Novel monoclonal antibodies against Menangle virus nucleocapsid protein

Novel monoclonal antibodies against Menangle virus nucleocapsid protein Menangle virus (MenV) is a member of the family Paramyxoviridae isolated in Australia that causes a reproductive disease of pigs. There is a need for specific immunoassays for virus detection to facilitate the diagnosis of MenV infection. Three novel monoclonal antibodies (MAbs) of the IgG1 subtype were generated by immunizing mice with recombinant yeast-expressed MenV nucleocapsid (N) protein self-assembled to nucleocapsid-like structures. One MAb was cross-reactive with recombinant N protein of Tioman virus. The epitopes of MAbs were mapped using a series of truncated MenV N proteins lacking the 29–119 carboxy-terminal amino acid (aa) residues. The epitopes of two MAbs were mapped to aa 430–460 of the MenV N protein, whilst the epitope of one MAb was mapped to residues 460–490. All three MAbs specifically recognized MenV, as indicated by immunohistochemical staining of brain tissue isolated from a field case (a stillborn piglet) of MenV infection. The MAbs against MenV N protein may be a useful tool for immunohistological diagnosis of MenV infection. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals
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Publisher
Springer Vienna
Copyright
Copyright © 2010 by Springer-Verlag
Subject
Biomedicine; Infectious Diseases; Medical Microbiology ; Virology
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s00705-009-0543-1
Publisher site
See Article on Publisher Site

Abstract

Menangle virus (MenV) is a member of the family Paramyxoviridae isolated in Australia that causes a reproductive disease of pigs. There is a need for specific immunoassays for virus detection to facilitate the diagnosis of MenV infection. Three novel monoclonal antibodies (MAbs) of the IgG1 subtype were generated by immunizing mice with recombinant yeast-expressed MenV nucleocapsid (N) protein self-assembled to nucleocapsid-like structures. One MAb was cross-reactive with recombinant N protein of Tioman virus. The epitopes of MAbs were mapped using a series of truncated MenV N proteins lacking the 29–119 carboxy-terminal amino acid (aa) residues. The epitopes of two MAbs were mapped to aa 430–460 of the MenV N protein, whilst the epitope of one MAb was mapped to residues 460–490. All three MAbs specifically recognized MenV, as indicated by immunohistochemical staining of brain tissue isolated from a field case (a stillborn piglet) of MenV infection. The MAbs against MenV N protein may be a useful tool for immunohistological diagnosis of MenV infection.

Journal

Archives of VirologySpringer Journals

Published: Jan 1, 2010

References

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