Evidence map›Paper›PMID 27647885›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2016

Structural basis for norovirus neutralization by an HBGA blocking human IgA antibody.

Sreejesh Shanker, Rita Czakó, Gopal Sapparapu, Gabriela Alvarado, Maria Viskovska, Banumathi Sankaran, Robert L Atmar, James E Crowe, Mary K Estes, B V Venkataram Prasad

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
5.4field-weighted citation impact, top 4% 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

41 citing papers in PubMed, 57 citations in OpenAlex.

  1. Article
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  3. Molecular genetic characterisation of norovirus GII.17 strains circulating in South Korea in 2024.Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin · 2026
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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

10 authors at 3 institutions in 1 country.

Sreejesh ShankerThe Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX 77030.
Rita CzakóDepartment of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX 77030.
Gopal SapparapuDepartment of Pediatrics, Vanderbilt University Medical Center, Nashville, TN 37232.
Gabriela AlvaradoDepartment of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232.
Maria ViskovskaThe Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX 77030.
Banumathi SankaranBerkeley Center for Structural Biology, Molecular Biophysics and Integrated Bioimaging, Lawrence Berkeley Laboratory, Berkeley, CA 94720.
Robert L AtmarDepartment of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX 77030; Department of Medicine, Baylor College of Medicine, Houston, TX 77030.
James E CroweDepartment of Pediatrics, Vanderbilt University Medical Center, Nashville, TN 37232; Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232.ORCID 0000-0002-0049-1079
Mary K EstesDepartment of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX 77030; Department of Medicine, Baylor College of Medicine, Houston, TX 77030 mestes@bcm.edu vprasad@bcm.edu.
B V Venkataram PrasadThe Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX 77030; Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX 77030; mestes@bcm.edu vprasad@bcm.edu.
Baylor College of Medicine · USVanderbilt University Medical Center · USLawrence Berkeley National Laboratory · US

Funding

Tumor BiologyP30CA125123 · NCI · BAYLOR COLLEGE OF MEDICINE · PI DAVID R ROWLEY · 2007 to 2026
$73.9M
X-ray Crystallographic Studies on CalicivirusesP01AI057788 · NIAID · BAYLOR COLLEGE OF MEDICINE · PI ATMAR, ROBERT L., ESTES, MARY KOLB · 2004 to 2024
$34.4M
Tissue Analysis & Molecular Imaging CoreP30DK056338 · NIDDK · BAYLOR COLLEGE OF MEDICINE · PI Geoffrey A Preidis · 2001 to 2026
$28.3M
Vanderbilt/Meharry Initiative for Minority Student DvptR25GM062459 · NIGMS · VANDERBILT UNIVERSITY · PI VELEZ EDWARDS, DIGNA R · 2002 to 2020
$10.4M
Training Program in Translational Biology and Molecular MedicineT32GM088129 · NIGMS · BAYLOR COLLEGE OF MEDICINE · PI ROONEY, CLIONA M., VAN DEN VEYVER, IGNATIA B · 2010 to 2019
$3.0M
Molecular determinants of human antibody-mediated inhibition of human norovirusF31AI129357 · NIAID · VANDERBILT UNIVERSITY · PI ALVARADO, GABRIELA · 2017 to 2018
$48k
NCI NIH HHS P30 CA125123NIAID NIH HHS F31 AI129357NIAID NIH HHS P01 AI057788NIDDK NIH HHS P30 DK056338NIGMS NIH HHS R25 GM062459NIGMS NIH HHS T32 GM088129
6 · The paper itself

Abstract

Human noroviruses (HuNoVs) cause sporadic and epidemic gastroenteritis worldwide. They are classified into two major genogroups (GI and GII), with each genogroup further divided into multiple genotypes. Susceptibility to these viruses is influenced by genetically determined histo-blood group antigen (HBGA) expression. HBGAs function as cell attachment factors by binding to a surface-exposed region in the protruding (P) domain of the capsid protein. Sequence variations in this region that result in differential HBGA binding patterns and antigenicity are suggested to form a basis for strain diversification. Recent studies show that serum antibodies that block HBGA binding correlate with protection against illness. Although genogroup-dependent variation in HBGA binding specificity is structurally well characterized, an understanding of how antibodies block HBGA binding and how genotypic variations affect such blockade is lacking. Our crystallographic studies of the GI.1 P domain in complex with the Fab fragment of a human IgA monoclonal antibody (IgA 5I2) with HBGA blocking activity show that the antibody recognizes a conformational epitope formed by two surface-exposed loop clusters in the P domain. The antibody engulfs the HBGA binding site but does not affect its structural integrity. An unusual feature of the antigen recognition by IgA 5I2 is the predominant involvement of the CDR light chain 1 in contrast to the commonly observed CDR heavy chain 3, providing a unique perspective into antibody diversity in antigen recognition. Identification of the antigenic site in the P domain shows how genotypic variations might allow escape from antibody neutralization and exemplifies the interplay between antigenicity and HBGA specificity in HuNoV evolution.

Indexed as

Neutralization TestsAmino Acid SequenceAntibodies, BlockingAntigensBlood Group AntigensCrystallography, X-RayEpitopesGenotypeHumansImmunoglobulin AImmunoglobulin Fab FragmentsModels, MolecularNorovirusProtein DomainsViral ProteinsAntibodies, BlockingAntigensBlood Group AntigensEpitopesImmunoglobulin AImmunoglobulin Fab FragmentsViral Proteinsantibody neutralizationcrystal structureHBGA-blockade antibodynorovirusviral entry

Identifiers

PMID27647885
PMCPMC5056091
OpenAlexW2522311424

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.