Evidence map›Paper›PMID 23468483›Full record

ArticleJournal of virology2013

Conformational epitope consisting of the V3 and V4 loops as a target for potent and broad neutralization of simian immunodeficiency viruses.

Takeo Kuwata, Kaori Takaki, Kazuhisa Yoshimura, Ikumi Enomoto, Fan Wu, Ilnour Ourmanov, Vanessa M Hirsch, Masaru Yokoyama, Hironori Sato, Shuzo Matsushita

Open access · bronzeAbstract read
In one paragraph

Article in Journal of virology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.7field-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

19 citing papers in PubMed, 25 citations in OpenAlex.

  1. Viruses · 2022
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  16. Functional nanomaterials can optimize the efficacy of vaccines.Small (Weinheim an der Bergstrasse, Germany) · 2014
    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

10 authors at 3 institutions in 2 countries.

Takeo KuwataCenter for AIDS Research, Kumamoto University, Kumamoto, Japan.
Kaori Takaki
Kazuhisa Yoshimura
Ikumi Enomoto
Fan Wu
Ilnour Ourmanov
Vanessa M Hirsch
Masaru Yokoyama
Hironori Sato
Shuzo Matsushita
Kumamoto University · JPNational Institute of Allergy and Infectious Diseases · USNational Institute of Infectious Diseases · JP

Funding

Vaccine Studies Of Simian Immunodeficiency Virus (SIV) in MacaquesZIAAI000686 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI HIRSCH, VANESSA M. · 2009 to 2018
$10.0M
6 · The paper itself

Abstract

Inducing neutralizing antibodies (NAb) is the key to developing a protective vaccine against human immunodeficiency virus type 1 (HIV-1). To clarify the neutralization mechanism of simian immunodeficiency virus (SIV), we analyzed NAb B404, which showed potent and broad neutralizing activity against various SIV strains. In 4 SIVsmH635FC-infected macaques, B404-like antibodies using the specific VH3 gene with a long complementarity-determining region 3 loop and λ light chain were the major NAbs in terms of the number and neutralizing potency. This biased NAb induction was observed in all 4 SIVsmH635FC-infected macaques but not in 2 macaques infected with a SIV mix, suggesting that induction of B404-like NAbs depended on the inoculated virus. Analysis using Env mutants revealed that the V3 and V4 loops were critical for B404 binding. The reactivity to the B404 epitope on trimeric, but not monomeric, Env was enhanced by CD4 ligation. The B404-resistant variant, which was induced by passages with increasing concentrations of B404, accumulated amino acid substitutions in the C2 region of gp120. Molecular dynamics simulations of the gp120 outer domains indicated that the C2 mutations could effectively alter the structural dynamics of the V3/V4 loops and their neighboring regions. These results suggest that a conformational epitope consisting of the V3 and V4 loops is the target for potent and broad neutralization of SIV. Identifying the new neutralizing epitope, as well as specifying the VH3 gene used for epitope recognition, will help to develop HIV-1 vaccines.

Indexed as

AnimalsAntibodies, NeutralizingAntibodies, ViralDNA Mutational AnalysisEpitope MappingEpitopesMacacaMembrane GlycoproteinsMolecular Dynamics SimulationMutation, MissenseSimian Acquired Immunodeficiency SyndromeSimian Immunodeficiency VirusViral Envelope ProteinsAntibodies, NeutralizingAntibodies, ViralEpitopesgp120 protein, Simian immunodeficiency virusMembrane GlycoproteinsViral Envelope Proteins

Identifiers

PMID23468483
PMCPMC3648159
OpenAlexW2082241468

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.