You Position: Home > Paper

Preparation of egg yolk immunoglobulin against recombinant neutrophil activating protein in Helicobacter pylori

( views:0, downloads:0 )
Author:
No author available
Journal Title:
WORLD CHINESE JOURNAL OF DIGESTOLOGY
Issue:
5
DOI:
10.3969/j.issn.1009-3079.2007.05.007
Key Word:
幽门螺杆菌;重组蛋白;中性粒细胞激活蛋白;蛋黄抗体

Abstract´╝Ü 目的:制备高效价的.抗Nap蛋黄抗体(IgY).方法:大量诱导、培养重组菌pQE30-NapA-DH5α获得重组蛋白Nap,经Ni2+-NTA树脂纯化后,Bradford法测定蛋白浓度.用纯化的Nap蛋白免疫鸡,水稀释结合氯仿有机沉淀法提取IgY.ELISA法测定抗体产生的时间-效价变化.将效价高的Nap-IgY用硫酸铵沉淀法纯化浓缩,间接ELISA法检测效价,Bradford法测定蛋白含量.Western blot检测制备的Nap-IgY的抗体活性.结果:Nap重组蛋白主要以包涵体形式表达,蛋白含量为0.37 g/L.免疫鸡的蛋黄提取物可与Nap发生特异性反应,IgY效价随免疫时间增加而升高,在110 d达最高效价.经纯化浓缩后,Nap-IgY的效价为1:12800,蛋白浓度为23.67 g/L.结论:成功制备了高浓度、高效价的Nap特异性IgY.

WanfangData CO.,Ltd All Rights Reserved
About WanfangData | Contact US
Healthcare Department, Fuxing Road NO.15, Haidian District Beijing, 100038 P.R.China
Tel:+86-010-58882616 Fax:+86-010-58882615 Email:yiyao@wanfangdata.com.cn