Evidence map›Paper›PMID 31084711›Full record

ArticleeLife2019

Influenza A virus surface proteins are organized to help penetrate host mucus.

Michael D Vahey, Daniel A Fletcher

Open access · goldAbstract read
In one paragraph

Article in eLife, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 85 papers.

0numbers the graph read from it
0cells of the map it votes in
85citing papers in PubMed
14.2field-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

85 citing papers in PubMed, 155 citations in OpenAlex.

  1. Review
  2. Mucins and Respiratory Virus Infection.Annual review of virology · 2026
    Review
  3. Review
  4. Article
  5. Influenza.Nature reviews. Disease primers · 2026
    Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Programming DNA machines to move.Nature reviews. Chemistry · 2026
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Implications of morphological variation in influenza viruses.Microbiology and molecular biology reviews : MMBR · 2025
    Review
  16. Enhanced visualization of influenza A virus entry into living cells using virus-view atomic force microscopy.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  17. Article
  18. Review
  19. Article
  20. Haptotactic Motion of Multivalent Vesicles Along Ligand-Density Gradients.Langmuir : the ACS journal of surfaces and colloids · 2025
    Article

25 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

2 authors at 2 institutions in 1 country.

Michael D VaheyDepartment of Bioengineering, University of California, Berkeley, Berkeley, United States.ORCID 0000-0001-9453-4860
Daniel A FletcherDepartment of Bioengineering, University of California, Berkeley, Berkeley, United States.ORCID 0000-0002-1890-5364
Lawrence Berkeley National Laboratory · USUniversity of California, Berkeley · US

Funding

Force-Mediated Membrane FusionR01GM114671 · NIGMS · UNIVERSITY OF CALIFORNIA BERKELEY · PI FLETCHER, DANIEL A · 2016 to 2019
$1.4M
Burroughs Wellcome Fund CASI Award 1013923NIGMS NIH HHS R01 GM114671NIH HHS GM114671University of California Berkeley Immunotherapeutics and Vaccine Research Initiative
6 · The paper itself

Abstract

Influenza A virus (IAV) enters cells by binding to sialic acid on the cell surface. To accomplish this while avoiding immobilization by sialic acid in host mucus, viruses rely on a balance between the receptor-binding protein hemagglutinin (HA) and the receptor-cleaving protein neuraminidase (NA). Although genetic aspects of this balance are well-characterized, little is known about how the spatial organization of these proteins in the viral envelope may contribute. Using site-specific fluorescent labeling and super-resolution microscopy, we show that HA and NA are asymmetrically distributed on the surface of filamentous viruses, creating a spatial organization of binding and cleaving activities that causes viruses to step consistently away from their NA-rich pole. This Brownian ratchet-like diffusion produces persistent directional mobility that resolves the virus's conflicting needs to both penetrate mucus and stably attach to the underlying cells, potentially contributing to the prevalence of the filamentous phenotype in clinical isolates of IAV.

Indexed as

Virus AttachmentAnimalsDogsHEK293 CellsHemagglutinin Glycoproteins, Influenza VirusHumansInfluenza A virusMadin Darby Canine Kidney CellsMembrane ProteinsMicroscopy, FluorescenceMucusNeuraminidaseStaining and LabelingViral ProteinsHemagglutinin Glycoproteins, Influenza VirusMembrane ProteinsNA protein, influenza A virusNeuraminidaseViral ProteinsBrownian ratchetinfectious diseaseInfluenza A virusmicrobiologymucusphysics of living systemssite-specific labelingsuper-resolution microscopyvirus

Identifiers

PMID31084711
PMCPMC6516830
OpenAlexW2907652897

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.