Evidence map›Paper›PMID 21734041›Full record

ArticleJournal of virology2011

epitopes immediately below the base of the V3 loop of gp120 as targets for the initial autologous neutralizing antibody response in two HIV-1 subtype B-infected individuals.

Haili Tang, James E Robinson, S Gnanakaran, Ming Li, Eric S Rosenberg, Lautaro G Perez, Barton F Haynes, Hua-Xin Liao, Celia C Labranche, Bette T Korber and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in Journal of virology, 2011. 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
1.8field-weighted citation impact, top 16% 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.

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  17. Kinetic mechanism for HIV-1 neutralization by antibody 2G12 entails reversible glycan binding that slows cell entry.Proceedings of the National Academy of Sciences of the United States of America · 2012
    Article
  18. The Antibody Response against HIV-1.Cold Spring Harbor perspectives in medicine · 2012
    Review
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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

11 authors at 5 institutions in 1 country.

Haili TangDepartment of Surgery, Box 2926, Duke University Medical Center, Durham, NC 27710, USA.
James E Robinson
S Gnanakaran
Ming Li
Eric S Rosenberg
Lautaro G Perez
Barton F Haynes
Hua-Xin Liao
Celia C Labranche
Bette T Korber
David C Montefiori
Duke University · USDuke Medical Center · USLos Alamos National Laboratory · USHarvard University · USUniversity Medical Center New Orleans · US

Funding

NIAID NIH HHS AI0678501
6 · The paper itself

Abstract

Epitopes that drive the initial autologous neutralizing antibody response in HIV-1-infected individuals could provide insights for vaccine design. Although highly strain specific, these epitopes are immunogenic, vulnerable to antibody attack on infectious virus, and could be involved in the ontogeny of broadly neutralizing antibody responses. To delineate such epitopes, we used site-directed mutagenesis, autologous plasma samples, and autologous monoclonal antibodies to map the amino acid changes that led to escape from the initial autologous neutralizing antibody response in two HIV-1 subtype B-infected individuals. Additional mapping of the epitopes was accomplished by using alanine scanning mutagenesis. Escape in the two individuals occurred by different pathways, but the responses in both cases appeared to be directed against the same region of gp120. In total, three amino acid positions were identified that were independently associated with autologous neutralization. Positions 295 and 332 are located immediately before and after the N- and C-terminal cysteines of the V3 loop, respectively, the latter of which affected an N-linked glycan that was critical to the neutralization epitope. Position 415 affected an N-linked glycan at position 413 in the C terminus of V4 that might mask epitopes near the base of V3. All three sites lie in close proximity on a four-stranded antiparallel sheet on the outer domain of gp120. We conclude that a region just below the base of the V3 loop, near the coreceptor binding domain of gp120, can be a target for autologous neutralization.

Indexed as

Amino Acid SubstitutionAntibodies, NeutralizingEpitopesHIV-1HIV AntibodiesHIV Envelope Protein gp120HIV InfectionsHumansModels, MolecularMutagenesis, Site-DirectedMutant ProteinsNeutralization TestsProtein ConformationAntibodies, NeutralizingEpitopesgp120 protein, Human immunodeficiency virus 1HIV AntibodiesHIV Envelope Protein gp120Mutant Proteins

Identifiers

PMID21734041
PMCPMC3165744
OpenAlexW2112045651

What OpenQuestion holds

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Read underepoch 390

Registered trials

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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.