Evidence map›Paper›PMID 20668082›Full record

ArticleJournal of virology2010

Characterization of the envelope glycoproteins associated with infectious hepatitis C virus.

Gabrielle Vieyres, Xavier Thomas, Véronique Descamps, Gilles Duverlie, Arvind H Patel, Jean Dubuisson

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 119 papers.

0numbers the graph read from it
0cells of the map it votes in
119citing papers in PubMed
9.8field-weighted citation impact, top 1% 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

119 citing papers in PubMed, 195 citations in OpenAlex.

  1. Trial
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  7. [Development approaches for vaccines against hepatitis C virus infections].Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz · 2022
    Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Review
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  15. Review
  16. Antibody Responses in Hepatitis C Infection.Cold Spring Harbor perspectives in medicine · 2021
    Review
  17. Review
  18. Article
  19. Virus-Mediated Cell-Cell Fusion.International journal of molecular sciences · 2020
    Review
  20. HCV Glycoprotein Structure and Implications for B-Cell Vaccine Development.International journal of molecular sciences · 2020
    Review

59 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

6 authors at 5 institutions in 2 countries.

Gabrielle VieyresInstitut Pasteur de Lille, Center for Infection & Immunity of Lille, F-59019 Lille, France.
Xavier Thomas
Véronique Descamps
Gilles Duverlie
Arvind H Patel
Jean Dubuisson
Université Lille Nord de France · FRCenter for Infection and Immunity of Lille · FRCentre Hospitalier Universitaire Amiens-Picardie · FRMRC University of Glasgow Centre for Virus Research · GBUniversité de Picardie Jules Verne · FR

Funding

Howard Hughes Medical InstituteMedical Research Council MC_U130184144
6 · The paper itself

Abstract

Hepatitis C is caused by an enveloped virus whose entry is mediated by two glycoproteins, namely, E1 and E2, which have been shown to assemble as a noncovalent heterodimer. Despite extensive research in the field of such an important human pathogen, hepatitis C virus (HCV) glycoproteins have only been studied so far in heterologous expression systems, and their organization at the surfaces of infectious virions has not yet been described. Here, we characterized the envelope glycoproteins associated with cell-cultured infectious virions and compared them with their prebudding counterparts. Viral particles were analyzed by ultracentrifugation, and the envelope glycoproteins were characterized by coimmunoprecipitation and receptor pulldown assays. Furthermore, their oligomeric state was determined by sedimentation through sucrose gradients and by separation by sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) under nonreducing conditions. In sucrose gradient analyses, HCV envelope glycoproteins were associated with fractions containing the most infectious viral particles. Importantly, besides maturation of some of their glycans, HCV envelope glycoproteins showed a dramatic change in their oligomeric state after incorporation into the viral particle. Indeed, virion-associated E1 and E2 envelope glycoproteins formed large covalent complexes stabilized by disulfide bridges, whereas the intracellular forms of these proteins assembled as noncovalent heterodimers. Furthermore, the virion-associated glycoprotein complexes were recognized by the large extracellular loop of CD81 as well as conformation-sensitive antibodies, indicating that these proteins are in a functional conformation. Overall, our study fills a gap in the description of HCV outer morphology and should guide further investigations into virus entry and assembly.

Indexed as

Antigens, CDCell LineDisulfidesGlycosylationHepacivirusHeparinHost-Pathogen InteractionsHumansMannoseMultiprotein ComplexesPolysaccharidesProtein ConformationProtein MultimerizationReceptors, VirusTetraspanin 28Viral Envelope ProteinsAntigens, CDCD81 protein, humanDisulfidesE1 protein, Hepatitis C virusglycoprotein E2, Hepatitis C virusHeparinMannoseMultiprotein ComplexesPolysaccharidesReceptors, VirusTetraspanin 28Viral Envelope Proteins

Identifiers

PMID20668082
PMCPMC2937754
OpenAlexW2135495604

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.