Abstract
Stable neutralization and protection escape variants of a virulent strain (Trinidad Donkey) of the VEE virus were selected by monoclonal antibodies (MAbs). Determination of nucleotide sequences of nine variants revealed a clustering of single mutations in four regions of the E1 and E2 glycoproteins. Involvement of amino acid residues 206 (site E1-1), 57 and 59 (site E2-2), 180, 182, 213, 214 and 216 (site E2-6) and 232 (site E2-3) in protective epitopes was demonstrated.
MeSH terms
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Amino Acid Sequence
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Animals
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Antibodies, Monoclonal
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Capsid / genetics
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Capsid / immunology*
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Chlorocebus aethiops
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Codon / genetics
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Encephalitis Virus, Venezuelan Equine / genetics
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Encephalitis Virus, Venezuelan Equine / immunology*
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Encephalitis Virus, Venezuelan Equine / pathogenicity*
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Epitopes / analysis*
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Genetic Variation
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Mice
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Molecular Sequence Data
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Neutralization Tests
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Point Mutation*
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Vero Cells
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Virulence
Substances
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Antibodies, Monoclonal
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Codon
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Epitopes