The RGD motif in VP31 of white spot syndrome virus is involved in cell adhesion

The RGD motif in VP31 of white spot syndrome virus is involved in cell adhesion Two WSSV envelope proteins, VP31 and VP33, contain a conserved Arg-Gly-Asp (RGD) sequence. In order to investigate the role of the RGD motif, wild-type and RGD-mutated VP31 and VP33 were recombinantly expressed in E. coli . The cell adhesion ability of the proteins was investigated in crayfish haemocytes using a fluorescence assay. The results showed that recombinant wild-type VP31 and VP33 had cell adhesion activity, and the RGD motif in VP31 was required for cell adhesion, which could be inhibited by an RGDT peptide. In contrast, the interaction of VP33 with cells did not require the RGD motif. These data indicate that the RGD motif plays an important role in the interaction between VP31 and host cells. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

The RGD motif in VP31 of white spot syndrome virus is involved in cell adhesion

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Publisher
Springer Vienna
Copyright
Copyright © 2011 by Springer-Verlag
Subject
Biomedicine; Infectious Diseases; Medical Microbiology; Virology
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s00705-011-0984-1
Publisher site
See Article on Publisher Site

Abstract

Two WSSV envelope proteins, VP31 and VP33, contain a conserved Arg-Gly-Asp (RGD) sequence. In order to investigate the role of the RGD motif, wild-type and RGD-mutated VP31 and VP33 were recombinantly expressed in E. coli . The cell adhesion ability of the proteins was investigated in crayfish haemocytes using a fluorescence assay. The results showed that recombinant wild-type VP31 and VP33 had cell adhesion activity, and the RGD motif in VP31 was required for cell adhesion, which could be inhibited by an RGDT peptide. In contrast, the interaction of VP33 with cells did not require the RGD motif. These data indicate that the RGD motif plays an important role in the interaction between VP31 and host cells.

Journal

Archives of VirologySpringer Journals

Published: Aug 1, 2011

References

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