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  • Title: Nucleotide sequence of a Thai isolate of Papaya ringspot virus type W.
    Author: Attasart P, Charoensilp G, Kertbundit S, Panyim S, Juricek M.
    Journal: Acta Virol; 2002; 46(4):241-6. PubMed ID: 12693861.
    Abstract:
    The complete nucleotide sequence of a Thai isolate of Papaya ringspot virus (PRSV) type W (PRSV-W) was determined. The viral genome is 10,323 nucleotides (nts) long and contains an ORF encoding polyprotein 3,343 amino acids (aa) long, flanked with 5'- and 3'-non-coding regions (NCRs) of 85 and 206 nts, respectively. Out of the ten putative proteins P1 is the most variable (73.9% similarity) as compared to the PRSV type P (PRSV-P) sequences, while the CI protein is most conserved (99.1% similarity). The sequence similarity among the type W and P isolates also suggests that the P type arose from the W type. However, no significant difference between types P and W that would account for the host specificity was disclosed.
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