Evidence map›Paper›PMID 18723502›Full record

ArticleThe Journal of biological chemistry2008

Compartmentalization of phosphatidylinositol 4,5-bisphosphate signaling evidenced using targeted phosphatases.

Corey M Johnson, Gurunadh R Chichili, William Rodgers

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
1.9field-weighted citation impact, top 16% 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

43 citing papers in PubMed, 74 citations in OpenAlex.

  1. Article
  2. Article
  3. Roles of Cholesterol and PtdIns(4,5)PAdvances in experimental medicine and biology · 2023
    Review
  4. Article
  5. Inducible depletion of PI(4,5)PNature plants · 2021
    Article
  6. Compartmentalization of phosphatidylinositol 4,5-bisphosphate metabolism into plasma membrane liquid-ordered/raft domains.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  7. Striking a balance: PIPExploration of neuroprotective therapy · 2021
    Article
  8. Roles of Membrane Domains in Integrin-Mediated Cell Adhesion.International journal of molecular sciences · 2020
    Review
  9. Article
  10. The Cell Biology of Tau Secretion.Frontiers in molecular neuroscience · 2020
    Review
  11. Article
  12. Article
  13. Article
  14. Annexins as Overlooked Regulators of Membrane Trafficking in Plant Cells.International journal of molecular sciences · 2017
    Review
  15. Fission yeast myosin I facilitates PI(4,5)PProceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  16. Article
  17. Review
  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

3 authors at 3 institutions in 1 country.

Corey M JohnsonCardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma 73104, USA.
Gurunadh R Chichili
William Rodgers
Oklahoma Heart Hospital · USOklahoma Medical Research Foundation · USUniversity of Oklahoma Health Sciences Center · US

Funding

GEM Domains and T cell signalingR01GM070001 · NIGMS · OKLAHOMA MEDICAL RESEARCH FOUNDATION · PI RODGERS, WILLIAM A · 2003 to 2007
$1.3M
NIGMS NIH HHS R01 GM070001
6 · The paper itself

Abstract

Phosphatidylinositol 4,5-bisphosphate (PIP(2)) is a prevalent phosphoinositide in cell membranes, with important functions in cell signaling and activation. A large fraction of PIP(2) associates with the detergent-resistant membrane "raft" fraction, but the functional significance of this association remains controversial. To measure the properties of raft and nonraft PIP(2) in cell signaling, we targeted the PIP(2)-specific phosphatase Inp54p to either the raft or nonraft membrane fraction using minimal membrane anchors. Interestingly, we observed that targeting Inp54p to the nonraft fraction resulted in an enrichment of raft-associated PIP(2) and striking changes in cell morphology, including a wortmannin-sensitive increase in cell filopodia and cell spreading. In contrast, raft-targeted Inp54p depleted the raft pool of PIP(2) and produced smooth T cells void of membrane ruffling and filopodia. Furthermore, raft-targeted Inp54p inhibited capping in T cells stimulated by cross-linking the T cell receptor, but without affecting the T cell receptor-dependent Ca(2+) flux. Altogether, these results provide evidence of compartmentalization of PIP(2)-dependent signaling in cell membranes such as predicted by the membrane raft model.

Indexed as

AndrostadienesCalciumCell LineCell MembraneDetergentsEnzyme InhibitorsGene Expression RegulationHumansMembrane MicrodomainsModels, BiologicalModels, GeneticPhosphatidylinositol 4,5-DiphosphatePhosphoric Monoester HydrolasesSignal TransductionT-LymphocytesWortmanninAndrostadienesCalciumDetergentsEnzyme InhibitorsPhosphatidylinositol 4,5-DiphosphatePhosphoric Monoester HydrolasesWortmannin

Identifiers

PMID18723502
PMCPMC2573053
OpenAlexW2089003221

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.