A Ribosome-Binding, 3′ Translational Enhancer Has a T-Shaped Structure and Engages in a Long-Distance RNA-RNA Interaction
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چکیده
منابع مشابه
A ribosome-binding, 3' translational enhancer has a T-shaped structure and engages in a long-distance RNA-RNA interaction.
Many plant RNA viruses contain elements in their 3' untranslated regions (3' UTRs) that enhance translation. The PTE (Panicum mosaic virus-like translational enhancer) of Pea enation mosaic virus (PEMV) binds to eukaryotic initiation factor 4E (eIF4E), but how this affects translation from the 5' end is unknown. We have discovered a three-way branched element just upstream of the PEMV PTE that ...
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SatC is a noncoding subviral RNA associated with Turnip crinkle virus (TCV). A 100-nt stretch in the 3' UTR of TCV contains three hairpins and two pseudoknots that fold into a tRNA-shaped structure (TSS) that binds 80S ribosomes. The 3' half of satC is derived from TCV and contains 6-nt differences in the TSS-analogous region. SatC binds poorly to 80S ribosomes, and molecular modeling that pred...
متن کاملThe 3' end of Turnip crinkle virus contains a highly interactive structure including a translational enhancer that is disrupted by binding to the RNA-dependent RNA polymerase.
Precise temporal control is needed for RNA viral genomes to translate sufficient replication-required products before clearing ribosomes and initiating replication. A 3' translational enhancer in Turnip crinkle virus (TCV) overlaps an internal T-shaped structure (TSS) that binds to 60S ribosomal subunits. The higher-order structure in the region was examined through alteration of critical seque...
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The Pea enation mosaic virus (PEMV) 3' translational enhancer, known as the kissing-loop T-shaped structure (kl-TSS), binds to 40S subunits, 60S subunits, and 80S ribosomes, whereas the Turnip crinkle virus (TCV) TSS binds only to 60S subunits and 80S ribosomes. Using electrophoretic mobility gel shift assay (EMSA)-based competition assays, the kl-TSS was found to occupy a different site in the...
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ژورنال
عنوان ژورنال: Journal of Virology
سال: 2012
ISSN: 0022-538X,1098-5514
DOI: 10.1128/jvi.00677-12