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人细胞核诱导凋亡因子1在大肠杆菌中的表达、纯化及多克隆抗体制备 被引量:3

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摘要 目的:构建人核凋亡诱导因子1(NAIF1)原核表达质粒,在大肠杆菌中表达及纯化NAIF1融合蛋白,制备兔抗NAIF1多克隆抗体,并对其特性进行初步鉴定。方法:PCR法获得人NAIF1序列并将其克隆到原核表达载体pET-32a中,重组表达质粒在大肠杆菌BL21(DE3)中诱导表达蛋白,经变性、Ni+柱亲和纯化、复性后得到纯化的重组人NAIF1蛋白,免疫大耳白兔,制备兔抗人NAIF1多抗血清,以ELISA和Westernblot方法检测其效价和特异性。结果:成功获得了高纯度的人NAIF1重组蛋白和高效价的兔抗人NAIF1多抗血清,ELISA检测多抗效价达到1∶500000,Westernblot检测证明多抗特异性良好。结论:获得了高纯度的人NAIF1重组蛋白和兔抗人NAIF1多抗血清,为后续针对NAIF1基因功能的研究提供了重要实验材料。
出处 《细胞与分子免疫学杂志》 CAS CSCD 北大核心 2010年第1期56-58,共3页 Chinese Journal of Cellular and Molecular Immunology
基金 国家重大科学研究资助项目(2007CB914700)
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