Identification of attenuating mutations on the reovirus type 3 S1 double-stranded RNA segment with a rapid sequencing technique

R. Bassel-Duby, D. R. Spriggs, K. Tyler, B. N. Fields

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Abstract

Reovirus type 3 variants with mutations in the major neutralization domain of the σ1 protein have attenuated neurovirulence and restricted neurotropism. We devised a variation of the rapid RNA sequencing technique to facilitate the analysis of double-stranded RNA. We sequenced the S1 double-stranded RNA segment, which encodes the σ1 protein, of five attenuated reovirus type 3 variants. Four of the variants have changes in codon 419, and a fifth variant has a change at codon 340, all of which resulted in amino acid substitutions in the σ1 protein. We identified two sites on the reovirus type 3 σ1 protein that play a critical role in neurovirulence.

Original languageEnglish (US)
Pages (from-to)64-67
Number of pages4
JournalJournal of Virology
Volume60
Issue number1
Publication statusPublished - 1986

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ASJC Scopus subject areas

  • Immunology

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