Evidence map›Paper›PMID 15113929›Full record

ArticleJournal of virology2004

Human immunodeficiency virus type 1 envelope glycoproteins that lack cytoplasmic domain cysteines: impact on association with membrane lipid rafts and incorporation onto budding virus particles.

Jayanta Bhattacharya, Paul J Peters, Paul R Clapham

Abstract read
In one paragraph

Article in Journal of virology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers.

0numbers the graph read from it
0cells of the map it votes in
58citing papers in PubMed
2.6field-weighted citation impact, top 9% 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

58 citing papers in PubMed, 90 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Membrane Heterogeneity Beyond the Plasma Membrane.Frontiers in cell and developmental biology · 2020
    Review
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Review
  16. The cytoplasmic tail of retroviral envelope glycoproteins.Progress in molecular biology and translational science · 2015
    Review
  17. Article
  18. Review
  19. Review
  20. Review
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

3 authors at 1 institution in 1 country.

Jayanta BhattacharyaProgram in Molecular Medicine and Department of Molecular Genetics and Microbiology, University of Massachusetts Medical School, Biotech 2, 373 Plantation Street, Worcester, MA 01605, USA.
Paul J Peters
Paul R Clapham
University of Massachusetts Chan Medical School · US

Funding

HIV-1 tropism neuropathogenesis and therapyR01MH064408 · NIMH · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI CLAPHAM, PAUL R · 2001 to 2011
$3.5M
NIMH NIH HHS R01 MH064408NIMH NIH HHS R01 MH 64408-01
6 · The paper itself

Abstract

The human immunodeficiency virus type 1 (HIV-1) envelope comprises a surface gp120 and a transmembrane gp41. The cytoplasmic domain of gp41 contains cysteine residues (C764 and C837) which are targets for palmitoylation and were reported to be required for envelope association with lipid rafts and assembly on budding virions (I. Rousso, M. B. Mixon, B. K. Chen, and P. S. Kim, Proc. Natl. Acad. Sci. USA 97:13523-13525, 2000). Several infectious HIV-1 clones contain envelopes that have no gp41 cytoplasmic cysteines. Since no other gp41 amino acid is a target for palmitoylation, these clones imply that palmitoylation is not essential for envelope trafficking and assembly. Here, we show that HIV-1 envelope mutants that lack gp41 cytoplasmic cysteines are excluded from light lipid rafts. Envelopes that contained residues with bulky hydrophobic side chains instead of cysteines retained their association with heavy rafts and were nearly fully functional for incorporation into virions and infectivity. Substitution of cysteines with alanines or serines eliminated raft association and more severely reduced envelope incorporation onto virions and their infectivity. Nevertheless, the A764/A837 mutant envelope retained nearly 40% infectivity compared to the wild type, even though this envelope was excluded from lipid rafts. Our results demonstrate that gp41 cytoplasmic cysteines that are targets for palmitoylation and are required for envelope trafficking to classical lipid rafts are not essential for HIV-1 replication.

Indexed as

CysteineCytoplasmHIV-1HIV Envelope Protein gp41Membrane MicrodomainsMutationStructure-Activity RelationshipVirionCysteineHIV Envelope Protein gp41

Identifiers

PMID15113929
PMCPMC400338
OpenAlexW2124720829

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.