Chem. J. Chinese Universities ›› 2020, Vol. 41 ›› Issue (7): 1552.doi: 10.7503/cjcu20200078

• Organic Chemistry • Previous Articles     Next Articles

Preparation and Application of Specificity Phosphohistidine Antibody

LI Rongqing1,2,LIU Jialu1,2,FAN Ruochen3,BAI Pengyang1,2,ZHANG Liying1,*(),QUAN Chunshan1,2,*()   

  1. 1. College of Life Science, Dalian 116600, China
    2. Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Dalian Minzu University, Dalian 116600, China
    3. College of Life Science, Dalian University of Technology, Dalian 116024, China
  • Received:2020-02-17 Online:2020-07-10 Published:2020-03-23
  • Contact: Liying ZHANG,Chunshan QUAN E-mail:zhangly@dlnu.edu.cn;mikyeken@dlnu.edu.cn
  • Supported by:
    † National Natural Science Foundation of China(21272031);National Natural Science Foundation of China(21372037);Natural Science Foundation of Liaoning Province, China(20180550977);Fundamental Research Funds for the Central Universities of China(wd01190)

Abstract:

A novel phosphorylated histidine analogue was synthesized using 4-iodopyrazole and diethyl phosphite as raw materials and characterized by nuclear magnetic resonance spectroscopy(NMR). It was used as hapten to prepare phosphohistidine antibody(Anti-pHis). Enzyme-linked immunosorbent assay, dot blot and western blot methods were used to detect the specificity and sensitivity of the Anti-pHis. The results showed that the Anti-pHis had excellent avidity and sensitivity for histidine phosphorylated protein, and the Anti-pHis was successfully applied to the detection of histidine phosphorylated protein in the lysate of microbial cells.

Key words: Hapten, Phosphohistidine antibody, Specificity, Avidity

CLC Number: 

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