Evidence map›Paper›PMID 18321554›Full record

ArticleVirology2008

Modulation of enteroviral proteinase cleavage of poly(A)-binding protein (PABP) by conformation and PABP-associated factors.

Carlos I Rivera, Richard E Lloyd

Abstract read
In one paragraph

Article in Virology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
1.4field-weighted citation impact, top 18% 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

24 citing papers in PubMed, 36 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Translational control of coronaviruses.Nucleic acids research · 2020
    Review
  6. Review
  7. Article
  8. Translational Control in Virus-Infected Cells.Cold Spring Harbor perspectives in biology · 2019
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
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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.

Carlos I RiveraDepartment of Molecular Virology and Microbiology, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA.
Richard E Lloyd
Baylor College of Medicine · US

Funding

Translation Regulation by Enterovirus ProteinaseR01AI050237 · NIAID · BAYLOR COLLEGE OF MEDICINE · PI LLOYD, RICHARD E · 2002 to 2022
$6.9M
MECHANISMS OF TRANSLATION CONTROL DURING APOPTOSISR01GM059803 · NIGMS · BAYLOR COLLEGE OF MEDICINE · PI LLOYD, RICHARD E · 1999 to 2007
$2.2M
Translation Regulation by Enterovirus ProteinaseR56AI050237 · NIAID · BAYLOR COLLEGE OF MEDICINE · PI LLOYD, RICHARD E · 2007 to 2007
$384k
NIAID NIH HHS AI50237NIAID NIH HHS R01 AI050237NIAID NIH HHS R56 AI050237NIGMS NIH HHS GM59803NIGMS NIH HHS R01 GM059803
6 · The paper itself

Abstract

Poliovirus (PV) causes a drastic inhibition of cellular cap-dependant protein synthesis due to the cleavage of translation factors eukaryotic initiation factor 4G (eIF4G) and poly(A) binding protein (PABP). Only about half of cellular PABP is cleaved by viral 2A and 3C proteinases during infection. We have investigated PABP cleavage determinants that regulate this partial cleavage. PABP cleavage kinetics analyses indicate that PABP exists in multiple conformations, some of which are resistant to 3C(pro) or 2A(pro) cleavage and can be modulated by reducing potential. Cleavage reactions containing a panel of PABP-binding proteins revealed that eukaryotic release factor 3 (eRF3) and PABP-interacting protein 2 (Paip2) modulate and interfere with the cleavage susceptibility of PABP, whereas all other PABP-binding proteins tested do not. We show that PABP on cellular polysomes is cleaved only by 3C(pro) and that Paip2 does not sediment with polysomes. Also, viral polysomes contained only full-length PABP, however, cellular or viral ribosomes were equally susceptible to 3C(pro) cleavage in vitro. Finally, we determined that precursor 3CD and mature 3C(pro) have equivalent cleavage activity on purified PABP, but only 3C(pro) cleavage activity was stimulated by PABP-binding viral RNA. The results further elucidate complex mechanisms where multiple inherent PABP conformations and protein and RNA interactions both serve to differentially regulate PABP cleavage by 3CD, 3C(pro) and 2A(pro).

Indexed as

3C Viral ProteasesCysteine EndopeptidasesHeLa CellsHumansPeptide Termination FactorsPoliovirusPoly(A)-Binding ProteinsPolyribosomesProtein BindingProtein ConformationRepressor ProteinsRNA-Binding ProteinsRNA, RibosomalViral Proteins3C Viral ProteasesCysteine EndopeptidasesPAIP2 protein, humanpeptide-chain-release factor 3Peptide Termination Factorspicornain 2A, PicornavirusPoly(A)-Binding ProteinsRepressor ProteinsRNA-Binding ProteinsRNA, RibosomalViral Proteins

Identifiers

PMID18321554
PMCPMC2409284
OpenAlexW2012979773

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.