Evidence map›Paper›PMID 21753190›Full record

ArticleMolecular & cellular proteomics : MCP2011

Differential impact of caveolae and caveolin-1 scaffolds on the membrane raft proteome.

Yu Zi Zheng, Cecile Boscher, Kerry L Inder, Maria Fairbank, Dorothy Loo, Michelle M Hill, Ivan R Nabi, Leonard J Foster

Open access · hybridAbstract read
In one paragraph

Article in Molecular & cellular proteomics : MCP, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
5.6field-weighted citation impact, top 3% 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

23 citing papers in PubMed, 85 citations in OpenAlex.

  1. The machinery of healthy vasodilatation: an overview.Pflugers Archiv : European journal of physiology · 2025
    Review
  2. Article
  3. Review
  4. Review
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Matrix Rigidity-Dependent Regulation of CaAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2019
    Article
  12. Article
  13. Caveolin-1 Influences LFA-1 Redistribution upon TCR Stimulation in CD8 T Cells.Journal of immunology (Baltimore, Md. : 1950) · 2017
    Article
  14. Article
  15. Article
  16. P-glycoprotein traffics from the nucleus to the plasma membrane in rat brain endothelium during inflammatory pain.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2016
    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 2 institutions in 2 countries.

Yu Zi ZhengCentre for High-Throughput Biology and Department of Biochemistry and Molecular Biology, 2125 East Mall, University of British Columbia, Vancouver, BC, Canada.
Cecile Boscher
Kerry L Inder
Maria Fairbank
Dorothy Loo
Michelle M Hill
Ivan R Nabi
Leonard J Foster
University of British Columbia · CAThe University of Queensland · AU

Funding

Canadian Institutes of Health Research MOP-43938Canadian Institutes of Health Research MOP-77688
6 · The paper itself

Abstract

Caveolae, a class of cholesterol-rich lipid rafts, are smooth invaginations of the plasma membrane whose formation in nonmuscle cells requires caveolin-1 (Cav1). The recent demonstration that Cav1-associated cavin proteins, in particular PTRF/cavin-1, are also required for caveolae formation supports a functional role for Cav1 independently of caveolae. In tumor cells deficient for Golgi β-1,6N-acetylglucosaminyltransferase V (Mgat5), reduced Cav1 expression is associated not with caveolae but with oligomerized Cav1 domains, or scaffolds, that functionally regulate receptor signaling and raft-dependent endocytosis. Using subdiffraction-limit microscopy, we show that Cav1 scaffolds are homogenous subdiffraction-limit sized structures whose size distribution differs from that of Cav1 in caveolae expressing cells. These cell lines displaying differing Cav1/caveolae phenotypes are effective tools for probing the structure and composition of caveolae. Using stable isotope labeling by amino acids in cell culture, we are able to quantitatively distinguish the composition of caveolae from the background of detergent-resistant membrane proteins and show that the presence of caveolae enriches the protein composition of detergent-resistant membrane, including the recruitment of multiple heterotrimeric G-protein subunits. These data were further supported by analysis of immuno-isolated Cav1 domains and of methyl-β-cyclodextrin-disrupted detergent-resistant membrane. Our data show that loss of caveolae results in a dramatic change to the membrane raft proteome and that this change is independent of Cav1 expression. The proteomics data, in combination with subdiffraction-limit microscopy, indicates that noncaveolar Cav1 domains, or scaffolds are structurally and functionally distinct from caveolae and differentially impact on the molecular composition of lipid rafts.

Indexed as

AnimalsCaveolaeCaveolin 1Cell Line, TumorEndocytosisGolgi ApparatusIsotope LabelingMembrane MicrodomainsMembrane ProteinsMiceN-AcetylglucosaminyltransferasesNuclear MatrixProtein Structure, TertiaryProteomeRNA-Binding Proteinsalpha-1,6-mannosylglycoprotein beta 1,6-N-acetylglucosaminyltransferaseCaveolin 1Cavin1 protein, mouseMembrane ProteinsN-AcetylglucosaminyltransferasesProteomeRNA-Binding Proteins

Identifiers

PMID21753190
PMCPMC3205860
OpenAlexW2082062345

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.