Evidence map›Paper›PMID 15681412›Full record

ArticleJournal of virology2005

Antibody neutralization escape mediated by point mutations in the intracytoplasmic tail of human immunodeficiency virus type 1 gp41.

Vandana Kalia, Surojit Sarkar, Phalguni Gupta, Ronald C Montelaro

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
2.0field-weighted citation impact, top 15% 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

40 citing papers in PubMed, 64 citations in OpenAlex.

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  12. Article
  13. The cytoplasmic tail of retroviral envelope glycoproteins.Progress in molecular biology and translational science · 2015
    Review
  14. Article
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  16. 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

4 authors at 1 institution in 1 country.

Vandana KaliaUniversity of Pittsburgh, Department of Molecular Genetics and Biochemistry, School of Medicine, W1144 BST, Pittsburgh, PA 15261, USA.
Surojit Sarkar
Phalguni Gupta
Ronald C Montelaro
University of Pittsburgh · US

Funding

DOMAIN-SPECIFIC SEROLOGY FOR SIV/SHIV VACCINE EVALUATIONR01AI047758 · NIAID · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI MONTELARO, RONALD C · 2000 to 2004
$1.3M
ROLE OF THE SIV/HIV TRANSMEMBRANE SUBUNIT OF ENV IN AIDSR01AI039415 · NIAID · UNIVERSITY OF CALIFORNIA DAVIS · PI GARDNER, MURRAY BRIGGS · 1996 to 1999
–
NIAID NIH HHS R01 AI047758NIAID NIH HHS R01 AI39415NIAID NIH HHS R01 AI47758
6 · The paper itself

Abstract

The persistence of human immunodeficiency virus type 1 (HIV-1) infection in the presence of robust host immunity has been associated in part with variation in viral envelope proteins leading to antigenic variation and escape from neutralizing antibodies. Previous studies of natural neutralization escape mutants have predominantly focused on gp120 and gp41 ectodomain sequence variations that alter antibody binding via changes in conformation or glycosylation pattern of the Env, likely due to the immune pressure exerted on the exposed ectodomain component of the glycoprotein. Here, we show for the first time a novel mechanism by which point mutations in the intracytoplasmic tail of the transmembrane component (gp41) of envelope can render the virus resistant to neutralization by monoclonal antibodies and broadly neutralizing polyclonal serum antibodies. Point mutations in a highly conserved structural motif within the intracytoplasmic tail resulted in decreased binding of neutralizing antibodies to the Env ectodomain, evidently due to allosteric changes both in the gp41 ectodomain and in gp120. While receptor binding and infectivity of the mutant virus remained unaltered, the changes in Env antigenicity were associated with an increase in neutralization resistance of the mutant virus. These studies demonstrate the structurally integrated nature of gp120 and gp41 and underscore a previously unrecognized potentially critical role for even minor sequence variation of the intracytoplasmic tail in modulating the antigenicity of the ectodomain of HIV-1 envelope glycoprotein complex.

Indexed as

Genetic VariationMutationAntibody SpecificityCell LineHIV-1HIV AntibodiesHIV Envelope Protein gp41HumansNeutralization TestsPoint MutationHIV AntibodiesHIV Envelope Protein gp41

Identifiers

PMID15681412
PMCPMC546547
OpenAlexW1974032982

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.