期刊
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
卷 103, 期 9, 页码 3705-3714出版社
SPRINGER
DOI: 10.1007/s00253-019-09702-5
关键词
Porcine epidemic diarrhea virus; Monoclonal antibodies; Nucleocapsid protein
资金
- National Key RAMP
- D Program of China [2016YFD0500103]
- National Natural Science Foundation of China [31572498, 31702209]
- Elite Youth Program of CAAS
The variant strains of porcine epidemic diarrhea virus (PEDV) severely threaten the pig industry worldwide and cause up to 100% mortality in suckling piglets. It is critically important and urgent to develop tools for detection of PEDV infection. In this study, we developed six monoclonal antibodies (mAbs) targeting N protein of PEDV and analyzed their applications on enzyme-linked immunosorbent assay (ELISA), indirect immunofluorescence assay (IFA), western blot assay, and flow cytometry assay. The results demonstrated that all these six mAbs were IgG1 isotype and chain. Among these six mAbs, 3F12 recognizes a linear epitope (VAAVKDALKSLGI) while the other five mAbs recognize different conformational epitopes formed by a specific peptide fragment or the full length of N protein. The functional analysis showed that all these six mAbs were applicable to ELISA, western blot, IFA, and flow cytometry assay. In conclusion, we developed six mAbs against PEDV-N protein to facilitate the early detection of PEDV infection using ELISA, western blot, IFA, and flow cytometry.
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