摘要
为深入研究人Ⅰ型免疫缺陷病毒（ＨＩＶ—１）衣壳蛋白ｐ２４的结构与功能，制备抗Ｐ２４单克隆抗体及其诊断抗原，将编码ＨＩＶ－１ｐ２４蛋白的ｐ２４ｇａｇ基因片段，克隆到原核表达载体ｐＥＴ－１７ｂ的Ｔ７噬菌体启动子下游，构建成了重组表达质粒ｐＥＴ２４，并使ｐ２４ｇａｇ基因片段在大肠杆菌ＢＬ２１（ＤＥ３）中高效表达，其产物为３０ｋＤａ的ｓ１０－ｐ２４融合蛋白，表达量占菌体总蛋白的３８．４％。重组Ｐ２４蛋白均抗ｐ２４单克隆抗体及ＨＩＶ—１阳性血清发生特异性反应，具有较好的抗原性，对研究开发ＡＩＤＳ诊断试剂和基因工程疫苗具有重要意义。
In order to study the capsid protein (p24) of human immunodeficiency virus type 1(HIV-1),a plasmid vector pET24,containing the p24gaq gene fragment encoding the p24 protein under the control of the bacteriophage T7 promoter ,was constructed.The pET24 plasmidhighly expressed a 30kDa protein of s10-p24 spanning 284 amino acid residues.The total amount of the fusion protein was approximately 38.4% of the total celluar protein in Escherchia coli BL21(DE3).Westein blotting and,immunodot blotting indicated that the recombinain protein could be relognized by antip24 monoclonal antibody and HIV-1 positive sera respectively.It is significance for preparing specific antibody,and diagnostic usage.
出处
《中国人兽共患病杂志》
CSCD
北大核心
1999年第4期13-16,共4页
Chinese Journal of Zoonoses
基金
国家自然科学基金
国家杰出青年基金
