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重组人白细胞介素15蛋白的制备和鉴定方法研究

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摘要 目的:在大肠杆菌中表达重组人白细胞介素15(rhIL-15),优化提取,纯化方法,以获得高纯度,具有较高生物学活性的人白细胞介素15。方法:将人白细胞介素15(rhIL-15)基因构建到大肠杆菌表达质粒中,采用BL21(DE3)菌株进行表达。通过蛋白提取,纯化,并利用Agilent 1220型高效液相色谱仪和MALDI串联质谱仪,测定了重组人白细胞介素15的纯度和分子量。结果:酶切和测序结果显示重组表达载体构建正确,获得的重组人白细胞介素15(rhIL-15)分子量为12.8kDa,与理论一致,蛋白纯度大于96%。结论:建立了一种rhIL-15蛋白的制备和鉴定方法,为科研和临床应用提供了必要的条件。
作者 郑燕平 黄晶
出处 《黑龙江医药科学》 2020年第5期119-121,共3页 Heilongjiang Medicine and Pharmacy
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