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. 1980 Aug 11;8(15):3307–3318. doi: 10.1093/nar/8.15.3307

Nucleotide sequence of the putative recognition site for coat protein in the RNAs of alfalfa mosaic virus and tobacco streak virus.

E C Koper-Zwarthoff, J F Bol
PMCID: PMC324154  PMID: 6160470

Abstract

The sequence of the 3'-terminal 180 and 140 nucleotides of RNAs 2 and 3, respectively, of tobacco streak virus (TSV) was deduced by reverse transcription in the presence of a specific primer and chain terminators. Homology between the two RNAs was found to be restricted to a 3-terminal region of about 45 nucleotides. The data were compared with the sequence of the homologous region of 145 nucleotides occurring at the 3'-termini of the alfalfa mosaic virus (A1MV) RNAs, which contains the specific binding site for coat protein (Koper-Zwarthoff et al., Nucleic Acids Res. 7, 1887-1900 (1979); Houwing and Jaspars, Biochemistry 17, 2927-2933 (1978)). This was done because of the evidence that the RNAs of A1MV and TSV contain specific binding sites for their own as well as each others coat protein, and that binding of coat protein to these sites is required to initiate infection (Van Vloten-Doting, Virology 65, 215-225 (1975)). The 3'-terminal homologous regions of A1MV and TSV have two features in common: the presence of several stable hairpins and the multiple occurrence of the tetranucleotide sequence AUGC. The hairpins cause the linear array of tandemly repeated AUGC-boxes. It is postulated that the primary interaction of coat protein molecules with the RNAs of AlMV and TSV is a cooperative process involving several binding sites each being composed of a hairpin flanked at its 3'-side by an AUGC-sequence.

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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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