ArticleRNA (New York, N.Y.)2009
Translation initiation factors are not required for Dicistroviridae IRES function in vivo.
Article in RNA (New York, N.Y.), 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
45 citing papers in PubMed, 54 citations in OpenAlex.
- Structural studies of nedicistrovirus IRES-driven, initiation factor-independent translation shed light on key steps of eukaryotic translation elongation.Nucleic acids research · 2026Article
- Article
- Structural Studies of Nedicistrovirus IRES-Driven, Initiation Factor-independent Translation Shed Light on Key Steps of Eukaryotic Translation Elongation.bioRxiv : the preprint server for biology · 2025Article
- Discovery of functional factorless internal ribosome entry site-like structures through virome mining.PLoS pathogens · 2025Article
- FMRP Enhances the Translation ofInternational journal of molecular sciences · 2023Article
- Review
- Fatal attraction: The roles of ribosomal proteins in the viral life cycle.Wiley interdisciplinary reviews. RNA · 2021Review
- Established and Emerging Regulatory Roles of Eukaryotic Translation Initiation Factor 5B (eIF5B).Frontiers in genetics · 2021Review
- Sox9 Determines Translational Capacity During Early Chondrogenic Differentiation of ATDC5 Cells by Regulating Expression of Ribosome Biogenesis Factors and Ribosomal Proteins.Frontiers in cell and developmental biology · 2021Article
- Article
- An innovative protein expression system using RNA polymerase I for large-scale screening of high-nucleic-acid content Saccharomyces cerevisiae strains.Microbial biotechnology · 2020Article
- Unlike for cellular mRNAs and other viral internal ribosome entry sites (IRESs), the eIF3 subunit e is not required for the translational activity of the HCV IRES.The Journal of biological chemistry · 2020Article
- Comprehensive in vivo identification of the c-Myc mRNA protein interactome using HyPR-MS.RNA (New York, N.Y.) · 2019Article
- Review
- Noncanonical Translation Initiation in Eukaryotes.Cold Spring Harbor perspectives in biology · 2019Review
- Translational Control in Virus-Infected Cells.Cold Spring Harbor perspectives in biology · 2019Review
- Kinetics of CrPV and HCV IRES-mediated eukaryotic translation using single-molecule fluorescence microscopy.RNA (New York, N.Y.) · 2017Article
- High-yield cell-free synthesis of human EGFR by IRES-mediated protein translation in a continuous exchange cell-free reaction format.Scientific reports · 2016Article
- A dynamic RNA loop in an IRES affects multiple steps of elongation factor-mediated translation initiation.eLife · 2015Article
- Cell-Free Protein Synthesis: Pros and Cons of Prokaryotic and Eukaryotic Systems.Chembiochem : a European journal of chemical biology · 2015Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 1 institution in 1 country.
Funding
Abstract
The cricket paralysis virus (CrPV) intergenic region (IGR) internal ribosome entry site (IRES) uses an unusual mechanism of initiating translation, whereby the IRES occupies the P-site of the ribosome and the initiating tRNA enters the A-site. In vitro experiments have demonstrated that the CrPV IGR IRES is able to bind purified ribosomes and form 80S complexes capable of synthesizing small peptides in the absence of any translation initiation factors. These results suggest that initiation by this IRES is factor-independent. To determine whether the IGR IRES functions in the absence of initiation factors in vivo, we assayed IGR IRES activity in various yeast strains harboring mutations in canonical translation initiation factors. We used a dicistronic reporter assay in yeast to determine whether the CrPV IGR IRES is able to promote translation sufficient to support growth in the presence of various deletions or mutations in translation initiation factors. Using this assay, we have previously shown that the CrPV IGR IRES functions efficiently in yeast when ternary complexes (eIF2*GTP*initiator tRNA(met)) are reduced. Here, we demonstrate that the CrPV IGR IRES activity does not require the eukaryotic initiation factors eIF4G1 or eIF5B, and it is enhanced when eIF2B, the eIF3b subunit of eIF3, or eIF4E are impaired. Taken together, these data support a model in which the CrPV IGR IRES is capable of initiating protein synthesis in the absence of any initiation factors in vivo, and suggests that the CrPV IGR IRES initiates translation by directly recruiting the ribosomal subunits in vivo.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.