Evidence map›Paper›PMID 17150237›Full record

ArticleVirology2007

Cholesterol is critical for Epstein-Barr virus latent membrane protein 2A trafficking and protein stability.

Masato Ikeda, Richard Longnecker

Abstract read
In one paragraph

Article in Virology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
0.9field-weighted citation impact, top 26% 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

44 citing papers in PubMed, 69 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Review
  5. Intercellular Transport of Viral Proteins.Results and problems in cell differentiation · 2024
    Review
  6. Review
  7. Article
  8. Review
  9. Article
  10. Review
  11. Review
  12. Review
  13. Review
  14. Review
  15. Article
  16. Article
  17. TemporalACS omega · 2020
    Article
  18. Review
  19. Review
  20. Extracellular Vesicles in Epstein-Barr Virus Pathogenesis.Current clinical microbiology reports · 2019
    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

2 authors at 1 institution in 1 country.

Masato IkedaDepartment of Microbiology-Immunology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA.
Richard Longnecker
Northwestern University · US

Funding

In Vivo Model of Epstein-Barr Virus LatencyR01CA073507 · NCI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI LONGNECKER, RICHARD M · 1997 to 2018
$6.1M
EBV LATENT MEMBRANE PROTEIN 2R01CA062234 · NCI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI LONGNECKER, RICHARD M · 1994 to 2007
$2.2M
NCI NIH HHS CA62234NCI NIH HHS CA73507NCI NIH HHS R01 CA062234NCI NIH HHS R01 CA073507
6 · The paper itself

Abstract

Latent membrane protein 2A (LMP2A) of Epstein-Barr virus (EBV) plays a key role in regulating viral latency and EBV pathogenesis by functionally mimicking signals induced by the B cell receptor (BCR) altering normal B cell development. LMP2A specifically associates with Nedd4 family ubiquitin-protein ligases which downmodulate LMP2A activity by ubiquitinating LMP2A and LMP2A-associated protein tyrosine kinases (PTKs). Since specific ubiquitin tags provide an endocytic sorting signal for plasma membrane proteins which traffic to membrane vesicles, we examined LMP2A localization and trafficking. We found that LMP2A is secreted through exosomes, small endocytic membrane vesicles, as previously demonstrated for LMP1. Interestingly, the treatment of cells with methyl-beta-cyclodextrin (MCD), which depletes cholesterol from plasma membrane, dramatically increased LMP2A abundance and LMP2A exosome secretion. Cholesterol depletion also blocked LMP2A endocytosis resulting in the accumulation of LMP2A on plasma membrane. LMP2A phosphorylation and ubiquitination were blocked by cholesterol depletion. LMP2A in the exosomal fraction was ubiquitinated but not phosphorylated. These results indicate that cholesterol-dependent LMP2A trafficking determines the fate of LMP2A degradation.

Indexed as

Protein Transportbeta-CyclodextrinsCell LineCell MembraneCholesterolHerpesvirus 4, HumanHumansImmunoblottingImmunoprecipitationMicroscopy, FluorescenceModels, BiologicalPhosphorylationTransport VesiclesUbiquitinViral Matrix Proteinsbeta-CyclodextrinsCholesterolEBV-associated membrane antigen, Epstein-Barr virusmethyl-beta-cyclodextrinUbiquitinViral Matrix Proteins

Identifiers

PMID17150237
PMCPMC1868700
OpenAlexW1997776046

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.