An amino acid substitution at position 96 (Asp-->Asn) in the VP7 protein of G2 rotavirus strains is associated with failure to serotype using G2-specific monoclonal antibodies.
May explain G2 rotavirus serotyping failures; leaves open implications for human diagnostics and vaccines.
Rotavirus strains collected in the United Kingdom during the 1995-1996 season and genotyped as G2 by reverse transcription-PCR failed to serotype in enzyme-linked immunosorbent assays using three different G2-specific monoclonal antibodies. The deduced amino acid sequences of the antigenic regions A (amino acids 87 to 101), B (amino acids 142 to 152), and C (amino acids 208 to 221) of VP7 revealed that a substitution at position 96 (Asp-->Asn) correlated with the change in ability to serotype these G2 strains.
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Iturriza‐Gómara et al. (2001) studied this question.
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