Tetramerization of white spot syndrome virus envelope protein VP33 and its interaction with VP24

Tetramerization of white spot syndrome virus envelope protein VP33 and its interaction with VP24 VP33, also termed VP281, VP37 or VP36B, is a minor envelope protein of white spot syndrome virus (WSSV). Because of its low abundance and lack of a transmembrane domain, we hypothesized that VP33 is likely to be attached to the viral envelope by interaction with other envelope proteins. In this study, we employed far-western blotting and pull-down assays to demonstrate that VP33 interacts with itself, as well as with VP24, which is one of the four major viral envelope proteins. Moreover, a gel-filtration analysis was performed to show that this self-interaction led to the formation of stable VP33 tetramers. These results implied that VP33 tetramers were anchored to the viral envelope through interaction with VP24, suggesting that VP33 may participate in the formation of the WSSV envelope. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

Tetramerization of white spot syndrome virus envelope protein VP33 and its interaction with VP24

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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/s00705-010-0650-z
Publisher site
See Article on Publisher Site

Abstract

VP33, also termed VP281, VP37 or VP36B, is a minor envelope protein of white spot syndrome virus (WSSV). Because of its low abundance and lack of a transmembrane domain, we hypothesized that VP33 is likely to be attached to the viral envelope by interaction with other envelope proteins. In this study, we employed far-western blotting and pull-down assays to demonstrate that VP33 interacts with itself, as well as with VP24, which is one of the four major viral envelope proteins. Moreover, a gel-filtration analysis was performed to show that this self-interaction led to the formation of stable VP33 tetramers. These results implied that VP33 tetramers were anchored to the viral envelope through interaction with VP24, suggesting that VP33 may participate in the formation of the WSSV envelope.

Journal

Archives of VirologySpringer Journals

Published: Jun 1, 2010

References

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