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Preparation of human Lrp polyclonal antibody
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- Author:
- No author available
- Journal Title:
- JOURNAL OF THE FOURTH MILITARY MEDICAL UNIVERSITY
- Issue:
- 9
- DOI:
- 10.3321/j.issn:1000-2790.2007.09.002
- Key Word:
- 脂多糖类;人脂多糖应答基因;人脂多糖应答蛋白;抗体制备
Abstract： 目的:制备人Lrp蛋白多克隆抗体. 方法:克隆全长lrp-cDNA编码序列并进行原核表达与鉴定. 用镍离子螯合柱(Ni-NTA)纯化原核表达的全长Lrp蛋白,获得纯度较高的目的蛋白. 用纯化后蛋白免疫新西兰大白兔制备多克隆抗体并吸附去除非特异性反应成分. 结果:Western印迹结果表明,纯化前后的抗血清在69 ku处均检测到目的蛋白条带,说明吸附纯化后的抗体可以与Lrp蛋白特异结合. 而纯化后抗体Western印迹结果目的条带只有一条,说明吸附纯化后得到高特异性抗血清,其免疫印迹的效价在10-6以上,有较高免疫印迹滴度. 结论:成功制备了高效价高特异性的兔抗人Lrp蛋白的多克隆抗体,为Lrp功能的进一步研究提供了重要的实验工具.
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