Evidence map›Paper›PMID 11283261›Full record

ArticleMolecular and cellular biology2001

Novel fluorescence-based screen to identify small synthetic internal ribosome entry site elements.

A Venkatesan, A Dasgupta

Open access · greenAbstract read
In one paragraph

Article in Molecular and cellular biology, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
1.8field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 33 citations in OpenAlex.

  1. Current Practice in Bicistronic IRES Reporter Use: A Systematic Review.International journal of molecular sciences · 2021
    Pooled it
  2. Review
  3. Article
  4. Article
  5. A Platform Technology for Monitoring the Unfolded Protein Response.Methods in molecular biology (Clifton, N.J.) · 2022
    Article
  6. Review
  7. Article
  8. Review
  9. Synthetic biology: advancing the design of diverse genetic systems.Annual review of chemical and biomolecular engineering · 2013
    Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Zuotin, a DnaJ molecular chaperone, stimulates cap-independent translation in yeast.Biochemical and biophysical research communications · 2006
    Article
  15. Searching for IRES.RNA (New York, N.Y.) · 2006
    Review
  16. Article
  17. A positive feedback vector for identification of nucleotide sequences that enhance translation.Proceedings of the National Academy of Sciences of the United States of America · 2005
    Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

A VenkatesanMolecular Biology Institute, University of California, Los Angeles 90095, USA.
A Dasgupta
University of California, Los Angeles · US

Funding

UCLA-Caltech Medical Scientist Training ProgramT32GM008042 · NIGMS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI AJIJOLA, OLUJIMI A, DAWSON, DAVID WAYNE · 1985 to 2023
$29.9M
TRANSLATION-INHIBITION OF HEPATITIS C AND POLIO VIRUSESR01AI045733 · NIAID · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI DASGUPTA, ASIM · 1999 to 2003
$1.2M
NIAID NIH HHS AI 45733NIAID NIH HHS R01 AI045733NIGMS NIH HHS T32 GM008042NINR NIH HHS NRSA/GM 08042-15
6 · The paper itself

Abstract

We report here a novel fluorescent protein-based screen to identify small, synthetic internal ribosome entry site (IRES) elements in vivo. A library of bicistronic plasmids encoding the enhanced blue and green fluorescent proteins (EBFP and EGFP) separated by randomized 50-nucleotide-long sequences was amplified in bacteria and delivered into mammalian cells via protoplast fusion. Cells that received functional IRES elements were isolated using the EBFP and EGFP reporters and fluorescence-activated cell sorting, and several small IRES elements were identified. Two of these elements were subsequently shown to possess IRES activity comparable to that of a variant of the encephalomyocarditis virus IRES element in a context-independent manner both in vitro and in vivo, and these elements functioned in multiple cell types. Although no sequence or structural homology was apparent between the synthetic IRES elements and known viral and cellular IRES elements, the two synthetic IRES elements specifically blocked poliovirus (PV) IRES-mediated translation in vitro. Competitive protein-binding experiments suggested that these IRES elements compete with PV IRES-mediated translation by utilizing some of the same factors as the PV IRES to direct translation. The utility of this fluorescent protein-based screen in identifying IRES elements with improved activity as well as in probing the mechanism of IRES-mediated translation is discussed.

Indexed as

Protein BiosynthesisBase SequenceCell FusionCell LineFlow CytometryGenes, ReporterGreen Fluorescent ProteinsHumansLuminescent ProteinsMicroscopy, FluorescenceMolecular Sequence DataNucleic Acid ConformationPlasmidsProtoplastsRibosomesRNA, Ribosomalblue fluorescent protein, Aequorea victoriaGreen Fluorescent ProteinsLuminescent ProteinsRNA, Ribosomal

Identifiers

PMID11283261
PMCPMC86912
OpenAlexW2124035966

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.