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公开(公告)号:US09518095B2
公开(公告)日:2016-12-13
申请号:US14247097
申请日:2014-04-07
申请人: KUROS BIOSCIENCES AG
CPC分类号: C07K14/005 , A61K2039/5256 , A61K2039/5258 , C12N7/00 , C12N2795/00023 , C12N2795/00051 , C12N2795/10051 , C12N2795/10061 , C12N2795/18022 , C12N2795/18052
摘要: This invention provides a robust fermentation process for the expression of a capsid protein of a bacteriophage which is forming a VLP by self-assembly, wherein the process is scalable to a commercial production scale and wherein the expression rate of the capsid protein is controlled to obtain improved yield of soluble capsid protein. This is achieved by combining the advantages of fed-batch culture and of lactose induced expression systems with specific process parameters providing improved repression of the promoter during the growth phase and high plasmid retention throughout the process.
摘要翻译: 本发明提供了用于通过自组装形成VLP的噬菌体的衣壳蛋白的表达的鲁棒发酵方法,其中该方法可扩展到商业生产规模,并且其中控制衣壳蛋白的表达速率以获得 提高可溶性衣壳蛋白的产量。 这是通过将补料分批培养和乳糖诱导表达系统的优点与具体工艺参数相结合来实现的,其提供了在生长阶段改进的启动子抑制以及整个过程中的高质粒保留。