Evidence map›Paper›PMID 25011072›Full record

ArticleACS chemical biology2014

Mitochondrial and ER-targeted eCALWY probes reveal high levels of free Zn2+.

Pauline Chabosseau, Erkan Tuncay, Gargi Meur, Elisa A Bellomo, Anne Hessels, Stephen Hughes, Paul R V Johnson, Marco Bugliani, Piero Marchetti, Belma Turan and 3 more

Abstract read
In one paragraph

Article in ACS chemical biology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers.

0numbers the graph read from it
0cells of the map it votes in
61citing 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

61 citing papers in PubMed.

  1. Review
  2. Article
  3. Review
  4. ZnT6-mediated ZnMolecular and cellular biochemistry · 2025
    Article
  5. Review
  6. Review
  7. Review
  8. Article
  9. Article
  10. Review
  11. Review
  12. Article
  13. Review
  14. Article
  15. Review
  16. Interplay between ZnInternational journal of molecular sciences · 2022
    Review
  17. Organelle-Level Labile ZnACS sensors · 2022
    Article
  18. Article
  19. Article
  20. Review

1 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

13 authors.

Pauline ChabosseauSection of Cell Biology, Division of Medicine, and ‡National Heart and Lung Institute, Imperial College London , London, United Kingdom.
Erkan Tuncay
Gargi Meur
Elisa A Bellomo
Anne Hessels
Stephen Hughes
Paul R V Johnson
Marco Bugliani
Piero Marchetti
Belma Turan
Alexander R Lyon
Maarten Merkx
Guy A Rutter

Funding

Biotechnology and Biological Sciences Research Council BB/J015873/1British Heart Foundation FS/11/67/28954European Research Council 280255Medical Research Council MR/J0003042/1Medical Research Council MR/K001981/1Wellcome Trust 098424Wellcome Trust WT098424AIA
6 · The paper itself

Abstract

Zinc (Zn2+) ions are increasingly recognized as playing an important role in cellular physiology. Whereas the free Zn2+ concentration in the cytosol has been established to be 0.1-1 nM, the free Zn2+ concentration in subcellular organelles is not well-established. Here, we extend the eCALWY family of genetically encoded Förster Resonance Energy Transfer (FRET) Zn2+ probes to permit measurements in the endo(sarco)plasmic reticulum (ER) and mitochondrial matrix. Deployed in a variety of mammalian cell types, these probes reveal resting mitochondrial free [Zn2+] values of ∼300 pM, somewhat lower than in the cytosol but 3 orders of magnitude higher than recently reported using an alternative FRET-based sensor. By contrast, free ER [Zn2+] was found to be ≥5 nM, which is >5000-fold higher than recently reported but consistent with the proposed role of the ER as a mobilizable Zn2+ store. Treatment of β-cells or cardiomyocytes with sarco(endo)plasmic reticulum Ca2+-ATPase inhibitors, mobilization of ER Ca2+ after purinergic stimulation with ATP, or manipulation of ER redox, exerted no detectable effects on [Zn2+]ER. These findings question the previously proposed role of Ca2+ in Zn2+ mobilization from the ER and suggest that high ER Zn2+ levels may be an important aspect of cellular homeostasis.

Indexed as

AnimalsBiosensing TechniquesCalciumCations, DivalentCells, CulturedCytosolEndoplasmic ReticulumFluorescence Resonance Energy TransferHeLa CellsHumansIndolesInsulin-Secreting CellsMice, Inbred C57BLMitochondriaMolecular ProbesMyocytes, CardiacCalciumCations, Divalentcyclopiazonic acidIndolesMolecular ProbesRecombinant ProteinsZinc

Identifiers

PMID25011072
PMCPMC6101202

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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.