Evidence map›Paper›PMID 34817202›Full record

ArticleJournal of virology2022

Analysis of Glycosylation and Disulfide Bonding of Wild-Type SARS-CoV-2 Spike Glycoprotein.

Shijian Zhang, Eden P Go, Haitao Ding, Saumya Anang, John C Kappes, Heather Desaire, Joseph G Sodroski

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.0field-weighted citation impact, top 11% 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

22 citing papers in PubMed, 35 citations in OpenAlex.

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  14. Hidden Relationships betweenInternational journal of molecular sciences · 2022
    Review
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  16. Review
  17. Multifaceted membrane binding head of the SARS-CoV-2 spike protein.Current research in structural biology · 2022
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 1 country.

Shijian Zhang *Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Department of Microbiology, Harvard Medical Schoolgrid.471403.5, Boston, Massachusetts, USA.
Eden P Go *Department of Chemistry, University of Kansasgrid.266515.3, Lawrence, Kansas, USA.
Haitao DingDepartment of Medicine, University of Alabama at Birminghamgrid.265892.2, Birmingham, Alabama, USA.
Saumya AnangDepartment of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Department of Microbiology, Harvard Medical Schoolgrid.471403.5, Boston, Massachusetts, USA.
John C KappesDepartment of Medicine, University of Alabama at Birminghamgrid.265892.2, Birmingham, Alabama, USA.
Heather DesaireDepartment of Chemistry, University of Kansasgrid.266515.3, Lawrence, Kansas, USA.
Joseph G SodroskiDepartment of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Department of Microbiology, Harvard Medical Schoolgrid.471403.5, Boston, Massachusetts, USA.ORCID 0000-0002-9750-1615
Harvard University · USUniversity of Alabama at Birmingham · USUniversity of Kansas · US

Funding

Virology CoreP30AI027767 · NIAID · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI Latesha Ellen Elopre · 1988 to 2026
$84.1M
Generating Native Env Glycosylation in HIV Vaccine CandidatesR01AI125093 · NIAID · UNIVERSITY OF KANSAS LAWRENCE · PI DESAIRE, HEATHER R · 2016 to 2019
$2.7M
Mass Spectrometry Measurements for Complex PTMsR35GM130354 · NIGMS · UNIVERSITY OF KANSAS LAWRENCE · PI DESAIRE, HEATHER R · 2019 to 2023
$1.9M
HHS | National Institutes of Health (NIH) AI125093HHS | National Institutes of Health (NIH) AI27767HHS | National Institutes of Health (NIH) GM103054NIAID NIH HHS P30 AI027767NIAID NIH HHS R01 AI125093NIGMS NIH HHS R35 GM130354
6 · The paper itself

Abstract

The SARS-CoV-2 coronavirus, the etiologic agent of COVID-19, uses its spike (S) glycoprotein anchored in the viral membrane to enter host cells. The S glycoprotein is the major target for neutralizing antibodies elicited by natural infection and by vaccines. Approximately 35% of the SARS-CoV-2 S glycoprotein consists of carbohydrate, which can influence virus infectivity and susceptibility to antibody inhibition. We found that virus-like particles produced by coexpression of SARS-CoV-2 S, M, E, and N proteins contained spike glycoproteins that were extensively modified by complex carbohydrates. We used a fucose-selective lectin to purify the Golgi-modified fraction of a wild-type SARS-CoV-2 S glycoprotein trimer and determined its glycosylation and disulfide bond profile. Compared with soluble or solubilized S glycoproteins modified to prevent proteolytic cleavage and to retain a prefusion conformation, more of the wild-type S glycoprotein N-linked glycans are processed to complex forms. Even Asn 234, a significant percentage of which is decorated by high-mannose glycans on other characterized S trimer preparations, is predominantly modified in the Golgi compartment by processed glycans. Three incompletely occupied sites of O-linked glycosylation were detected. Viruses pseudotyped with natural variants of the serine/threonine residues implicated in O-linked glycosylation were generally infectious and exhibited sensitivity to neutralization by soluble ACE2 and convalescent antisera comparable to that of the wild-type virus. Unlike other natural cysteine variants, a Cys15Phe (C15F) mutant retained partial, but unstable, infectivity. These findings enhance our understanding of the Golgi processing of the native SARS-CoV-2 S glycoprotein carbohydrates and could assist the design of interventions.

Indexed as

Amino Acid SequenceAntibodies, NeutralizingCOVID-19DisulfidesGene Expression Regulation, ViralGlycosylationHumansModels, MolecularNeutralization TestsProtein ConformationProtein Processing, Post-TranslationalProtein TransportRecombinant ProteinsSARS-CoV-2Spike Glycoprotein, CoronavirusStructure-Activity RelationshipAntibodies, NeutralizingDisulfidesRecombinant ProteinsSpike Glycoprotein, Coronavirusspike glycoprotein, SARS-CoVcoronavirusCOVID-19disulfideglycosylationGolgimembrane proteinSARS-CoV-2spike glycoproteinviral proteinvirus entry

Identifiers

PMID34817202
PMCPMC8827021
OpenAlexW3215389901

What OpenQuestion holds

Textmetadata
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.