ArticleJournal of virology2012
p33-Independent activation of a truncated p92 RNA-dependent RNA polymerase of Tomato bushy stunt virus in yeast cell-free extract.
Article in Journal of virology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
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Who cites it
26 citing papers in PubMed.
- Screening bacterial effectors and human virus proteins in yeast to identify host factors driving tombusvirus RNA recombination: a role for autophagy and membrane phospholipid content.Journal of virology · 2025Article
- Subversion of selective autophagy for the biogenesis of tombusvirus replication organelles inhibits autophagy.PLoS pathogens · 2024Article
- Race against Time between the Virus and Host: Actin-Assisted Rapid Biogenesis of Replication Organelles is Used by TBSV to Limit the Recruitment of Cellular Restriction Factors.Journal of virology · 2022Article
- Article
- Dynamic interplay between the co-opted Fis1 mitochondrial fission protein and membrane contact site proteins in supporting tombusvirus replication.PLoS pathogens · 2021Article
- Role reversal of functional identity in host factors: Dissecting features affecting pro-viral versus antiviral functions of cellular DEAD-box helicases in tombusvirus replication.PLoS pathogens · 2020Article
- Reconstitution of an RNA Virus Replicase in Artificial Giant Unilamellar Vesicles Supports Full Replication and Provides Protection for the Double-Stranded RNA Replication Intermediate.Journal of virology · 2020Article
- Co-opted Cellular Sac1 Lipid Phosphatase and PI(4)P Phosphoinositide Are Key Host Factors during the Biogenesis of the Tombusvirus Replication Compartment.Journal of virology · 2020Article
- Host protein chaperones, RNA helicases and the ubiquitin network highlight the arms race for resources between tombusviruses and their hosts.Advances in virus research · 2020Article
- Interviral Recombination between Plant, Insect, and Fungal RNA Viruses: Role of the Intracellular CaJournal of virology · 2019Article
- Co-opting the fermentation pathway for tombusvirus replication: Compartmentalization of cellular metabolic pathways for rapid ATP generation.PLoS pathogens · 2019Article
- Blocking tombusvirus replication through the antiviral functions of DDX17-like RH30 DEAD-box helicase.PLoS pathogens · 2019Article
- Co-opting ATP-generating glycolytic enzyme PGK1 phosphoglycerate kinase facilitates the assembly of viral replicase complexes.PLoS pathogens · 2017Article
- The role of co-opted ESCRT proteins and lipid factors in protection of tombusviral double-stranded RNA replication intermediate against reconstituted RNAi in yeast.PLoS pathogens · 2017Article
- Review
- Role of Viral RNA and Co-opted Cellular ESCRT-I and ESCRT-III Factors in Formation of Tombusvirus Spherules Harboring the Tombusvirus Replicase.Journal of virology · 2016Article
- Activation of Tomato Bushy Stunt Virus RNA-Dependent RNA Polymerase by Cellular Heat Shock Protein 70 Is Enhanced by Phospholipids In Vitro.Journal of virology · 2015Article
- The proteasomal Rpn11 metalloprotease suppresses tombusvirus RNA recombination and promotes viral replication via facilitating assembly of the viral replicase complex.Journal of virology · 2015Article
- Novel mechanism of regulation of tomato bushy stunt virus replication by cellular WW-domain proteins.Journal of virology · 2015Article
- Coordinated function of cellular DEAD-box helicases in suppression of viral RNA recombination and maintenance of viral genome integrity.PLoS pathogens · 2015Article
Corrections and comments
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Authors and funding
2 authors.
Funding
Abstract
Plus-stranded RNA viruses replicate in membrane-bound structures containing the viral replicase complex (VRC). A key component of the VRC is the virally encoded RNA-dependent RNA polymerase (RdRp), which should be activated and incorporated into the VRC after its translation. To study the activation of the RdRp of Tomato bushy stunt virus (TBSV), a small tombusvirus of plants, we used N-terminal truncated recombinant RdRp, which supported RNA synthesis in a cell-free yeast extract-based assay. The truncated RdRp required a cis-acting RNA replication element and soluble host factors, while unlike the full-length TBSV RdRp, the truncated RdRp did not need the viral p33 replication cofactor or cellular membranes for RNA synthesis. Interestingly, the truncated RdRp used 3'-terminal extension for initiation and terminated prematurely at an internal cis-acting element. However, the truncated RdRp could perform de novo initiation on a TBSV plus-strand RNA template in the presence of the p33 replication cofactor, cellular membranes, and soluble host proteins. Altogether, the data obtained with the truncated RdRp indicate that this RdRp still requires activation, but with the participation of fewer components than with the full-length RdRp, making it suitable for future studies on dissection of the RdRp activation mechanism.
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