Evidence map›Paper›PMID 11724823›Full record

ArticleThe Journal of cell biology2001

Synchronized activation and refolding of influenza hemagglutinin in multimeric fusion machines.

I Markovic, E Leikina, M Zhukovsky, J Zimmerberg, L V Chernomordik

Abstract read
In one paragraph

Article in The Journal of cell biology, 2001. 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
–field-weighted citation impact
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.

  1. Review
  2. Computational methods to study enveloped viral entry.Biochemical Society transactions · 2021
    Review
  3. Article
  4. Influenza hemagglutinin drives viral entry via two sequential intramembrane mechanisms.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Structural characterization of a fusion glycoprotein from a retrovirus that undergoes a hybrid 2-step entry mechanism.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2013
    Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Cell entry of enveloped viruses.Current opinion in virology · 2011
    Review
  16. Driving a wedge between viral lipids blocks infection.Proceedings of the National Academy of Sciences of the United States of America · 2010
    Article
  17. Article
  18. Article
  19. Review
  20. Review
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.

I MarkovicLaboratory of Cellular and Molecular Biophysics, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA.
E Leikina
M Zhukovsky
J Zimmerberg
L V Chernomordik

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

At the time of fusion, membranes are packed with fusogenic proteins. Do adjacent individual proteins interact with each other in the plane of the membrane? Or does each of these proteins serve as an independent fusion machine? Here we report that the low pH-triggered transition between the initial and final conformations of a prototype fusogenic protein, influenza hemagglutinin (HA), involves a preserved interaction between individual HAs. Although the HAs of subtypes H3 and H2 show notably different degrees of activation, for both, the percentage of low pH-activated HA increased with higher surface density of HA, indicating positive cooperativity. We propose that a concerted activation of HAs, together with the resultant synchronized release of their conformational energy, is an example of a general strategy of coordination in biological design, crucial for the functioning of multiprotein fusion machines.

Indexed as

AnimalsButyratesCell LineCell MembraneDithiothreitolEnzyme-Linked Immunosorbent AssayHemagglutinin Glycoproteins, Influenza VirusHydrogen-Ion ConcentrationInfluenza A virusLiposomesMembrane FusionModels, BiologicalProtein FoldingThermolysinButyratesDithiothreitolHemagglutinin Glycoproteins, Influenza VirusLiposomesThermolysin

Identifiers

PMID11724823
PMCPMC2150858

What OpenQuestion holds

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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.