Dengue virus RNA is trimmed by the 5'→3' exoribonuclease XRN1 to produce an abundant, non-coding subgenomic flavivirus RNA (sfRNA) in infected cells. In a recent paper in Science, Manokaran et al. (2015) report that sfRNA binds TRIM25 to evade innate immune sensing of viral RNA by RIG-I.
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First report of Gulupa baciliform virus A associated with passion fruit in China.
Plant Dis
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Guizhou University, Jiaxiu South Street, Huaxi District, Guiyang, China, 550025;
Passion fruit (Passiflora edulis) is a commercially important crop known for its nutritional value, high antioxidant content, and use in beverages and desserts. Gulupa baciliform virus A (GBVA), tentatively named Badnavirus in the family Caulimoviridae, is a cryptic circular double-stranded DNA (dsDNA, ≈6,951 bps) virus recently reported in Colombia with asymptomatic infection of passion fruit (Sepúlveda et al. 2022).
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INRA Bordeaux, UMR 1332 Biologie du Fruit et Pathologie, INRA - Université de Bordeaux, CS20032, Villenave d'Ornon , France, 33882 cedex;
Privet leaf blotch-associated virus (PLBaV) is an Idaeovirus discovered by high-throughput sequencing (HTS) in privet (Ligustrum japonicum L) in southern Italy in 2017 (Navarro et al., 2017). In privet, it causes a leaf blotch disease with yellowish or whitish chlorotic blotches or ringspots.
View Article and Find Full Text PDFTwo complementing selection systems based on CCA-trimming exonucleases as a tool to monitor, select and evaluate enzymatic features of tRNA nucleotidyltransferases.
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Institute for Biochemistry, Leipzig University, Leipzig, Germany.
tRNA nucleotidyltransferase represents a ubiquitous and essential activity that adds the indispensable CCA triplet to the 3'-end of tRNAs. To fulfill this function, the enzyme contains a set of highly conserved motifs whose coordinated interplay is crucial for the sequence-specific CCA polymerization. In the human enzyme, alterations within these regions have been shown to lead to the manifestation of disease.
View Article and Find Full Text PDFSemblans: automated assembly and processing of RNA-seq data.
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Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL 60607, United States.
Motivation: Recent advancements in parallel sequencing methods have precipitated a surge in publicly available short-read sequence data. This has encouraged the development of novel computational tools for the de novo assembly of transcriptomes from RNA-seq data. Despite the availability of these tools, performing an end-to-end transcriptome assembly remains a programmatically involved task necessitating familiarity with best practices.
View Article and Find Full Text PDFImproved characterization of 3' single-cell RNA-seq libraries with paired-end avidity sequencing.
NAR Genom Bioinform
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Department of Biomedical Informatics, University of Utah School of Medicine, 421 Wakara Way #140, Salt Lake City, UT 84112, USA.
Prevailing poly(dT)-primed 3' single-cell RNA-seq protocols generate barcoded cDNA fragments containing the reverse transcriptase priming site or in principle the polyadenylation site. Direct sequencing across this site was historically difficult because of DNA sequencing errors induced by the homopolymeric primer at the 'barcode' end. Here, we evaluate the capability of 'avidity base chemistry' DNA sequencing from Element Biosciences to sequence through the primer and enable accurate paired-end read alignment and precise quantification of polyadenylation sites.
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