Diverse and Newly Recognized Effects Associated with Short Interfering RNA Binding Site Modifications on the Tomato Bushy Stunt Virus P19 Silencing Suppressor

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Diverse and newly recognized effects associated with short interfering RNA binding site modifications on the Tomato bushy stunt virus p19 silencing suppressor.

The Tomato bushy stunt virus-encoded P19 forms dimers that bind duplex short interfering RNAs (siRNAs) to suppress RNA silencing. P19 is also involved in multiple host-specific activities, including the elicitation of symptoms, and in local and/or systemic spread. To study the correlation between those various roles and the siRNA binding by P19, predicted siRNA-interacting sites were modified. ...

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Translocation of Tomato bushy stunt virus P19 protein into the nucleus by ALY proteins compromises its silencing suppressor activity.

The P19 protein of Tomato bushy stunt virus is a potent suppressor of RNA silencing and, depending on the host species, is required for short- and long-distance virus movement and symptom production. P19 interacts with plant ALY proteins and relocalizes a subset of these proteins from the nucleus to the cytoplasm. Here we showed that coexpression by agroinfiltration in Nicotiana benthamiana of ...

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On the rigidity of RNA in tomato bushy stunt virus.

The motional state of RNA in tomato bushy stunt rirlls, both in thr crystalline st,attx and in solution, has been invrstigat,ed IuGng 31P nuclear magnetic resonance methods. It, has been found that t’hr RNA is highly immobile in tho nativ Crus. and it is suggested that t,he lack of a high-resolution X-ray diffraction patt,crn for either the RNB or the N-terminal repions of the pro&n coat molcrn...

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ژورنال

عنوان ژورنال: Journal of Virology

سال: 2009

ISSN: 0022-538X,1098-5514

DOI: 10.1128/jvi.02186-08