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. 1983 Sep 24;11(18):6399–6408. doi: 10.1093/nar/11.18.6399

Nucleotide sequence of reovirus genome segment S3, encoding non-structural protein sigma NS.

M A Richardson, Y Furuichi
PMCID: PMC326381  PMID: 6312421

Abstract

This report describes the complete nucleotide sequence of human reovirus (Dearing strain) genome segment S3. Previous studies indicated that this RNA encodes the major non-structural viral polypeptide sigma NS, a protein that binds ssRNAs (Huisman & Joklik, Virology 70, 411-424, 1976) and has a poly(C)-dependent poly(G) polymerase activity (Gomatos et al., J. Virol. 39, 115-124, 1981). The genome segment consists of 1,198 nucleotides and possesses an open reading frame that extends 366 codons from the first AUG triplet (residues 28-30). There is no significant sequence homology between the plus strand of genome segment S3 and that of genome segment S2 determined previously (Cashdollar et al., PNAS 79, 7644-7648, 1982). However, S3 RNA has significant dyad symmetry and regions that can potentially hybridize (delta G = -26 KCal/mole) with S2 RNA. From the predicted amino acid sequence a possible secondary structure for sigma NS protein was determined. Structural features of reovirus RNA and sigma NS are discussed in relation to their role(s) in viral genome assembly.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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