Evidence map›Paper›PMID 31757809›Full record

ArticleThe Journal of biological chemistry2020

The lipid membrane of HIV-1 stabilizes the viral envelope glycoproteins and modulates their sensitivity to antibody neutralization.

Hamid Salimi, Jacklyn Johnson, Manuel G Flores, Michael S Zhang, Yunxia O'Malley, Jon C Houtman, Patrick M Schlievert, Hillel Haim

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
4.8field-weighted citation impact, top 4% 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

41 citing papers in PubMed, 63 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  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

8 authors at 1 institution in 1 country.

Hamid SalimiDepartment of Microbiology and Immunology, Carver College of Medicine, University of Iowa, Iowa City, Iowa 52242.
Jacklyn JohnsonDepartment of Microbiology and Immunology, Carver College of Medicine, University of Iowa, Iowa City, Iowa 52242.
Manuel G FloresDepartment of Microbiology and Immunology, Carver College of Medicine, University of Iowa, Iowa City, Iowa 52242.
Michael S ZhangDepartment of Microbiology and Immunology, Carver College of Medicine, University of Iowa, Iowa City, Iowa 52242.
Yunxia O'MalleyDepartment of Microbiology and Immunology, Carver College of Medicine, University of Iowa, Iowa City, Iowa 52242.
Jon C HoutmanDepartment of Microbiology and Immunology, Carver College of Medicine, University of Iowa, Iowa City, Iowa 52242.
Patrick M SchlievertDepartment of Microbiology and Immunology, Carver College of Medicine, University of Iowa, Iowa City, Iowa 52242.
Hillel HaimDepartment of Microbiology and Immunology, Carver College of Medicine, University of Iowa, Iowa City, Iowa 52242. Electronic address: Hillel-haim@uiowa.edu.
University of Iowa · US

Funding

MEDICAL SCIENTIST TRAINING PROGRAMT32GM007337 · NIGMS · UNIVERSITY OF IOWA · PI GEYER, PAMELA K., LENTZ, STEVEN R · 1985 to 2020
$15.9M
Training in Molecular Virology, Viral Pathogenesis and Viral VectorsT32AI007533 · NIAID · UNIVERSITY OF IOWA · PI Stanley Perlman · 1998 to 2026
$2.5M
Iowa Post-Baccalaureate Research Education in the Biomedical SciencesR25GM116686 · NIGMS · UNIVERSITY OF IOWA · PI DOKUN, AYOTUNDE OLUROPO, WRIGHT, MICHAEL E · 2016 to 2020
$1.2M
NIAID NIH HHS T32 AI007533NIGMS NIH HHS R25 GM116686NIGMS NIH HHS T32 GM007337
6 · The paper itself

Abstract

The envelope glycoproteins (Envs) of HIV-1 are embedded in the cholesterol-rich lipid membrane of the virus. Chemical depletion of cholesterol from HIV-1 particles inactivates their infectivity. We observed that diverse HIV-1 strains exhibit a range of sensitivities to such treatment. Differences in sensitivity to cholesterol depletion could not be explained by variation in Env components known to interact with cholesterol, including the cholesterol-recognition motif and cytoplasmic tail of gp41. Using antibody-binding assays, measurements of virus infectivity, and analyses of lipid membrane order, we found that depletion of cholesterol from HIV-1 particles decreases the conformational stability of Env. It enhances exposure of partially cryptic epitopes on the trimer and increases sensitivity to structure-perturbing treatments such as antibodies and cold denaturation. Substitutions in the cholesterol-interacting motif of gp41 induced similar effects as depletion of cholesterol. Surface-acting agents, which are incorporated into the virus lipid membrane, caused similar effects as disruption of the Env-cholesterol interaction. Furthermore, substitutions in gp120 that increased structural stability of Env (

Indexed as

Antibodies, NeutralizingCholesterolenv Gene Products, Human Immunodeficiency VirusHEK293 CellsHIV-1HIV AntibodiesHIV InfectionsHumansMembrane MicrodomainsProtein StabilityVirus InternalizationAntibodies, NeutralizingCholesterolenv Gene Products, Human Immunodeficiency VirusHIV Antibodiesantibodycholesterolenvelope glycoproteinshuman immunodeficiency virus (HIV)lipid raftmembrane lipidprotein conformationprotein stabilitysurface-acting agentvaccine developmentvirus entry

Identifiers

PMID31757809
PMCPMC6956520
OpenAlexW2990462478

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.