Literature DB >> 20504939

Evidence for a premature termination mechanism of subgenomic mRNA transcription in a carmovirus.

Baodong Wu1, Stefanie Oliveri, Jana Mandic, K Andrew White.   

Abstract

The transcriptional mechanism utilized by turnip crinkle carmovirus to synthesize subgenomic (sg) mRNAs was investigated by analyzing viral RNAs and their associated regulatory RNA elements. In vivo analyses revealed the following: (i) that minus-strand sg RNAs are detectable in infections, (ii) that minus-strand sg RNA accumulation can be partially uncoupled from that of their plus-strand sg mRNA counterparts, and (iii) that an RNA secondary structure located upstream of the sg mRNA start site mediates transcription by functioning in the plus strand of the viral genome. Collectively, these observations are consistent with this carmovirus using a premature termination mechanism for sg mRNA transcription.

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Year:  2010        PMID： 20504939      PMCID： PMC2897639          DOI： 10.1128/JVI.00742-10

Source DB:  PubMed          Journal:  J Virol        ISSN： 0022-538X            Impact factor:   5.103


  13 in total

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