Evidence map›Paper›PMID 39018397›Full record

ArticleScience advances2024

Single-molecule imaging reveals allosteric stimulation of SARS-CoV-2 spike receptor binding domain by host sialic acid.

Marco A Díaz-Salinas, Aastha Jain, Natasha D Durham, James B Munro

Abstract read
In one paragraph

Article in Science advances, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing 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

13 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Human coronavirus HKU1 neutralization by glycan receptor mimicry.bioRxiv : the preprint server for biology · 2025
    Article
  9. Polysialosides Outperform Sulfated Analogs for Binding with SARS-CoV-2.Small (Weinheim an der Bergstrasse, Germany) · 2025
    Article
  10. Review
  11. Article
  12. Article
  13. 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

4 authors.

Marco A Díaz-SalinasDepartment of Microbiology and Physiological Systems, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA.
Aastha JainDepartment of Microbiology and Physiological Systems, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA.ORCID 0000-0003-2827-6263
Natasha D DurhamDepartment of Microbiology and Physiological Systems, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA.ORCID 0000-0003-0077-4770
James B MunroDepartment of Microbiology and Physiological Systems, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA.ORCID 0000-0001-7634-4633

Funding

Dynamics and mechanisms of filovirus envelop glycoproteinsR01AI174645 · NIAID · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI James B Munro · 2022 to 2026
$3.9M
Biophysical studies of viral membrane fusion proteinsR01GM143773 · NIGMS · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI MUNRO, JAMES B, SOMASUNDARAN, MOHAN · 2022 to 2025
$2.1M
NIAID NIH HHS R01 AI174645NIGMS NIH HHS R01 GM143773
6 · The paper itself

Abstract

Conformational dynamics of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spike glycoprotein (S) mediate exposure of the binding site for the cellular receptor, angiotensin-converting enzyme 2 (ACE2). The N-terminal domain (NTD) of S binds terminal sialic acid (SA) moieties on the cell surface, but the functional role of this interaction in virus entry is unknown. Here, we report that NTD-SA interaction enhances both S-mediated virus attachment and ACE2 binding. Through single-molecule Förster resonance energy transfer imaging of individual S trimers, we demonstrate that SA binding to the NTD allosterically shifts the S conformational equilibrium, favoring enhanced exposure of the ACE2-binding site. Antibodies that target the NTD block SA binding, which contributes to their mechanism of neutralization. These findings inform on mechanisms of S activation at the cell surface.

Indexed as

Angiotensin-Converting Enzyme 2N-Acetylneuraminic AcidProtein BindingSARS-CoV-2Spike Glycoprotein, CoronavirusAllosteric RegulationBinding SitesCOVID-19Fluorescence Resonance Energy TransferHumansProtein DomainsSingle Molecule ImagingVirus AttachmentVirus InternalizationACE2 protein, humanAngiotensin-Converting Enzyme 2N-Acetylneuraminic AcidSpike Glycoprotein, Coronavirusspike protein, SARS-CoV-2

Identifiers

PMID39018397
PMCPMC466946

What OpenQuestion holds

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LicenceCC BY-NC
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.