Virus-like particles of calicivirus as epitope carriers

Virus-like particles of calicivirus as epitope carriers The VP60 of rabbit haemorrhagic disease virus (RHDV), when expressed in baculovirus, self-assembles into virus-like particles (VLP) which are antigenically and immunogenically indistinguishable from native virions. When the N-terminal 30 amino acid residues of VP60 were deleted and substituted by a well characterized six residue epitope from bluetongue virus capsid protein VP7 (Btag), the fusion protein retained its ability to self-assemble into VLPs. However, the size of these particles was only 27 nm, compared to 40 nm of VLPs derived from native VP60. The antigenicity of both VP60 and the Btag was retained as evident from ELISA and Western blot analyses. When Btag was fused at the C-terminus of VP60 without deletion, the fusion proteins formed VLPs of 40 nm in size and also retained their antigenicity, but the Btag antigenicity appeared weak at this fusion site. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

Virus-like particles of calicivirus as epitope carriers

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Publisher
Springer-Verlag
Copyright
Copyright © Wien by 1999 Springer-Verlag/
Subject
Legacy
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s007050050655
Publisher site
See Article on Publisher Site

Abstract

The VP60 of rabbit haemorrhagic disease virus (RHDV), when expressed in baculovirus, self-assembles into virus-like particles (VLP) which are antigenically and immunogenically indistinguishable from native virions. When the N-terminal 30 amino acid residues of VP60 were deleted and substituted by a well characterized six residue epitope from bluetongue virus capsid protein VP7 (Btag), the fusion protein retained its ability to self-assemble into VLPs. However, the size of these particles was only 27 nm, compared to 40 nm of VLPs derived from native VP60. The antigenicity of both VP60 and the Btag was retained as evident from ELISA and Western blot analyses. When Btag was fused at the C-terminus of VP60 without deletion, the fusion proteins formed VLPs of 40 nm in size and also retained their antigenicity, but the Btag antigenicity appeared weak at this fusion site.

Journal

Archives of VirologySpringer Journals

Published: Dec 1, 1999

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