生物技术通报 ›› 2013, Vol. 0 ›› Issue (3): 139-143.

• 研究报告 • 上一篇    下一篇

TRIP-1抗体的制作及应用

张宏玲,万骏,董一辰,曹威,张新胜,张锦勰,黄来强   

  1. 1. 清华大学生命科学学院,北京 100084 ;2. 清华大学深圳研究生院生命与健康学部 生物医药研究中心和基因与抗体治疗重点实验室,深圳 518055
  • 收稿日期:2012-08-24 修回日期:2013-03-21 出版日期:2013-03-20 发布日期:2013-03-21
  • 作者简介:张宏玲,女,博士研究生,研究方向:细胞生物学;E-mail :zhanghl08@mails.tsinghua.edu.cn
  • 基金资助:
    国家自然科学基金项目(30570960,30900749),深圳市重点实验室建设与提升计划

The Production and Application of TRIP-1 Antibody

Zhang Honglin,g Wan Jun, Dong Yichen, Cao Wei, Zhang Xinsheng, Zhang Jinxie, Huang Laiqiang   

  1. 1. School of Life Sciences,Tsinghua University,Beijing 100084;2. The Shenzhen Key Lab of Gene and Antibody Therapy,Center for Biotech & Biomedicine and Division of Life & Health Sciences,Graduate School at Shenzhen,Tsinghua University,Shenzhen 518055)
  • Received:2012-08-24 Revised:2013-03-21 Published:2013-03-20 Online:2013-03-21

摘要: 旨在制作TGF-β 二型受体结合蛋白TRIP-1 的抗体,以便推进对该蛋白在TGF-β 信号通路以及癌症发生发展中的功 能研究。首先克隆出人的TRIP-1 基因,构建其原核重组表达载体pET-His-TRIP-1,将其转化至大肠杆菌BL21(DE3)中,诱导获 得TRIP-1 蛋白,纯化后将其分别免疫新西兰大耳兔和昆明小鼠(KM),免疫4 次后取血清,并对抗血清进行效价和亲和力测定。 通过Western blot 和免疫荧光试验鉴定抗血清特异性。最后,利用proteinG 初步纯化抗血清。结果表明,通过重组表达获得抗原蛋 白,纯化后免疫新西兰大耳兔和昆明鼠可得到效价较高的抗TRIP-1 的多克隆抗体,在稀释倍数较高的情况下仍可以用于Western blot 和免疫荧光试验,且有非常好的特异性。

关键词: 原核表达纯化, TRIP-1, 蛋白, 动物免疫, 抗血清, 抗体鉴定

Abstract: To produce antibody against the TGF-β type II receptor binding protein, TRIP-1, contributing to study TRIP-1’s function in TGF-β signaling pathway and cancer development. Human’s TRIP-1 gene was cloned into the prokaryotic expression vector of pET-His, and then transformed into E. coli BL21 to induce TRIP-1 protein expression. Purified TRIP-1 protein was used to immunize New Zealand rabbits and Kunming mice(KM). The serum was removed and the titer and affinity was determined after immunization 4 times. The antiserum was highly purified by proteinG. Results indicated that the titer of the anti-serum from murine and rabbit are high enough for Western blot and immunofluorescence assay.

Key words: Prokaryotic expression and purification TRIP-1, Animal immunization, Anti-serum, Antibody identification