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Updated: Aug 11, 2026

Detection of Neutralization-sensitive Epitopes in Antigens Displayed on Virus-Like Particle (VLP)-Based Vaccines Using a Capture Assay
Published on: February 10, 2022
Spying the neutralizing epitopes on E2 N-terminal by candidate epitope-vaccines against classical swine fever virus
1Laboratory of Immunology, Department of Biology, Tsinghua University, Protein Science Laboratory of the Ministry of Education, Beijing 100084, PR China. xndong00@mails.tsinghua.edu.cn
Abstract:
Our previous study proved that the N-terminal (aa693-711) of glycoprotein E2 contained sequential neutralizing epitopes. In this study, four candidate epitope-vaccines (EVs) were separately prepared and evaluated. Among them, epitope-vaccine EV-BC1a (BC1a: aa693-699) induced high level of epitope-specific neutralizing antibodies and exhibited similar protective capability with that induced by Chinese vaccine strain (C-strain). These results confirmed CKEDYRY (aa693-699) as a principal sequential neutralizing epitope on E2 N-terminal. Moreover, these findings also indicate that epitope-vaccine is a potent candidate strategy for marker vaccine against classical swine fever virus (CSFV).

