Evidence map›Paper›PMID 12771127›Full record

ArticleThe Journal of cell biology2003

Kinetic analysis of receptor-activated phosphoinositide turnover.

Chang Xu, James Watras, Leslie M Loew

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of cell biology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 105 papers.

0numbers the graph read from it
0cells of the map it votes in
105citing papers in PubMed
4.5field-weighted citation impact, top 5% 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

105 citing papers in PubMed, 194 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Nanoscale Phosphoinositide Distribution on Cell Membranes of Mouse Cerebellar Neurons.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023
    Article
  6. Article
  7. PI(4,5)P2: signaling the plasma membrane.The Biochemical journal · 2022
    Article
  8. Article
  9. Design principles of PI(4,5)PProceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

45 more citing papers are in PubMed but not listed here.

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.

Chang XuDepartment of Physiology, University of Connecticut Health Center, Farmington, CT 06030, USA.
James Watras
Leslie M Loew
UConn Health · US

Funding

VIRTUAL FCSP41RR013186 · NCRR · UNIVERSITY OF CONNECTICUT SCH OF MED/DNT · PI LOEW, LESLIE M · 1998 to 2011
$14.2M
POTENTIOMETRIC DYES AND MEMBRANE PERMEABILITYR01GM035063 · NIGMS · UNIVERSITY OF CONNECTICUT SCH OF MED/DNT · PI LOEW, LESLIE M · 1985 to 2002
$795k
ENDOGENOUS INHIBITOR OF NEURONAL INSP3-GATED CHANNELSR01NS040158 · NINDS · UNIVERSITY OF CONNECTICUT SCH OF MED/DNT · PI WATRAS, JAMES M · 2000 to 2002
$731k
NCRR NIH HHS P41 RR013186NCRR NIH HHS RR13186NIGMS NIH HHS GM35063NINDS NIH HHS NS40158
6 · The paper itself

Abstract

We studied the bradykinin-induced changes in phosphoinositide composition of N1E-115 neuroblastoma cells using a combination of biochemistry, microscope imaging, and mathematical modeling. Phosphatidylinositol-4,5-bisphosphate (PIP2) decreased over the first 30 s, and then recovered over the following 2-3 min. However, the rate and amount of inositol-1,4,5-trisphosphate (InsP3) production were much greater than the rate or amount of PIP2 decline. A mathematical model of phosphoinositide turnover based on this data predicted that PIP2 synthesis is also stimulated by bradykinin, causing an early transient increase in its concentration. This was subsequently confirmed experimentally. Then, we used single-cell microscopy to further examine phosphoinositide turnover by following the translocation of the pleckstrin homology domain of PLCdelta1 fused to green fluorescent protein (PH-GFP). The observed time course could be simulated by incorporating binding of PIP2 and InsP3 to PH-GFP into the model that had been used to analyze the biochemistry. Furthermore, this analysis could help to resolve a controversy over whether the translocation of PH-GFP from membrane to cytosol is due to a decrease in PIP2 on the membrane or an increase in InsP3 in cytosol; by computationally clamping the concentrations of each of these compounds, the model shows how both contribute to the dynamics of probe translocation.

Indexed as

BradykininCell MembraneComputer SimulationGreen Fluorescent ProteinsKineticsLuminescent ProteinsMicroscopy, ConfocalNeuroblastomaPhosphatidylinositolsReceptors, BradykininTumor Cells, CulturedBradykininGreen Fluorescent ProteinsLuminescent ProteinsPhosphatidylinositolsReceptors, Bradykinin

Identifiers

PMID12771127
PMCPMC2199375
OpenAlexW2139126967

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.