ArticleVirology2011
A single amino acid substitution in the C4 region in gp120 confers enhanced neutralization of HIV-1 by modulating CD4 binding sites and V3 loop.
Article in Virology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
What it found
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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.
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.
Who cites it
9 citing papers in PubMed, 17 citations in OpenAlex.
- Global Increases in Human Immunodeficiency Virus Neutralization Sensitivity Due to Alterations in the Membrane-Proximal External Region of the Envelope Glycoprotein Can Be Minimized by Distant State 1-Stabilizing Changes.Journal of virology · 2022Article
- Adaptation of an R5 Simian-Human Immunodeficiency Virus Encoding an HIV Clade A Envelope with or without Ablation of Adaptive Host Immunity: Differential Selection of Viral Mutants.Journal of virology · 2019Article
- Analysis of HIV-1 envelope evolution suggests antibody-mediated selection of common epitopes among Chinese former plasma donors from a narrow-source outbreak.Scientific reports · 2018Article
- Plasticity and Epitope Exposure of the HIV-1 Envelope Trimer.Journal of virology · 2017Article
- HIV-1 clade C escapes broadly neutralizing autologous antibodies with N332 glycan specificity by distinct mechanisms.Retrovirology · 2016Article
- Structure/Function Studies Involving the V3 Region of the HIV-1 Envelope Delineate Multiple Factors That Affect Neutralization Sensitivity.Journal of virology · 2016Article
- Multiple pathways of escape from HIV broadly cross-neutralizing V2-dependent antibodies.Journal of virology · 2013Article
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Corrections and comments
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Authors and funding
8 authors at 3 institutions in 2 countries.
Funding
Abstract
Identification of vulnerability in the HIV-1 envelope (Env) will aid in Env-based vaccine design. We recently found an HIV-1 clade C Env clone (4-2.J45) amplified from a recently infected Indian patient showing exceptional neutralization sensitivity to autologous plasma in contrast to other autologous Envs obtained at the same time point. By constructing chimeric Envs and fine mapping between sensitive and resistant Env clones, we found that substitution of highly conserved isoleucine (I) with methionine (M) (ATA to ATG) at position 424 in the C4 domain conferred enhanced neutralization sensitivity of Env-pseudotyped viruses to autologous and heterologous plasma antibodies. When tested against monoclonal antibodies targeting different sites in gp120 and gp41, Envs expressing M424 showed significant sensitivity to anti-V3 monoclonal antibodies and modestly to sCD4 and b12. Substitution of I424M in unrelated Envs also showed similar neutralization phenotype, indicating that M424 in C4 region induces exposure of neutralizing epitopes particularly in CD4 binding sites and V3 loop.
Indexed as
Identifiers
What OpenQuestion holds
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.