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Updated: Apr 19, 2026
In Vitro Analysis of Myd88-mediated Cellular Immune Response to West Nile Virus Mutant Strain Infection
Published on: November 27, 2014
Generation and characterization of a monoclonal antibody against prM protein of West Nile virus
Li-Ping Guo1, Hong Huo, Xiao-Lei Wang
1State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences , Harbin, Heilongjiang, People's Republic of China .
Abstract:
West Nile virus (WNV), which is an emerging pathogenic flavivirus with increasing distribution worldwide, is the cause of major human and animal health concerns. The pre-membrane (prM) protein of WNV is cleaved during maturation by the furin protease into the structural protein M and a pr-segment. In this study we generated and characterized a monoclonal antibody (MAb) against the WNV prM protein. Western blot analysis showed that the MAb reacted with WNV prM specifically. Immunohistochemistry assays demonstrated that the MAb recognized native prM protein in transfected BHK-21 cells. Preliminary studies were performed to identify the epitope recognized by the MAb using a set of synthesized overlapping peptides spanning the whole length of the prM protein. The MAb reported here may provide a valuable tool for the further exploration of the biological properties and functions of the prM protein and may also be developed for potential clinical applications.
Insights
Researchers developed a new monoclonal antibody (MAb) targeting the West Nile virus (WNV) pre-membrane (prM) protein. This WNV antibody specifically recognizes the native prM protein, offering a potential tool for diagnostics and research.
Area of Science:
- Virology
- Immunology
- Molecular Biology
Background:
- West Nile virus (WNV) is an emerging flavivirus posing significant global health risks to humans and animals.
- The WNV pre-membrane (prM) protein undergoes cleavage by furin protease during viral maturation, yielding the M protein and a pr-segment.
Purpose of the Study:
- To generate and characterize a monoclonal antibody (MAb) specific to the WNV prM protein.
- To assess the antibody's reactivity and specificity against WNV prM.
- To explore the potential utility of this MAb in WNV research and clinical applications.
Main Methods:
- Generation and characterization of a monoclonal antibody against WNV prM protein.
- Western blot analysis to confirm antibody specificity for WNV prM.
- Immunohistochemistry assays to detect native prM in transfected cells.
- Epitope mapping using overlapping synthetic peptides.
Main Results:
- The generated MAb demonstrated specific reactivity with WNV prM via Western blot.
- Immunohistochemistry confirmed the MAb's recognition of native prM protein in transfected BHK-21 cells.
- Preliminary epitope mapping was initiated using peptide analysis.
Conclusions:
- A novel monoclonal antibody targeting the WNV prM protein has been successfully generated and characterized.
- This MAb shows high specificity for WNV prM, recognizing both denatured and native forms.
- The antibody represents a valuable tool for studying WNV prM biology and may have future clinical applications.
