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Here we show that Tobacco mosaic virus (TMV), a positive-strand RNA virus known to end with 3׳ tRNA-like structures, does possess a small fraction of gRNA bearing polyadenylate tails. Particularly, many tails are at sites corresponding to the 3׳ end of near full length gRNA, and are composed of poly(A)-rich sequences containing the other nucleotides in addition to adenosine, resembling the degradation-stimulating...
The Rice stripe virus (RSV) pc4 has been determined as the viral movement protein (MP). In this study, the pc4 gene was cloned into a movement-deficient Tobacco mosaic virus (TMV). The resulting hybrid TMV-pc4, in addition to spreading cell to cell in Nicotiana tabacum, moved systemically and induced foliar necrosis in Nicotiana benthamiana, indicating novel functions of the RSV MP. A systematic alanine-scanning...
Deletion and alanine-substitution mutants of the Tomato spotted wilt virus NSm protein were generated to identify domains involved in tubule formation, movement and symptomatology using a heterologous Tobacco mosaic virus expression system. Two regions of NSm, G 19 -S 159 and G 209 -V 283 , were required for both tubule formation in protoplasts and cell-to-cell movement...
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