULTZ, Loren, D.SHAW, Alan, R.
    • MERCK & CO., INC.
    • C12N15/63
    • C07K14/005A61K39/00C12N15/81C12N2730/10122
    • In order to produce hepatitis B virus (HBV) surface proteins in the form of particles with substantially reduced entrapped carbohydrate content, DNA encoding the HBV surface proteins was expressed in a recombinant yeast strains which are deficient in their ability to glycosylate proteins and/or has mutations in protease genes. These yeast strains produce P24 with substantially reduced sub-P24 proteolytic breakdown products when compared with P24 produced in "wild-type" yeast cells. These particles are useful as a vaccine for both the active and passive treatment or prevention of disease and/or infection caused by HBV or other agents serologically related to HBV. The processes disclosed herein utilizing these strains of yeast more efficiently produce P24.
    • 为了产生具有显着降低的包含碳水化合物含量的颗粒形式的乙型肝炎病毒(HBV)表面蛋白质,编码HBV表面蛋白的DNA在重组酵母菌株中表达,所述重组酵母菌株的蛋白质糖基化和/或具有 蛋白酶基因突变。 当与“野生型”酵母细胞中产生的P24相比时,这些酵母菌株产生具有显着降低的亚P24蛋白水解分解产物的P24。 这些颗粒可用作活性和被动治疗或预防HBV或与HBV血清学相关的其他试剂引起的疾病和/或感染的疫苗。 利用这些酵母菌株本文公开的方法更有效地产生P24。