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Epitope mapping of African swine fever virus (ASFV) structural protein p30
  • +7
  • yao zhang,
  • Aiping Wang,
  • Jingming Zhou,
  • Hongliang Liu,
  • Yumei Chen,
  • Peiyang Ding,
  • Xifang Zhu,
  • Chao Liang,
  • Yanhua Qi,
  • Gaiping Zhang
yao zhang
Zhengzhou University
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Aiping Wang
Zhengzhou University
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Jingming Zhou
Zhengzhou University
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Hongliang Liu
Zhengzhou University
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Yumei Chen
Zhengzhou University
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Peiyang Ding
Zhengzhou University
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Xifang Zhu
Zhengzhou University
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Chao Liang
Zhengzhou University
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Yanhua Qi
Zhengzhou University
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Gaiping Zhang
Zhengzhou University
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Abstract

Since African swine fever (ASF) was first reported in 1921, it has brought huge economic losses to the world pig industry. No vaccine or therapy is available. Rapid and effective diagnostics are key steps in managing ASF. We generated three monoclonal antibodies (mAbs) against the African swine fever virus (ASFV) phosphoprotein p30 and designated these as 7D2, 8C8 and 2F6. Epitope mapping revealed that mAb 7D2 recognized 26VFHAG SLYNW 35 of p30, and mAb 8C8 and 2F6 recognized 1MDFIL NISMK MEVIF KTDLR 20 of p30. Furthermore, epitope 1MDFIL NISMK MEVIF KTDLR 20 and 26VFHAG SLYNW 35 could be well recognized by ASFV-positive sera from natural infected pigs, suggesting that they were natural linear B-cell epitope. Conservation analysis indicated that epitope 1MDFIL NISMK MEVIF KTDLR 20 and 26VFHAG SLYNW 35 were highly conserved among the different strains of ASFV. This is the first research to characterize specific mAbs against p30 protein. These findings may facilitate further understanding the function of p30 protein and development of diagnostic tools.

Peer review status:IN REVISION

11 Oct 2021Submitted to Transboundary and Emerging Diseases
12 Oct 2021Assigned to Editor
12 Oct 2021Submission Checks Completed
13 Oct 2021Review(s) Completed, Editorial Evaluation Pending
13 Oct 2021Editorial Decision: Revise Major