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  • Title: Complete nucleotide sequence of RNA 3 from alfalfa mosaic virus, strain S.
    Author: Ravelonandro M, Pinck M, Pinck L.
    Journal: Biochimie; 1984 May; 66(5):395-402. PubMed ID: 6205697.
    Abstract:
    We report the sequence of RNA 3 from strain S of Alfalfa mosaic virus (2,055 nucleotides). This RNA codes for a 32.4 kd protein (P3) and for the 24 kd coat protein (P4). The largest part of the sequence was established using RNA sequencing methods. The completion of the sequence in the region coding for P3 was achieved with cloned cDNA synthesized after priming at internal sites of RNA 3. Comparison of the RNA sequences coding P3 and P4 proteins in strain S with those reported in the literature for strain 425 revealed a higher amino acid substitution rate (3%) for P3 than for P4 (congruent to 1%) despite a similar average base substitution of 3-4% in these regions. In P3, two out of nine amino acid changes occur in hydrophilic regions. The amino acid changes in P4 do not modify the local hydrophilicity distribution. The intercistronic region displays a low degree of base substitution (2%) when compared with the untranslated 3'-end region (3.6%) or the 5'-end leader region (8%), the average substitution rate being 3.2%.
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