1887

Abstract

A protein of 110 kDa (termed VP110) from the envelope fraction of (WSSV) was identified by SDS-PAGE and mass spectrometry. The resulting amino acid sequence matched an open reading frame () containing an Arg–Gly–Asp (RGD) motif in the WSSV genome database. To validate the mass-spectrometry result, the C-terminal segment of the open reading frame was expressed in as a fusion protein, which was used to produce specific antibody. Analysis by Western blotting and immunoelectron microscopy demonstrated that VP110 was an envelope protein of WSSV. An interaction analysis was performed between VP110 and the host cells, using a fluorescence assay and a competitive-inhibition assay. The results showed that VP110 was capable of attaching to host cells and that adhesion could be inhibited by synthetic RGDT peptides, suggesting that the RGD motif in the VP110 sequence may play a role in WSSV infection.

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2006-07-01
2020-01-27
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