食品科学

• 生物工程 • 上一篇    下一篇

多效唑人工抗原的合成与鉴定

王晓芬1,鄢爱平2,谭 婷2,毛雪金3,刘俊俊1,郭 岚2,万益群1,2,*   

  1. 1.南昌大学化学学院,江西 南昌 330031;2.南昌大学分析测试中心,江西 南昌 330047;3.南昌大学 食品科学与技术国家重点实验室,江西 南昌 330047
  • 出版日期:2016-04-15 发布日期:2016-04-13

Synthesis and Identification of Stable Artificial Paclobutrazol Antigen

WANG Xiaofen1, YAN Aiping2, TAN Ting2, MAO Xuejin3, LIU Junjun1, GUO Lan2, WAN Yiqun1,2,*   

  1. 1. College of Chemistry, Nanchang University, Nanchang 330031, China; 2. Center of Analysis and Testing, Nanchang University, Nanchang 330047, China; 3. State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
  • Online:2016-04-15 Published:2016-04-13

摘要:

为合成新的、有效的多效唑人工抗原,采用琥珀酸酐法对多效唑小分子进行结构修饰,以获得含羧基的多效唑半抗原。将纯化后的半抗原分别与牛血清白蛋白和卵清蛋白经N-羟基琥珀酰亚胺活泼酯法偶联制备免疫原和包被原。采用质谱、红外光谱、核磁共振氢谱对多效唑半抗原的结构进行鉴定;采用紫外光谱及高性能基质辅助激光解吸电离-飞行时间质谱对偶联物的结构进行鉴定。结果显示成功合成出多效唑人工抗原,为其抗体的制备和免疫学方法的构建奠定了前期研究基础。

关键词: 多效唑, 半抗原, 人工抗原, 制备

Abstract:

In order to synthesize a novel and effective artificial paclobutrazol antigen, succinic anhydride method was used
to modify the structure of paclobutrazol. Paclobutrazol hapten (PAC-HS) with an active carboxyl group was obtained, and
conjugated separately with BSA (bovine serum albumin) and OVA (ovalbumin) by carbodiimide method. Immunogen
and coating antigen were obtained and designated as PAC-HS-BSA and PAC-HS-OVA, respectively. The hapten was
characterized by mass spectrometry, infrared spectroscopy and 1H nuclear magnetic resonance spectroscopy. Ultraviolet
spectrophotometry was applied to determine the artificial paclobutrazol antigen. The coupling ratios of the conjugates were
determined by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF/MS). The results
suggested that paclobutrazol antigen was successfully synthesized, which will greatly facilitate antibody production and
immunoassay development.

Key words: paclobutrazol, hapten, artificial antigen, preparation

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