Evidence map›Paper›PMID 26396197›Full record

ArticleThe Journal of biological chemistry2015

Nanoscale Landscape of Phosphoinositides Revealed by Specific Pleckstrin Homology (PH) Domains Using Single-molecule Superresolution Imaging in the Plasma Membrane.

Chen Ji, Yongdeng Zhang, Pingyong Xu, Tao Xu, Xuelin Lou

Abstract read
In one paragraph

Article in The Journal of biological chemistry, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
–field-weighted citation impact
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

30 citing papers in PubMed.

  1. Distinct impact of PI(4)P flux on PI(4,5)PProceedings of the National Academy of Sciences of the United States of America · 2026
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  5. Review
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  7. PI(4,5)P2: signaling the plasma membrane.The Biochemical journal · 2022
    Article
  8. Article
  9. Article
  10. Dynamin deficiency causes insulin secretion failure and hyperglycemia.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  11. Article
  12. 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
  13. Review
  14. Article
  15. Review
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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

5 authors.

Chen JiDepartment of Neuroscience, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin 53705 and.
Yongdeng Zhangthe National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China.
Pingyong Xuthe National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China.
Tao Xuthe National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China.
Xuelin LouDepartment of Neuroscience, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin 53705 and. Electronic address: xlou3@wisc.edu.

Funding

Regulated exocytosis and endocytosis coupling in pancreatic endocrine cellsR01DK093953 · NIDDK · UNIVERSITY OF WISCONSIN-MADISON · PI LOU, XUELIN · 2011 to 2015
$1.6M
Assistant Professor of Physiology in Synaptic FunctionP30NS069271 · NINDS · UNIVERSITY OF WISCONSIN-MADISON · PI JACKSON, MEYER B. · 2009 to 2010
$1.3M
NIDDK NIH HHS R01 DK093953NIDDK NIH HHS R01DK093953NINDS NIH HHS P30 NS069271NINDS NIH HHS P30NS069271
6 · The paper itself

Abstract

Both phosphatidylinositol 4-phosphate (PI4P) and phosphatidylinositol 4,5-bisphosphate (PI(4,5)P2) are independent plasma membrane (PM) determinant lipids that are essential for multiple cellular functions. However, their nanoscale spatial organization in the PM remains elusive. Using single-molecule superresolution microscopy and new photoactivatable fluorescence probes on the basis of pleckstrin homology domains that specifically recognize phosphatidylinositides in insulin-secreting INS-1 cells, we report that the PI(4,5)P2 probes exhibited a remarkably uniform distribution in the major regions of the PM, with some sparse PI(4,5)P2-enriched membrane patches/domains of diverse sizes (383 ± 14 nm on average). Quantitative analysis revealed a modest concentration gradient that was much less steep than previously thought, and no densely packed PI(4,5)P2 nanodomains were observed. Live-cell superresolution imaging further demonstrated the dynamic structural changes of those domains in the flat PM and membrane protrusions. PI4P and phosphatidylinositol (3,4,5)-trisphosphate (PI(3,4,5)P3) showed similar spatial distributions as PI(4,5)P2. These data reveal the nanoscale landscape of key inositol phospholipids in the native PM and imply a framework for local cellular signaling and lipid-protein interactions at a nanometer scale.

Indexed as

AnimalsCell LineCell MembraneChlorocebus aethiopsCOS CellsInsulin-Secreting CellsLuminescent ProteinsMembrane ProteinsMicrotubulesNanotechnologyPhosphatidylinositol 4,5-DiphosphatePhosphatidylinositol PhosphatesPhosphatidylinositolsProtein Structure, TertiaryRatsSignal TransductionLuminescent ProteinsMembrane Proteinsphosphatidylinositol 3,4,5-triphosphatePhosphatidylinositol 4,5-Diphosphatephosphatidylinositol 4-phosphatePhosphatidylinositol PhosphatesPhosphatidylinositolsStx1a protein, ratSyntaxin 1inositol phospholipidmembrane lipidmetabolismphosphatidylinositolSNARE proteinssuperresolution microscopyβ cell (B cell)

Identifiers

PMID26396197
PMCPMC4646391

What OpenQuestion holds

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Registered trials

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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.