Evidence map›Paper›PMID 21880734›Full record

ArticleThe Journal of biological chemistry2011

Local cytosolic Ca2+ elevations are required for stromal interaction molecule 1 (STIM1) de-oligomerization and termination of store-operated Ca2+ entry.

Wei-Wei Shen, Maud Frieden, Nicolas Demaurex

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.9field-weighted citation impact, top 10% 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

24 citing papers in PubMed, 41 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Diseases caused by mutations in ORAI1 and STIM1.Annals of the New York Academy of Sciences · 2015
    Review
  11. Store-Operated Calcium Channels.Physiological reviews · 2015
    Review
  12. Article
  13. Review
  14. Redox regulation of store-operated Ca2+ entry.Antioxidants & redox signaling · 2014
    Review
  15. Article
  16. Article
  17. Article
  18. Molecular regulation of CRAC channels and their role in lymphocyte function.Cellular and molecular life sciences : CMLS · 2013
    Review
  19. Article
  20. Orai-STIM-mediated Ca2+ release from secretory granules revealed by a targeted Ca2+ and pH probe.Proceedings of the National Academy of Sciences of the United States of America · 2012
    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 1 institution in 1 country.

Wei-Wei ShenDepartment of Cell Physiology and Metabolism, University of Geneva, rue Michel-Servet 1, CH-1211 Geneva 4, Switzerland.
Maud Frieden
Nicolas Demaurex
University of Geneva · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The Ca(2+) depletion of the endoplasmic reticulum (ER) activates the ubiquitous store-operated Ca(2+) entry (SOCE) pathway that sustains long-term Ca(2+) signals critical for cellular functions. ER Ca(2+) depletion initiates the oligomerization of stromal interaction molecules (STIM) that control SOCE activation, but whether ER Ca(2+) refilling controls STIM de-oligomerization and SOCE termination is not known. Here, we correlate the changes in free luminal ER Ca(2+) concentrations ([Ca(2+)](ER)) and in STIM1 oligomerization, using fluorescence resonance energy transfer (FRET) between CFP-STIM1 and YFP-STIM1. We observed that STIM1 de-oligomerized at much lower [Ca(2+)](ER) levels during store refilling than it oligomerized during store depletion. We then refilled ER stores without adding exogenous Ca(2+) using a membrane-permeable Ca(2+) chelator to provide a large reservoir of buffered Ca(2+). This procedure rapidly restored pre-stimulatory [Ca(2+)](ER) levels but did not trigger STIM1 de-oligomerization, the FRET signals remaining elevated as long as the external [Ca(2+)] remained low. STIM1 dissociation evoked by Ca(2+) readmission was prevented by SOC channel inhibition and was associated with cytosolic Ca(2+) elevations restricted to STIM1 puncta, indicating that Ca(2+) acts on a cytosolic target close to STIM1 clusters. These data indicate that the refilling of ER Ca(2+) stores is not sufficient to induce STIM1 de-oligomerization and that localized Ca(2+) elevations in the vicinity of assembled SOCE complexes are required for the termination of SOCE.

Indexed as

CalciumChelating AgentsEndoplasmic ReticulumFluorescence Resonance Energy TransferHeLa CellsHumansMembrane ProteinsNeoplasm ProteinsProtein MultimerizationStromal Interaction Molecule 1CalciumChelating AgentsMembrane ProteinsNeoplasm ProteinsSTIM1 protein, humanStromal Interaction Molecule 1

Identifiers

PMID21880734
PMCPMC3196111
OpenAlexW2092687176

What OpenQuestion holds

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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.