Evidence map›Paper›PMID 34253054›Full record

ArticlemBio2021

Active Efflux Leads to Heterogeneous Dissipation of Proton Motive Force by Protonophores in Bacteria.

Dai Le, Ekaterina Krasnopeeva, Faris Sinjab, Teuta Pilizota, Minsu Kim

Open access · goldAbstract read
In one paragraph

Article in mBio, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
8.7field-weighted citation impact, top 2% 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

33 citing papers in PubMed, 72 citations in OpenAlex.

  1. Article
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  8. When Disinfection Fails: Biocide Tolerance as a Driver ofAntibiotics (Basel, Switzerland) · 2026
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  15. Article
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  17. Article
  18. Bacterial persisters: molecular mechanisms and therapeutic development.Signal transduction and targeted therapy · 2024
    Review
  19. Article
  20. Fingolimod synergizes and reversesFrontiers in microbiology · 2024
    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

5 authors at 2 institutions in 2 countries.

Dai LeDepartment of Physics, Emory University, Atlanta, Georgia, USA.
Ekaterina Krasnopeeva *Centre for Synthetic and Systems Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, United Kingdom.
Faris Sinjab *Centre for Synthetic and Systems Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, United Kingdom.
Teuta PilizotaCentre for Synthetic and Systems Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, United Kingdom.
Minsu KimDepartment of Physics, Emory University, Atlanta, Georgia, USA.
University of Edinburgh · GBEmory University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Various toxic compounds disrupt bacterial physiology. While bacteria harbor defense mechanisms to mitigate the toxicity, these mechanisms are often coupled to the physiological state of the cells and become ineffective when the physiology is severely disrupted. Here, we characterized such feedback by exposing Escherichia coli to protonophores. Protonophores dissipate the proton motive force (PMF), a fundamental force that drives physiological functions. We found that E. coli cells responded to protonophores heterogeneously, resulting in bimodal distributions of cell growth, substrate transport, and motility. Furthermore, we showed that this heterogeneous response required active efflux systems. The analysis of underlying interactions indicated the heterogeneous response results from efflux-mediated positive feedback between PMF and protonophores' action. Our studies have broad implications for bacterial adaptation to stress, including antibiotics.

Indexed as

Proton-Motive ForceBiological TransportCarbonyl Cyanide m-Chlorophenyl HydrazoneEscherichia coliEscherichia coli ProteinsProton IonophoresCarbonyl Cyanide m-Chlorophenyl HydrazoneEscherichia coli ProteinsProton Ionophoresbacterial physiologycell-to-cell heterogeneityefflux pumpsproton motive forceprotonophoresingle-cell microscopy

Identifiers

PMID34253054
PMCPMC8406135
OpenAlexW3179392191

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.