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    乔路, 夏杰, 陆兵, 徐殿胜. 重组人内皮抑素层析复性的相关研究[J]. 华东理工大学学报(自然科学版), 2008, (2): 203-207.
    引用本文: 乔路, 夏杰, 陆兵, 徐殿胜. 重组人内皮抑素层析复性的相关研究[J]. 华东理工大学学报(自然科学版), 2008, (2): 203-207.
    QIAO Lu, XIA Jie, LU Bing, XU Dian-sheng. On-Column Refolding and Purification of Recombinant Human Endostatin from Inclusion Bodies Expressed in Escherichia coli[J]. Journal of East China University of Science and Technology, 2008, (2): 203-207.
    Citation: QIAO Lu, XIA Jie, LU Bing, XU Dian-sheng. On-Column Refolding and Purification of Recombinant Human Endostatin from Inclusion Bodies Expressed in Escherichia coli[J]. Journal of East China University of Science and Technology, 2008, (2): 203-207.

    重组人内皮抑素层析复性的相关研究

    On-Column Refolding and Purification of Recombinant Human Endostatin from Inclusion Bodies Expressed in Escherichia coli

    • 摘要: 研究了由大肠杆菌表达的重组人内皮抑素(Recombinant human endostatin,rhES)的复性、纯化过程.比较先层析复性后纯化(工艺1)和先纯化后层析复性(工艺2)两种工艺的结果表明:工艺1所得rhES的收率和活性回收率分别为64.44%和213.19%,与工艺2相比分别提高8.70%和33.04%.工艺1中,研究了3种凝胶过滤柱复性及复性pH和上样蛋白浓度对复性的影响,并优化相关工艺.结果表明:在pH9.0,rhES浓度3.91 mg/mL的条件下,采用双梯度凝胶过滤Sephacryl S-100 HR进行层析复性,Sephadex G-25脱盐后,用SP Sepharose FF阳离子交换吸附纯化,获得活性回收率为213.19%,HPLC纯度为97.07%的rhES,其IC50为1.58 ug/mL.

       

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