Evidence map›Paper›PMID 18094123›Full record

ArticleRNA (New York, N.Y.)2008

Factor requirements for translation initiation on the Simian picornavirus internal ribosomal entry site.

Sylvain de Breyne, Yingpu Yu, Tatyana V Pestova, Christopher U T Hellen

Open access · bronzeAbstract read
In one paragraph

Article in RNA (New York, N.Y.), 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 10% 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

41 citing papers in PubMed, 1 synthesis or guideline pooled it, 55 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Review
  15. Focus on Translation Initiation of the HIV-1 mRNAs.International journal of molecular sciences · 2018
    Review
  16. Review
  17. Article
  18. Review
  19. Rethinking mAnnual review of cell and developmental biology · 2017
    Review
  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

4 authors at 1 institution in 2 countries.

Sylvain de BreyneDepartment of Microbiology and Immunology, State University of New York Downstate Medical Center, Brooklyn, New York 11203, USA.
Yingpu Yu
Tatyana V Pestova
Christopher U T Hellen
State University of New York · US

Funding

IRES-mediated translation initiation on viral mRNAsR01AI051340 · NIAID · SUNY DOWNSTATE MEDICAL CENTER · PI HELLEN, CHRISTOPHER ULRICH TRISTRAM · 2002 to 2013
$3.6M
IRES-mediated translation initiation on viral mRNAsR56AI051340 · NIAID · SUNY DOWNSTATE MEDICAL CENTER · PI HELLEN, CHRISTOPHER ULRICH TRISTRAM · 2008 to 2015
$856k
NIAID NIH HHS AI-51340NIAID NIH HHS R01 AI051340NIAID NIH HHS R56 AI051340
6 · The paper itself

Abstract

The Simian picornavirus type 9 (SPV9) 5'-untranslated region (5' UTR) has been predicted to contain an internal ribosomal entry site (IRES) with structural elements that resemble domains of hepacivirus/pestivirus (HP) IRESs. In vitro reconstitution of initiation confirmed that this 5' UTR contains an IRES and revealed that it has both functional similarities and differences compared to HP IRESs. Like HP IRESs, the SPV9 IRES bound directly to 40S subunits and eukaryotic initiation factor (eIF) 3, depended on the conserved domain IIId for ribosomal binding and consequently for function, and additionally required eIF2/initiator tRNA to yield 48S complexes that formed elongation-competent 80S ribosomes in the presence of eIF5, eIF5B, and 60S subunits. Toeprinting analysis revealed that eIF1A stabilized 48S complexes, whereas eIF1 induced conformational changes in the 40S subunit, likely corresponding to partial opening of the entry latch of the mRNA-binding channel, that were exacerbated by eIF3 and suppressed by eIF1A. The SPV9 IRES differed from HP IRESs in that its function was enhanced by eIF4A/eIF4F when the IRES was adjacent to the wild-type coding sequence, but was less affected by these factors or by a dominant negative eIF4A mutant when potentially less structured coding sequences were present. Exceptionally, this IRES promoted binding of initiator tRNA to the initiation codon in the P site of 40S subunits independently of eIF2. Although these 40S/IRES/tRNA complexes could not form active 80S ribosomes, this constitutes a second difference between the SPV9 and HP IRESs. eIF1 destabilized the eIF2-independent ribosomal binding of initiator tRNA.

Indexed as

Peptide Chain Initiation, Translational5' Untranslated RegionsAnimalsEukaryotic Initiation FactorsPicornaviridaeRibosomesRNA, MessengerRNA, Transfer, MetRNA, Viral5' Untranslated RegionsEukaryotic Initiation FactorsRNA, MessengerRNA, Transfer, MetRNA, Viral

Identifiers

PMID18094123
PMCPMC2212249
OpenAlexW2155237995

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.