Evidence map›Paper›PMID 14710192›Full record

ArticleEMBO reports2004

A mechanism for the activation of the Na/H exchanger NHE-1 by cytoplasmic acidification and mitogens.

Jérôme Lacroix, Mallorie Poët, Céline Maehrel, Laurent Counillon

Open access · greenAbstract read
In one paragraph

Article in EMBO reports, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
1.8field-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

36 citing papers in PubMed, 92 citations in OpenAlex.

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  2. Mechanisms Underlying Altitude-Induced and Group 3 Pulmonary Hypertension.International journal of molecular sciences · 2026
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  7. How Does Our Knowledge on the NaFrontiers in physiology · 2022
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  8. Dynamic NaeLife · 2021
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  12. NaThe Journal of physiology · 2019
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  16. Article
  17. Article
  18. Article
  19. Cell cycle progression is regulated by intertwined redox oscillators.Theoretical biology & medical modelling · 2015
    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

4 authors at 2 institutions in 1 country.

Jérôme LacroixLaboratoire de Physiologie Cellulaire et Moléculaire, Faculté des Sciences, Université de Nice-Sophia Antipolis, CNRS UMR 6548, Parc Valrose, 06108 Nice cedex 2, France.
Mallorie Poët
Céline Maehrel
Laurent Counillon
Centre National de la Recherche Scientifique · FRLaboratoire de physiologie cellulaire et moléculaire

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Eukaryotic cells constantly have to fight against internal acidification. In mammals, this task is mainly performed by the ubiquitously expressed electroneutral Na(+)/H(+) exchanger NHE-1, which activates in a cooperative manner when cells become acidic. Despite its biological importance, the mechanism of this activation is still poorly understood, the most commonly accepted hypothesis being the existence of a proton-sensor site on the internal face of the transporter. This work uncovers mutations that lead to a nonallosteric form of the exchanger and demonstrates that NHE-1 activation is best described by a Monod-Wyman-Changeux concerted mechanism for a dimeric transporter. During intracellular acidification, a low-affinity form of NHE-1 is converted into a form possessing a higher affinity for intracellular protons, with no requirement for an additional proton-sensor site on the protein. This new mechanism also explains the activation of the exchanger by growth signals, which shift the equilibrium towards the high-affinity form.

Indexed as

Base SequenceCells, CulturedCulture Media, Serum-FreeCytosolGrowth SubstancesHumansHydrogen-Ion ConcentrationKineticsModels, TheoreticalMolecular Sequence DataMutagenesis, Site-DirectedMutationSodium-Hydrogen ExchangersTransfectionCulture Media, Serum-Freegrowth factor-activatable Na-H exchanger NHE-1Growth SubstancesSodium-Hydrogen Exchangers

Identifiers

PMID14710192
PMCPMC1298952
OpenAlexW2136138034

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.