Evidence map›Paper›PMID 33314755›Full record

ArticleThe FEBS journal2021

Second sialic acid-binding site of influenza A virus neuraminidase: binding receptors for efficient release.

Wenjuan Du, Erik de Vries, Frank J M van Kuppeveld, Mikhail Matrosovich, Cornelis A M de Haan

Open access · greenAbstract read
In one paragraph

Article in The FEBS journal, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
3.3field-weighted citation impact, top 6% 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

39 citing papers in PubMed, 52 citations in OpenAlex.

  1. Substitutions affecting the HA-NA-receptor balance preceded the emergence of the pandemic 2009 H1N1 virus.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  9. Avian influenza overview June-September 2025.EFSA journal. European Food Safety Authority · 2025
    Article
  10. Article
  11. Avian influenza overview March-June 2025.EFSA journal. European Food Safety Authority · 2025
    Article
  12. Review
  13. Avian influenza overview December 2024-March 2025.EFSA journal. European Food Safety Authority · 2025
    Article
  14. Review
  15. Review
  16. Review
  17. Article
  18. Article
  19. Highly pathogenic avian influenza A(H5N1) virus infections on fur farms connected to mass mortalities of black-headed gulls, Finland, July to October 2023.Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin · 2024
    Article
  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 at 2 institutions in 2 countries.

Wenjuan DuSection of Virology, Division of Infectious Diseases & Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, The Netherlands.
Erik de VriesSection of Virology, Division of Infectious Diseases & Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, The Netherlands.
Frank J M van KuppeveldSection of Virology, Division of Infectious Diseases & Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, The Netherlands.
Mikhail MatrosovichInstitute of Virology, Philipps University, Marburg, Germany.
Cornelis A M de HaanSection of Virology, Division of Infectious Diseases & Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, The Netherlands.ORCID 0000-0002-4459-9874
University of Applied Sciences Utrecht · NLPhilipps University of Marburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Influenza A viruses (IAVs) are a major cause of human respiratory tract infections and cause significant disease and mortality. Human IAVs originate from animal viruses that breached the host species barrier. IAV particles contain sialoglycan receptor-binding hemagglutinin (HA) and receptor-destroying neuraminidase (NA) in their envelope. When IAV crosses the species barrier, the functional balance between HA and NA needs to be adjusted to the sialoglycan repertoire of the novel host species. Relatively little is known about the role of NA in host adaptation in contrast to the extensively studied HA. NA prevents virion aggregation and facilitates release of (newly assembled) virions from cell surfaces and from decoy receptors abundantly present in mucus and cell glycocalyx. In addition to a highly conserved catalytic site, NA carries a second sialic acid-binding site (2SBS). The 2SBS preferentially binds α2,3-linked sialic acids and enhances activity of the neighboring catalytic site by bringing/keeping multivalent substrates in close contact with this site. In this way, the 2SBS contributes to the HA-NA balance of virus particles and affects virus replication. The 2SBS is highly conserved in all NA subtypes of avian IAVs, with some notable exceptions associated with changes in the receptor-binding specificity of HA and host tropism. Conservation of the 2SBS is invariably lost in human (pandemic) viruses and in several other viruses adapted to mammalian host species. Preservation or loss of the 2SBS is likely to be an important factor of the viral host range.

Indexed as

AnimalsBinding SitesDogsHemagglutinin Glycoproteins, Influenza VirusHumansInfluenza A virusInfluenza, HumanMadin Darby Canine Kidney CellsN-Acetylneuraminic AcidNeuraminidaseProtein BindingReceptors, Cell SurfaceReceptors, VirusRespiratory Tract InfectionsSialic AcidsViral Proteinsglycolipid receptorHemagglutinin Glycoproteins, Influenza VirusN-Acetylneuraminic AcidNA protein, influenza A virusNeuraminidaseReceptors, Cell SurfaceReceptors, VirusSialic AcidsViral Proteinshemagglutininhost rangeinfluenza A virusneuraminidasesecond sialic acid-binding sitesialic acid

Identifiers

PMID33314755
PMCPMC8518505
OpenAlexW3111338282

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.