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人胰岛素MIP融合蛋白在大肠杆菌中表达条件的优化

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摘要 MIP即人胰岛素B27赖氨酸去三肽胰岛素(B27K-DTr I)的前体。B27K-DTr I是一种新型单体速效胰岛素类似物,其单体性质好,生物活性高,是潜在的速效人胰岛素药物。将构建好的重组质粒pp SUMO-MIP转入大肠杆菌BL21(DE3)菌株,利用IPTG进行诱导表达。对MIP融合蛋白的诱导表达时间进行一系列的优化,结果表明:重组质粒在大肠杆菌BL21(DE3)中最优的表达条件为TB培养基、0.1 m M IPTG,15℃诱导过夜。通过表达条件的优化,每升菌液可获得30.1 mg的融合蛋白粗品。为进一步制备单体胰岛素B27K-DTr I打下了基础。
出处 《农业与技术》 2016年第6期54-55,79,共3页 Agriculture and Technology
基金 国家自然科学基金资助项目(项目编号:31300603) 上海高校特聘教授(东方学者)岗位计划资助项目(项目编号:2012-28) 中央高校基本科研业务费专项资金资助项目(项目编号:13D110522 15D110527)
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参考文献11

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