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首页> 外文期刊>Biomolecular engineering >Optimization of culture conditions for a synthetic gene expression in Escherichia coli using response surface methodology: the case of human interferon beta.
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Optimization of culture conditions for a synthetic gene expression in Escherichia coli using response surface methodology: the case of human interferon beta.

机译:使用响应面方法优化大肠杆菌中合成基因表达的培养条件:人干扰素β的情况。

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摘要

A human interferon beta (hINF-beta) synthetic gene was optimized and expressed in Escherichia coli BL21-SI using a vector with the T7 promoter. To determine the best culture conditions such as culture medium, temperature, cell density and inducer concentration, we used the response surface methodology and a Box-Behnken design to get the highest hINF-beta production. The maximum hINF-beta production of 61 mg l(-1) was attained using minimum medium and the following predicted optimal conditions: temperature of 32.5 degrees C, cell density of 0.64, and inducer concentration of 0.30 M NaCl. This is the first report showing the successful performance of the BL21-SI system in a minimum medium. The response surface methodology is effective for the optimization of recombinant protein production using synthetic genes.
机译:使用具有T7启动子的载体,优化了人干扰素beta(hINF-beta)合成基因并在大肠杆菌BL21-SI中表达。为了确定最佳的培养条件,例如培养基,温度,细胞密度和诱导剂浓度,我们使用了响应面方法和Box-Behnken设计来获得最高的hINF-beta产量。使用最小培养基和以下预测的最佳条件,可获得最大的hINF-beta产量61 mg l(-1):温度为32.5摄氏度,细胞密度为0.64,诱导剂浓度为0.30 M NaCl。这是第一份报告,显示了BL21-SI系统在最小介质中的成功性能。响应面方法对于使用合成基因优化重组蛋白生产非常有效。

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