Evidence map›Paper›PMID 24303005›Full record

ArticlePloS one2013

The influence of N-linked glycans on the molecular dynamics of the HIV-1 gp120 V3 loop.

Natasha T Wood, Elisa Fadda, Robert Davis, Oliver C Grant, Joanne C Martin, Robert J Woods, Simon A Travers

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
1.5field-weighted citation impact, top 19% 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

24 citing papers in PubMed, 42 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. Glycosylation and the global virome.Molecular ecology · 2023
    Article
  8. Review
  9. Visualization of the HIV-1 Env glycan shield across scales.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  10. Article
  11. Article
  12. Review
  13. All-atom virus simulations.Current opinion in virology · 2018
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
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

7 authors at 4 institutions in 3 countries.

Natasha T WoodSouth African National Bioinformatics Institute, South African Medical Research Council Bioinformatics Unit, University of the Western Cape, Cape Town, South Africa.
Elisa Fadda
Robert Davis
Oliver C Grant
Joanne C Martin
Robert J Woods
Simon A Travers
Ollscoil na Gaillimhe – University of Galway · IESouth African Medical Research Council · ZANational University of Ireland, Maynooth · IEUniversity of Georgia · US

Funding

Integrating Experiment and Theory to Characterize Diagnostic Antibody SpecificityR01GM094919 · NIGMS · UNIVERSITY OF GEORGIA · PI WOODS, ROBERT J · 2010 to 2013
$1.7M
NIGMS NIH HHS R01 GM094919
6 · The paper itself

Abstract

N-linked glycans attached to specific amino acids of the gp120 envelope trimer of a HIV virion can modulate the binding affinity of gp120 to CD4, influence coreceptor tropism, and play an important role in neutralising antibody responses. Because of the challenges associated with crystallising fully glycosylated proteins, most structural investigations have focused on describing the features of a non-glycosylated HIV-1 gp120 protein. Here, we use a computational approach to determine the influence of N-linked glycans on the dynamics of the HIV-1 gp120 protein and, in particular, the V3 loop. We compare the conformational dynamics of a non-glycosylated gp120 structure to that of two glycosylated gp120 structures, one with a single, and a second with five, covalently linked high-mannose glycans. Our findings provide a clear illustration of the significant effect that N-linked glycosylation has on the temporal and spatial properties of the underlying protein structure. We find that glycans surrounding the V3 loop modulate its dynamics, conferring to the loop a marked propensity towards a more narrow conformation relative to its non-glycosylated counterpart. The conformational effect on the V3 loop provides further support for the suggestion that N-linked glycosylation plays a role in determining HIV-1 coreceptor tropism.

Indexed as

Models, MolecularGlycosylationHIV Envelope Protein gp120HumansMolecular Dynamics SimulationPeptide FragmentsPolysaccharidesProtein ConformationHIV Envelope Protein gp120HIV envelope protein gp120 (305-321)Peptide FragmentsPolysaccharides

Identifiers

PMID24303005
PMCPMC3841175
OpenAlexW2039881406

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.