Evidence map›Paper›PMID 34915422›Full record

ArticleJournal of autoimmunity2022

Omicron SARS-CoV-2 variant: Unique features and their impact on pre-existing antibodies.

Saathvik R Kannan, Austin N Spratt, Kalicharan Sharma, Hitendra S Chand, Siddappa N Byrareddy, Kamal Singh

Registry-linked trialOpen access · greenAbstract read
In one paragraph

Article in Journal of autoimmunity, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05476822 (Profiling Spike Protein Antibody Response Post COVID-19 Booster), which is not on this map. Cited by 136 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
136citing papers in PubMed, 3 pooled it
14.4field-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.

NCT05476822 withdrawnnot on this map

Profiling Spike Protein Antibody Response Post COVID-19 Booster

TypeobservationalSponsorDavid Grant U.S. Air Force Medical CenterRan2022 to 2023Enrolled0ConditionsCOVID-19 Booster, Spike Protein IgG AntibodyArmsObtain antibody titers
3 · Its place in the literature

Who cites it

136 citing papers in PubMed, 3 syntheses or guidelines pooled it, 232 citations in OpenAlex.

  1. Pooled it
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  6. Machine learning-guided rational engineering of ACE2-derived peptides for broad-spectrum neutralization of SARS-CoV-2 variants.Saudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society · 2026
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76 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

6 authors at 4 institutions in 3 countries.

Saathvik R KannanBond Life Sciences Center, University of Missouri, Columbia, MO, USA.
Austin N SprattBond Life Sciences Center, University of Missouri, Columbia, MO, USA.
Kalicharan SharmaDelhi Pharmaceutical Sciences and Research University, New Delhi, India.
Hitendra S ChandDepartment of Immunology and Nano-Medicine, Herbert Wertheim College of Medicine, Florida International University, Miami, FL, 33199, USA.
Siddappa N ByrareddyDepartment of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, USA; Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE, USA; Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA; Division of Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institute, Stockholm, Sweden. Electronic address: sid.byrareddy@unmc.edu.
Kamal SinghBond Life Sciences Center, University of Missouri, Columbia, MO, USA; Delhi Pharmaceutical Sciences and Research University, New Delhi, India; Division of Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institute, Stockholm, Sweden; Department of Veterinary Pathobiology, University of Missouri, Columbia, MO, USA. Electronic address: singhka@missouri.edu.
Karolinska Institutet · SEUniversity of Missouri · USDelhi Pharmaceutical Science and Research University · INFlorida International University · US

Funding

Epigenetic mechanisms underlying cannabinoid modulation of neuroinflammation in HIV/SIV infection-supplementR01DA052845 · NIDA · TEXAS BIOMEDICAL RESEARCH INSTITUTE · PI BYRAREDDY, SIDDAPPA N, MOHAN, MAHESH · 2020 to 2024
$4.0M
Role of HIV Env glycosylation in mucosal transmissionR01AI113883 · NIAID · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI BYRAREDDY, SIDDAPPA N · 2014 to 2018
$3.9M
Ultrapotent Inhibitors of Wild-type and Multi-drug Resistant HIVR37AI076119 · NIAID · EMORY UNIVERSITY · PI Stefan G Sarafianos · 2020 to 2026
$3.6M
Limiting HIV establishment and maintenace by preserving intestinal immunityR01AI129745 · NIAID · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI BYRAREDDY, SIDDAPPA N, PAIARDINI, MIRKO · 2017 to 2020
$3.3M
Novel long noncoding RNAs in the airway mucous responseR21AI144374 · NIAID · FLORIDA INTERNATIONAL UNIVERSITY · PI LAKSHMANA, MADEPALLI KRISHNAPPA · 2019 to 2020
$625k
NIAID NIH HHS R01 AI113883NIAID NIH HHS R01 AI129745NIAID NIH HHS R21 AI144374NIAID NIH HHS R37 AI076119NIDA NIH HHS R01 DA052845
6 · The paper itself

Abstract

Severe Acute Respiratory Coronavirus (SARS-CoV-2) has been emerging in the form of different variants since its first emergence in early December 2019. A new Variant of Concern (VOC) named the Omicron variant (B.1.1.529) was reported recently. This variant has a large number of mutations in the S protein. To date, there exists a limited information on the Omicron variant. Here we present the analyses of mutation distribution, the evolutionary relationship of Omicron with previous variants, and probable structural impact of mutations on antibody binding. Our analyses show the presence of 46 high prevalence mutations specific to Omicron. Twenty-three of these are localized within the spike (S) protein and the rest localized to the other 3 structural proteins of the virus, the envelope (E), membrane (M), and nucleocapsid (N). Phylogenetic analysis showed that the Omicron is closely related to the Gamma (P.1) variant. The structural analyses showed that several mutations are localized to the region of the S protein that is the major target of antibodies, suggesting that the mutations in the Omicron variant may affect the binding affinities of antibodies to the S protein.

Indexed as

Antibodies, ViralBinding SitesCOVID-19HumansMutationPhylogenyProtein Structure, TertiarySARS-CoV-2Spike Glycoprotein, CoronavirusAntibodies, ViralSpike Glycoprotein, Coronavirusspike protein, SARS-CoV-2B.1.1.529COVID-19Omicron variantSARS-CoV-2Variants

Identifiers

PMID34915422
PMCPMC8666303
OpenAlexW4200210635

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.