生物技术通报 ›› 2013, Vol. 0 ›› Issue (4): 206-209.

• 研究报告 • 上一篇    下一篇

CP4-EPSPS 夹心ELISA 配对单克隆抗体的研制和生物学特性分析

李忠鹏1,2, 于寒松1, 胡耀辉1, 时圣凤2,3, 刘蕴慧2,4 段永杰1,2, 李小宇2, 王永志2, 李启云2   

  1. 1. 吉林农业大学,长春 130118 ;
    2. 吉林省农业科学院,长春 130033 ;
    3. 东北农业大学,哈尔滨 150030 ; 
    4. 哈尔滨师范大学,哈尔滨 150025
  • 收稿日期:2012-11-04 出版日期:2013-04-22 发布日期:2013-04-22
  • 作者简介:李忠鹏,男,硕士,研究方向:食品生物化学;E-mail :lizhongpeng1985@qq.com ;于寒松为并列第一作者
    通讯作者介绍:李启云,男,博士,研究员,研究方向:植物保护,E-mail :qyli1225@126.com ;王永志,男,博士,副研究员,研究方向:转基因植物检测,E-mail :yzwang@cjaas.com ;胡耀辉,男,教授,学士,研究方向:功能性食品与生物反应器,E-mail :huyaohui@vip.163.com
  • 基金资助:

    农业部转基因重大专项(2011ZX08004-004),中青年科技领军人才及优秀创新团队项目(20121812),吉林省农业微生物重点实验室平台建设项目(20122105)

Preparation and Analysis on Biological Characteristics of Monoclonal Antibodies Against CP4-EPSPS for Sandwich ELISA

Li Zhongpeng1,2, Yu Hansong1, Hu Yaohui1, Shi Shengfeng2,3, Liu Yunhui2,4 Duan Yongjie1,2, Li Xiaoyu2, Wang Yongzhi2, Li Qiyun2   

  1. 1. Jilin Agricultural University,Changchun 130118 ;
    2. Jilin Academy of Agricultural Sciences,Changchun 130033 ;
    3. Northeast Agricultural University,Harbin 150030 ;
    4. Harbin Normal University,Harbin 150025
  • Received:2012-11-04 Published:2013-04-22 Online:2013-04-22

摘要:

为获得能够用于夹心ELISA 检测的配对抗CP4-EPSPS 蛋白单克隆抗体,构建CP4-EPSPS 原核表达载体并转化大肠 杆菌Rossetta,获得高效表达。通过对可溶性蛋白纯化,获得了高纯度目的蛋白。以纯化后的CP4-EPSPS 蛋白作为抗原免疫BALB/ c 小鼠,经过细胞融合和筛选获得2 株抗CP4-EPSPS 蛋白单克隆抗体(1A5 和8A3)。经鉴定,这2 株抗体可以有效地识别高温 变性和天然CP4-EPSPS 蛋白;叠加ELISA 分析表明两株抗体识别的抗原表位不同,说明两株抗体能够用于夹心ELISA 检测CP4- EPSPS 蛋白。

关键词: CP4-EPSPS, 蛋白表达, 单克隆抗体, 夹心ELISA

Abstract:

In order to obtain specific monoclonal antibody against CP4-EPSPS protein for sandwich ELISA, the CP4-EPSPS gene was cloned into a bacterial expression vector and transformed into E.coli strain Rossetta. The target protein was expressed efficiently. After purification, the target protein was obtained. Purified CP4-EPSPS was used to immunize BALB/c mice and two monoclonal antibodies(1A5 and 8A3)were generated. These antibodies can recognize nature and denatured CP4-EPSPS. Overlay ELISA showed that they recognize different epitopes on CP4-EPSPS, so they can be used in sandwich ELISA to detect CP4-EPSPS.

Key words: CP4-EPSPS, Protein expression, Monoclonal antibody, Sandwich ELISA