Evidence map›Paper›PMID 34452452›Full record

ArticleViruses2021

Interaction of Poliovirus Capsid Proteins with the Cellular Autophagy Pathway.

Anna Zimina, Ekaterina G Viktorova, Seyedehmahsa Moghimi, Jules Nchoutmboube, George A Belov

Open access · goldAbstract read
In one paragraph

Article in Viruses, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.1field-weighted citation impact, top 21% 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

7 citing papers in PubMed, 8 citations in OpenAlex.

  1. Article
  2. Nonlytic Egress and Transmission in the Virus World.Annual review of biochemistry · 2025
    Review
  3. Article
  4. Non-lytic spread of poliovirus requires the nonstructural protein 3CD.bioRxiv : the preprint server for biology · 2024
    Article
  5. Article
  6. Article
  7. 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

5 authors at 2 institutions in 1 country.

Anna ZiminaDepartment of Veterinary Medicine, University of Maryland, College Park, MD 20742, USA.
Ekaterina G ViktorovaDepartment of Veterinary Medicine, University of Maryland, College Park, MD 20742, USA.
Seyedehmahsa MoghimiDepartment of Veterinary Medicine, University of Maryland, College Park, MD 20742, USA.
Jules NchoutmboubeDepartment of Veterinary Medicine, University of Maryland, College Park, MD 20742, USA.
George A BelovDepartment of Veterinary Medicine, University of Maryland, College Park, MD 20742, USA.ORCID 0000-0002-0892-1731
University of Maryland, College Park · USVirginia–Maryland College of Veterinary Medicine · US

Funding

Role of host protein GBF1 in organizing enterovirus replication complexesR01AI125561 · NIAID · UNIV OF MARYLAND, COLLEGE PARK · PI BELOV, GEORGE A. · 2016 to 2020
$1.9M
Refocusing the immune response from structural to conserved non-structural proteins as a novel vaccination approach for inducing broad anti-enterovirus protectionR21AI153976 · NIAID · UNIV OF MARYLAND, COLLEGE PARK · PI BELOV, GEORGE A. · 2020 to 2021
$418k
National Institute of Allergy and Infectious Diseases R21AI153976NIAID NIH HHS R01 AI125561NIAID NIH HHS R21 AI153976
6 · The paper itself

Abstract

The capsid precursor P1 constitutes the N-terminal part of the enterovirus polyprotein. It is processed into VP0, VP3, and VP1 by the viral proteases, and VP0 is cleaved autocatalytically into VP4 and VP2. We observed that poliovirus VP0 is recognized by an antibody against a cellular autophagy protein, LC3A. The LC3A-like epitope overlapped the VP4/VP2 cleavage site. Individually expressed VP0-EGFP and P1 strongly colocalized with a marker of selective autophagy, p62/SQSTM1. To assess the role of capsid proteins in autophagy development we infected different cells with poliovirus or encapsidated polio replicon coding for only the replication proteins. We analyzed the processing of LC3B and p62/SQSTM1, markers of the initiation and completion of the autophagy pathway and investigated the association of the viral antigens with these autophagy proteins in infected cells. We observed cell-type-specific development of autophagy upon infection and found that only the virion signal strongly colocalized with p62/SQSTM1 early in infection. Collectively, our data suggest that activation of autophagy is not required for replication, and that capsid proteins contain determinants targeting them to p62/SQSTM1-dependent sequestration. Such a strategy may control the level of capsid proteins so that viral RNAs are not removed from the replication/translation pool prematurely.

Indexed as

AutophagyHost Microbial InteractionsCapsidCapsid ProteinsHEK293 CellsHeLa CellsHumansPoliovirusProtein Processing, Post-TranslationalRepliconRNA, ViralViral ProteinsVirionCapsid ProteinsRNA, ViralViral Proteinsautophagyenterovirusesenterovirus replicationLC3 processingpoliovirus

Identifiers

PMID34452452
PMCPMC8402707
OpenAlexW3188165571

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.