Sequence diversity in S1 genes and S1 translation products of 11 serotype 3 reovirus strains

Terence S. Dermody, Max L. Nibert, Rhonda Bassel-Duby, Bernard N. Fields

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

The S1 gene nucleotide sequences of 10 type 3 (T3) reovirus strains were determined and compared with the T3 prototype Dearing strain in order to study sequence diversity in strains of a single reovirus serotype and to learn more about structure-function relationships of the two S1 translation products, σ1 and σ1s. Analysis of phylogenetic trees constructed from variation in the σ 1-encoding S1 nucleotide sequences indicated that there is no pattern of S1 gene relatedness in these strains based on host species, geographic site, or date of isolation. This suggests that reovirus strains are transmitted rapidly between host species and that T3 strains with markedly different S1 sequences circulate simultaneously. Comparison of the deduced σ1 amino acid sequences of the 11 T3 strains was notable for the identification of conserved and variable regions of sequence that correlate with the proposed domain organization of σ1 (M. L. Nibert, T. S. Dermody, and B. N. Fields, J. Virol. 64:2976-2989, 1990). Repeat patterns of apolar residues thought to be important for σ1 structure were conserved in all strains examined. The deduced σ1s amino acid sequences of the strains were more heterogeneous than the σ1 sequences; however, a cluster of basic residues near the amino terminus of σ1s was conserved. This analysis has allowed us to investigate molecular epidemiology of T3 reovirus strains and to identify conserved and variable sequence motifs in the S1 translation products, σ1 and σ1s.

Original languageEnglish (US)
Pages (from-to)4842-4850
Number of pages9
JournalJournal of Virology
Volume64
Issue number10
StatePublished - 1990

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Mammalian orthoreovirus 3
Reoviridae
translation (genetics)
Amino Acid Sequence
serotypes
Molecular Epidemiology
Conserved Sequence
Genes
genes
amino acid sequences
Serogroup
sequence diversity
nucleotide sequences
molecular epidemiology
structure-activity relationships
prototypes

ASJC Scopus subject areas

  • Immunology

Cite this

Sequence diversity in S1 genes and S1 translation products of 11 serotype 3 reovirus strains. / Dermody, Terence S.; Nibert, Max L.; Bassel-Duby, Rhonda; Fields, Bernard N.

In: Journal of Virology, Vol. 64, No. 10, 1990, p. 4842-4850.

Research output: Contribution to journalArticle

Dermody, Terence S. ; Nibert, Max L. ; Bassel-Duby, Rhonda ; Fields, Bernard N. / Sequence diversity in S1 genes and S1 translation products of 11 serotype 3 reovirus strains. In: Journal of Virology. 1990 ; Vol. 64, No. 10. pp. 4842-4850.
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