首页> 外国专利> Method of improving the expression of granulocyte colony stimulating factor by fed-batch culture that controls the specific growth rate of cells

Method of improving the expression of granulocyte colony stimulating factor by fed-batch culture that controls the specific growth rate of cells

机译:分批补料培养提高粒细胞集落刺激因子表达的方法,控制细胞的比生长速度

摘要

The present invention relates to a method for enhancing the expression of granulocyte colony stimulating factor (G-CSF) by fed-batch culture that controls the specific growth rate of cells. More specifically, the present invention is a recombinant Escherichia coli transformed with a G-CSF expression vector using L-arabinose operon of Salmonella strain, high concentration as an algebraic feeding method (exponential feeding) to control the growth rate of the cells Incubated with L-arabinose to induce the expression of G-CSF, followed by the addition of a fed-batch medium for constant feeding fed-batch, thereby increasing the expression of recombinant G-CSF from recombinant E. coli. It is about. The method of the present invention significantly improves the cell mass and the expression level of G-CSF and improves the plasmid in Escherichia coli at the later stage of fermentation, compared to conventional culture methods such as DO-stat fed-batch method and Do-stat fed-batch method after algebraic fed-batch culture. Keep stable until
机译:本发明涉及通过控制细胞的特定生长速率的补料分批培养来增强粒细胞集落刺激因子(G-CSF)的表达的方法。更具体地,本发明是使用沙门氏菌菌株的L-阿拉伯糖操纵子,以高浓度作为代数饲养方法(指数饲养)以G-CSF表达载体转化G-CSF表达载体以控制用L孵育的细胞的生长速率的重组大肠杆菌。 -阿拉伯糖诱导G-CSF的表达,然后添加补料分批培养基以恒定补料分批补料,从而增加了来自重组大肠杆菌的重组G-CSF的表达。关于。与常规培养方法例如DO-stat补料分批法和Do-stat法相比,本发明的方法在发酵后期显着改善了细胞质量和G-CSF的表达水平,并改善了大肠杆菌中的质粒。代数补料分批培养后的stat补料分批法。保持稳定直到

著录项

  • 公开/公告号KR19990042954A

    专利类型

  • 公开/公告日1999-06-15

    原文格式PDF

  • 申请/专利权人 허영섭;

    申请/专利号KR19970063916

  • 发明设计人 정경환;최승진;

    申请日1997-11-28

  • 分类号C12N1/00;

  • 国家 KR

  • 入库时间 2022-08-22 02:17:13

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