Evidence map›Paper›PMID 20484504›Full record

ArticleJournal of virology2010

The ubiquitin-proteasome system plays an important role during various stages of the coronavirus infection cycle.

Matthijs Raaben, Clara C Posthuma, Monique H Verheije, Eddie G te Lintelo, Marjolein Kikkert, Jan W Drijfhout, Eric J Snijder, Peter J M Rottier, Cornelis A M de Haan

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed, 1 pooled it
3.5field-weighted citation impact, top 7% 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

81 citing papers in PubMed, 1 synthesis or guideline pooled it, 125 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Pathophysiology of COVID-19-Related Extrapyramidal Disorders.Advances in experimental medicine and biology · 2024
    Review
  8. Article
  9. Article
  10. Review
  11. Protein homeostasis in aging and cancer.Frontiers in cell and developmental biology · 2023
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

21 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

9 authors at 2 institutions in 1 country.

Matthijs RaabenVirology Division, Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands.
Clara C Posthuma
Monique H Verheije
Eddie G te Lintelo
Marjolein Kikkert
Jan W Drijfhout
Eric J Snijder
Peter J M Rottier
Cornelis A M de Haan
Utrecht University · NLLeiden University Medical Center · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The ubiquitin-proteasome system (UPS) is a key player in regulating the intracellular sorting and degradation of proteins. In this study we investigated the role of the UPS in different steps of the coronavirus (CoV) infection cycle. Inhibition of the proteasome by different chemical compounds (i.e., MG132, epoxomicin, and Velcade) appeared to not only impair entry but also RNA synthesis and subsequent protein expression of different CoVs (i.e., mouse hepatitis virus [MHV], feline infectious peritonitis virus, and severe acute respiratory syndrome CoV). MHV assembly and release were, however, not appreciably affected by these compounds. The inhibitory effect on CoV protein expression did not appear to result from a general inhibition of translation due to induction of a cellular stress response by the inhibitors. Stress-induced phosphorylation of eukaryotic translation initiation factor 2alpha (eIF2alpha) generally results in impaired initiation of protein synthesis, but the sensitivity of MHV infection to proteasome inhibitors was unchanged in cells lacking a phosphorylatable eIF2alpha. MHV infection was affected not only by inhibition of the proteasome but also by interfering with protein ubiquitination. Viral protein expression was reduced in cells expressing a temperature-sensitive ubiquitin-activating enzyme E1 at the restrictive temperature, as well as in cells in which ubiquitin was depleted by using small interfering RNAs. Under these conditions, the susceptibility of the cells to virus infection was, however, not affected, excluding an important role of ubiquitination in virus entry. Our observations reveal an important role of the UPS in multiple steps of the CoV infection cycle and identify the UPS as a potential drug target to modulate the impact of CoV infection.

Indexed as

AnimalsBoronic AcidsBortezomibCatsCell LineChlorocebus aethiopsCoronavirus, FelineCoronavirus InfectionsLeupeptinsMiceMurine hepatitis virusOligopeptidesProtease InhibitorsProteasome Endopeptidase ComplexProteasome InhibitorsPyrazinesbenzyloxycarbonylleucyl-leucyl-leucine aldehydeBoronic AcidsBortezomibepoxomicinLeupeptinsOligopeptidesProtease InhibitorsProteasome Endopeptidase ComplexProteasome InhibitorsPyrazinesUbiquitin

Identifiers

PMID20484504
PMCPMC2897594
OpenAlexW2053699655

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.