应用化学 ›› 1998, Vol. 0 ›› Issue (1): 53-55.

• 研究论文 • 上一篇    下一篇

疏水腔修饰法及高活力GPX抗体酶的研究──Ⅱ.半抗原及全抗原的制备和表征

马雪艳, 王琳, 丁兰, 赵大庆, 倪嘉缵   

  1. 中国科学院长春应用化学研究所稀土化学与物理开放实验室 长春 130022
  • 收稿日期:1997-03-25 修回日期:1997-08-14 出版日期:1998-02-10 发布日期:1998-02-10
  • 基金资助:
    中国科学院基础局重大资助;吉林省科委重点资助

Hydrophobic Pocket Modification and Glutathione Peroxidase Abzyme with High Activity-Ⅱ.Synthesis and Characterization of Haptens and Antigens

Ma Xueyan, Wang Lin, Ding Lan, Zhao Daqing, Ni Jiazuan   

  1. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022
  • Received:1997-03-25 Revised:1997-08-14 Published:1998-02-10 Online:1998-02-10

摘要: 自Jencks抗体酶的概念出现以来,已有80多种化学反应被证实可以用抗体来催化[1,2] 一般合成抗体酶的方法是通过选择合适的过渡态类似物来诱导抗体酶,这种方法产生的抗体 酶大部分活力很低,我们曾对3个具有谷胧甘肤(GSH)过氧化物酶(GPX)特性的含硒抗体酶 进行了报道[3,4],半抗原1,2,3是根据天然抗体酶活性中心的结构设计合成的,它们对GPX的 底物GSH具有不同程度的疏水修饰.

关键词: 谷胱甘肽过氧化物酶, 抗体酶, 疏水半抗原, 制备, 疏水腔修饰法

Abstract: The thiol group of glutathione (GSH) was protected by 2, 4-dinitrochlorobenzene(DNCB).The product GSH-S-DNP was reacted with 2-methyl-1-propanol and 3-methyl-1-butanol respectively to obtain hapten6 and 7.Their structures were determined by 400 MHz 1H NMR and IR.The two haptens were then covalently crosslinked with bovine serum albu-min(BSA) hy using glutaraldehyde as coupling agent to obtain antigen 6 and 7.The resultsof gel electrophoresis analysis gave the average molecular weight of 1.27 ?10-22 kg for eachantigen.The average connected ratio of BSA to hapten was 1: 12.Other UV and fluores-cence spectral properties of the antigens are reported.

Key words: glutathione peroxidase, abzyme, hydrophobic hapten, preparation, hydrophobic pocket modification