Identification of B-cell epitopes on the betanodavirus capsid protein |
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| Authors: | Costa J Z Adams A Bron J E Thompson K D Starkey W G Richards R H |
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| Institution: | Institute of Aquaculture, University of Stirling, Stirling, UK. janina.costa@stir.ac.uk |
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| Abstract: | The pepscan procedure was used to identify betanodavirus B-cell epitopes recognized by neutralizing mouse monoclonal antibodies (MAbs) and serum samples obtained from sea bass, Dicentrarchus labrax, naturally infected with betanodavirus. Pepscan was performed with a panel of thirty-four 12-mer synthetic peptides that mimicked the entire betanodavirus capsid protein. Sea bass serum samples reacted strongly with three regions of the capsid protein comprising amino acid residues 1-32, 91-162 and 181-212. The latter region was also recognized by neutralizing MAbs and coincided with a region of high antigenic propensity identified by an antigen prediction algorithm. These data suggest that a region of the betanodavirus capsid protein spanning amino acid residues 181-212 may represent a neutralization domain that could potentially be used to inform the development of nodavirus vaccines and immunodiagnostic reagents. |
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| Keywords: | betanodavirus epitope mapping luminex monoclonal antibodies pepscan xMAP technology |
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