Evidence map›Paper›PMID 11836384›Full record

ArticleJournal of virology2002

Efficient cleavage of ribosome-associated poly(A)-binding protein by enterovirus 3C protease.

N Muge Kuyumcu-Martinez, Michelle Joachims, Richard E Lloyd

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 79 papers.

0numbers the graph read from it
0cells of the map it votes in
79citing papers in PubMed
4.8field-weighted citation impact, top 4% 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

79 citing papers in PubMed, 134 citations in OpenAlex.

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  11. Seneca Valley Virus 3CPathogens (Basel, Switzerland) · 2020
    Article
  12. Article
  13. Translation control of Enterovirus A71 gene expression.Journal of biomedical science · 2020
    Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

19 more citing papers are in PubMed but not listed here.

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

3 authors at 2 institutions in 1 country.

N Muge Kuyumcu-MartinezDepartment of Molecular Virology and Microbiology, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA.
Michelle Joachims
Richard E Lloyd
Baylor College of Medicine · USUniversity of Oklahoma Health Sciences Center · US

Funding

UNIVERSITY OF CALIFORNIA, SANTA CRUZ IMSD PROGRAMR25GM058903 · NIGMS · UNIVERSITY OF CALIFORNIA SANTA CRUZ · PI JURICA, MELISSA S · 1999 to 2019
$12.2M
MECHANISMS OF TRANSLATION CONTROL DURING APOPTOSISR01GM059803 · NIGMS · BAYLOR COLLEGE OF MEDICINE · PI LLOYD, RICHARD E · 1999 to 2007
$2.2M
CONTROL OF TRANSLATION BY POLIOVIRUS PROTEINASER01AI027914 · NIAID · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI LLOYD, RICHARD E · 1989 to 1999
–
NIAID NIH HHS AI 27914NIGMS NIH HHS GM 58903NIGMS NIH HHS R01 GM059803
6 · The paper itself

Abstract

Poliovirus (PV) causes a rapid and drastic inhibition of host cell cap-dependent protein synthesis during infection while preferentially allowing cap-independent translation of its own genomic RNA via an internal ribosome entry site element. Inhibition of cap-dependent translation is partly mediated by cleavage of an essential translation initiation factor, eIF4GI, during PV infection. In addition to cleavage of eIF4GI, cleavage of eIF4GII and poly(A)-binding protein (PABP) has been recently proposed to contribute to complete host translation shutoff; however, the relative importance of eIF4GII and PABP cleavage has not been determined. At times when cap-dependent translation is first blocked during infection, only 25 to 35% of the total cellular PABP is cleaved; therefore, we hypothesized that the pool of PABP associated with polysomes may be preferentially targeted by viral proteases. We have investigated what cleavage products of PABP are produced in vivo and the substrate determinants for cleavage of PABP by 2A protease (2A(pro)) or 3C protease (3C(pro)). Our results show that PABP in ribosome-enriched fractions is preferentially cleaved in vitro and in vivo compared to PABP in other fractions. Furthermore, we have identified four N-terminal PABP cleavage products produced during PV infection and have shown that viral 3C protease generates three of the four cleavage products. Also, 3C(pro) is more efficient in cleaving PABP in ribosome-enriched fractions than 2A(pro) in vitro. In addition, binding of PABP to poly(A) RNA stimulates 3C(pro)-mediated cleavage and inhibits 2A(pro)-mediated cleavage. These results suggest that 3C(pro) plays a major role in processing PABP during virus infection and that the interaction of PABP with translation initiation factors, ribosomes, or poly(A) RNA may promote its cleavage by viral 2A and 3C proteases.

Indexed as

3C Viral ProteasesAmino Acid SequenceCysteine EndopeptidasesHeLa CellsHumansMolecular Sequence DataPoliovirusPoly(A)-Binding ProteinsRibosomesRNA-Binding ProteinsSubcellular FractionsViral Proteins3C Viral ProteasesCysteine Endopeptidasespicornain 2A, PicornavirusPoly(A)-Binding ProteinsRNA-Binding ProteinsViral Proteins

Identifiers

PMID11836384
PMCPMC135927
OpenAlexW2169752594

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.