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小鼠cdc25B蛋白特定序列的克隆及原核表达

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摘要 目的:构建小鼠cdc25B蛋白特定序列的原核表达载体,并诱导表达谷胱甘肽巯基转移酶(GST)融合蛋白。方法:采用PCR方法从小鼠cdc25B野生型及位点突变型蛋白编码序列中扩增出约360个碱基的片段,构建原核表达载体,转化大肠杆菌BL21(DE3)菌株,经IPTG诱导后进行融合蛋白表达。Western blot鉴定表达产物。结果:构建出带有GST标签的原核表达载体,在大肠杆菌BL21中表达出相对分子质量(Mr)为40000的重组蛋白质,经Westernblot鉴定,可与GST单克隆抗体结合,发生特异性反应。结论:利用原核表达系统成功表达出小鼠cdc25B蛋白特定序列的蛋白质,为进一步探讨与其他蛋白相互作用提供了基础。
出处 《细胞与分子免疫学杂志》 CAS CSCD 北大核心 2007年第11期1061-1063,共3页 Chinese Journal of Cellular and Molecular Immunology
基金 国家自然科学基金资助项目(30570945)
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参考文献9

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