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An interaction between the Tobacco mosaic virus (TMV) 126kDa replication protein and a host-encoded Rab GDP dissociation inhibitor (GDI2) was identified and investigated for its role in infection. GDI proteins are essential components of vesicle trafficking pathways. TMV infection alters the localization of GDI2 from the cytoplasm to ER-associated complexes. Partial silencing of GDI2 results in significant...
A transient expression system using onion epidermal cells was used to investigate domains of the Tobacco mosaic virus (TMV) 126-kDa replicase protein involved in cellular localization. Initially, a nuclear localization signal (NLS), identified within the amino-terminus of the 126-kDa protein, was investigated for its functionality using fusion constructs containing the green fluorescent protein (GFP)...
The Tobacco mosaic virus (TMV) 126-kDa and read-through 183-kDa replicase-associated proteins have been shown to interact [Watanabe, T., Honda, A., Iwata, A., Ueda, S., Hibi, T., Ishihama, A. (1999). J. Virol. 73, 2633–2640]. To identify and investigate the sequence required for this interaction, five segments covering different portions of the 126/183-kDa open reading frame, including the methyl-transferase,...
Specific sequences of the tobacco mosaic virus (TMV) RNA-dependent RNA-polymerase (RdRp) gene were investigated for their ability to confer cross-protection. Nine overlapping segments ranging from 713 to 1070 nucleotides in length and covering the methyltransferase, helicase, and polymerase (POL) domains of the TMV RdRp open reading frame were systemically expressed in Nicotiana benthamiana using...
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