IL-21 production in prokaryotic hosts
    1.
    发明授权
    IL-21 production in prokaryotic hosts 有权
    原核生物中的IL-21产生

    公开(公告)号:US07250274B2

    公开(公告)日:2007-07-31

    申请号:US10735149

    申请日:2003-12-12

    IPC分类号: C12P21/02

    CPC分类号: C07K14/54

    摘要: The expression vectors and methods using an E. coli expression system for the large scale production of IL-21 are described. The vectors utilize the IL-21 coding sequence with specific changes in nucleotides in order to optimize codons and mRNA secondary structure for translation in E. coli. Using the expression vectors, the IL-21 gene was produced in E. coli to a level of greater than 1 g/L in fed batch fermentation. Also included are OmpT deficient E. coli strains transformed with an IL-21 expression vector.

    摘要翻译: 描述了用于大规模生产IL-21的大肠杆菌表达系统的表达载体和方法。 载体利用具有核苷酸特异性变化的IL-21编码序列,以优化用于大肠杆菌翻译的密码子和mRNA二级结构。 使用表达载体,在补料分批发酵中,在大肠杆菌中产生IL-21基因至大于1g / L的水平。 还包括用IL-21表达载体转化的OmpT缺陷型大肠杆菌菌株。