Evidence map›Paper›PMID 15767420›Full record

ArticleJournal of virology2005

Acid-resistant bovine pestivirus requires activation for pH-triggered fusion during entry.

Thomas Krey, Heinz-Jürgen Thiel, Till Rümenapf

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed
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

46 citing papers in PubMed, 83 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. The EViruses · 2021
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Review
  16. Article
  17. Fusion of Enveloped Viruses in Endosomes.Traffic (Copenhagen, Denmark) · 2016
    Review
  18. Article
  19. Review
  20. 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

3 authors at 1 institution in 1 country.

Thomas KreyInstitut für Virologie, Fachbereich Veterinärmedizin, Justus-Liebig-Universität, Giessen, Germany.
Heinz-Jürgen Thiel
Till Rümenapf
University of Giessen · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The route of internalization of the pestivirus bovine viral diarrhea virus (BVDV) was studied by using different chemical and biophysical inhibitors of endocytosis. Expression of the dominant-negative mutant Dyn(K44A) of the GTPase dynamin in MDBK cells, as well as the treatment of the cells with chlorpromazine and beta-methyl-cyclodextrin inhibited BVDV entry. BVDV infection was also abolished by potassium (K+) depletion, hyperosmolarity, and different inhibitors of endosomal acidification. We conclude that BVDV likely enters the cell by clathrin-dependent endocytosis and that acidification initiates fusion with the endosomal membrane. Further studies revealed that BVDV was unable to undergo "fusion from without" at low pH. The finding that low pH is not sufficient to force adsorbed BVDV into fusion with the plasma membrane is compatible with the remarkable resistance of pestiviruses to inactivation by low pH. The importance of the abundant intra- and intermolecular disulfide bonds in BVDV glycoproteins for virus stability was studied by the use of reducing agents. The combination of dithiothreitol and acidic pH led to partial inactivation of BVDV and allowed fusion from without at low efficiency. Evidence is provided here that acid-resistant BVDV is destabilized during endocytosis to become fusogenic at an endosomal acidic pH. We suggest that destabilization of the virion occurs by breakage of disulfide bonds in the glycoproteins by an unknown mechanism.

Indexed as

EndocytosisAnimalsAntiviral Agentsbeta-CyclodextrinsCattleCell LineChlorpromazineDiarrhea Virus 1, Bovine ViralDithiothreitolDynaminsGlycoproteinsHydrogen-Ion ConcentrationMembrane FusionOsmotic PressurePotassiumReducing AgentsAntiviral Agentsbeta-CyclodextrinsChlorpromazineDithiothreitolDynaminsGlycoproteinsmethyl-beta-cyclodextrinPotassiumReducing AgentsViral Proteins

Identifiers

PMID15767420
PMCPMC1061521
OpenAlexW2126593480

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.