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A monoclonal antibody against PrM/M protein of Japanese encephalitis virus
1State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, P.R. China.
Abstract:
Japanese encephalitis virus (JEV) is a major public health threat in the Asia-Pacific region. The pre-membrane (PrM) protein of Japanese encephalitis virus is cleaved during maturation by the cellular protease into the structural protein M and a pr-segment. Here, we describe a procedure to generate monoclonal antibody (MAb) against JEV PrM/M protein and investigate its characteristics. Western blot analysis showed that the MAbs produced in this study were against JEV PrM/M specifically. Indirect immunofluorescence assay demonstrated that they could recognize native PrM/M protein in JEV-infected BHK-21 cells. Preliminary studies identified the epitope of the MAb with a set of synthesized overlapping peptides covering the whole length of PrM protein of JEV. The MAbs reported here may provide valuable tools for the further exploration of biological properties and functions of PrM/M protein and may also be developed for potential clinical applications.
Insights
Researchers developed new monoclonal antibodies (MAbs) targeting the Japanese encephalitis virus (JEV) PrM/M protein. These MAbs specifically recognize the JEV PrM/M protein, offering potential for diagnostic and therapeutic applications against this public health threat.
Area of Science:
- Virology
- Immunology
- Biotechnology
Background:
- Japanese encephalitis virus (JEV) poses a significant public health risk in the Asia-Pacific.
- The JEV pre-membrane (PrM) protein undergoes cleavage into M protein and a pr-segment during viral maturation.
Purpose of the Study:
- To generate and characterize monoclonal antibodies (MAbs) against the JEV PrM/M protein.
- To evaluate the specificity and recognition capabilities of the developed MAbs.
Main Methods:
- Production of MAbs against JEV PrM/M protein.
- Western blot analysis for MAb specificity.
- Indirect immunofluorescence assay for native protein recognition.
- Epitope mapping using synthesized overlapping peptides.
Main Results:
- Generated MAbs demonstrated specific binding to JEV PrM/M protein via Western blot.
- MAbs successfully recognized native PrM/M protein in JEV-infected cells using immunofluorescence.
- Preliminary epitope mapping identified specific binding sites on the PrM protein.
Conclusions:
- The developed MAbs are specific tools for detecting JEV PrM/M protein.
- These MAbs can aid in studying JEV PrM/M protein functions.
- Potential for clinical applications, including diagnostics and therapeutics, exists for these novel MAbs.
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