Evidence map›Paper›PMID 34323299›Full record

ArticleThe EMBO journal2021

A functional assay for serum detection of antibodies against SARS-CoV-2 nucleoprotein.

Anna Albecka, Dean Clift, Marina Vaysburd, Tyler Rhinesmith, Sarah L Caddy, David M Favara, Helen E Baxendale, Leo C James

Open access · hybridAbstract read
In one paragraph

Article in The EMBO journal, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.6field-weighted citation impact, top 14% 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

20 citing papers in PubMed, 25 citations in OpenAlex.

  1. Trial
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  7. Review
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  10. Review
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  12. Article
  13. Multiple Roles of TRIM21 in Virus Infection.International journal of molecular sciences · 2023
    Review
  14. Article
  15. Article
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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

8 authors at 3 institutions in 1 country.

Anna AlbeckaMRC Laboratory of Molecular Biology, Protein & Nucleic Acid Division, Cambridge, UK.ORCID 0000-0002-3672-5498
Dean CliftMRC Laboratory of Molecular Biology, Protein & Nucleic Acid Division, Cambridge, UK.ORCID 0000-0001-8141-7817
Marina VaysburdMRC Laboratory of Molecular Biology, Protein & Nucleic Acid Division, Cambridge, UK.
Tyler RhinesmithMRC Laboratory of Molecular Biology, Protein & Nucleic Acid Division, Cambridge, UK.
Sarah L CaddyMRC Laboratory of Molecular Biology, Protein & Nucleic Acid Division, Cambridge, UK.ORCID 0000-0002-9790-7420
David M FavaraDepartment of Oncology, Addenbrooke's Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK.
Helen E BaxendaleRoyal Papworth NHS Trust, Cambridge, UK.
Leo C JamesMRC Laboratory of Molecular Biology, Protein & Nucleic Acid Division, Cambridge, UK.ORCID 0000-0003-2131-0334
MRC Laboratory of Molecular Biology · GBPapworth Hospital NHS Foundation Trust · GBUniversity of Cambridge · GB

Funding

Medical Research Council MC_U105181010Medical Research Council U105181010UKRI | Medical Research Council (MRC) U105181010Wellcome TrustWellcome Trust 200594/Z/16/ZWellcome Trust 214344/A/18/Z
6 · The paper itself

Abstract

The humoral immune response to SARS-CoV-2 results in antibodies against spike (S) and nucleoprotein (N). However, whilst there are widely available neutralization assays for S antibodies, there is no assay for N-antibody activity. Here, we present a simple in vitro method called EDNA (electroporated-antibody-dependent neutralization assay) that provides a quantitative measure of N-antibody activity in unpurified serum from SARS-CoV-2 convalescents. We show that N antibodies neutralize SARS-CoV-2 intracellularly and cell-autonomously but require the cytosolic Fc receptor TRIM21. Using EDNA, we show that low N-antibody titres can be neutralizing, whilst some convalescents possess serum with high titres but weak activity. N-antibody and N-specific T-cell activity correlates within individuals, suggesting N antibodies may protect against SARS-CoV-2 by promoting antigen presentation. This work highlights the potential benefits of N-based vaccines and provides an in vitro assay to allow the antibodies they induce to be tested.

Indexed as

Antibodies, NeutralizingAntibodies, ViralCOVID-19HumansNucleoproteinsSARS-CoV-2Antibodies, NeutralizingAntibodies, ViralNucleoproteinsantibodiesneutralizationnucleoproteinSARS-CoV-2TRIM21

Identifiers

PMID34323299
PMCPMC8408615
OpenAlexW3185856817

What Socratic 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 Socratic graph.