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J Virol. 1984 March; 49(3): 665-673

Characterization of temperature-sensitive mutants of simian rotavirus SA11: protein synthesis and morphogenesis.

ABSTRACT

The synthesis of viral polypeptides, distribution of viral antigens, and morphogenesis of viral structures have been examined in cells infected with temperature-sensitive (ts) mutants of SA11 representing 10 recombination groups. At the permissive temperature (31 degrees C) the synthesis of viral polypeptides and the distribution of viral antigens did not differ significantly from those of the wild type. At the nonpermissive temperature (39 degrees C) some mutants (tsB, -C, -E, -F, and -G) synthesized significantly smaller amounts of viral polypeptides and had a very diffuse distribution of viral antigen. Several of the mutants synthesized one or more electrophoretically aberrant polypeptide species at both 31 and 39 degrees C. All of the mutants, except tsF, assembled morphogenetic intermediates at 39 degrees C. Aberrant intermediates were assembled in all mutants at 31 and 39 degrees C. No specific morphogenic defect could be associated with any of the ts mutants.

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