Evidence map›Paper›PMID 22778402›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2012

Chemotactic signaling via carbohydrate phosphotransferase systems in Escherichia coli.

Silke Neumann, Karin Grosse, Victor Sourjik

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing 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

38 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Identification of a dCache-type chemoreceptor inFrontiers in microbiology · 2024
    Article
  6. Article
  7. Article
  8. Article
  9. Glucose Transport inMicroorganisms · 2023
    Review
  10. Article
  11. Review
  12. Review
  13. A traveling-wave solution for bacterial chemotaxis with growth.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  14. Review
  15. Article
  16. Article
  17. ThemSystems · 2021
    Article
  18. Article
  19. A Multi-Scale Approach to ModelingEntropy (Basel, Switzerland) · 2020
    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

3 authors.

Silke NeumannZentrum für Molekulare Biologie der Universität Heidelberg, DKFZ-ZMBH Alliance, 69120 Heidelberg, Germany.
Karin Grosse
Victor Sourjik

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Chemotaxis allows bacteria to follow gradients of nutrients, environmental stimuli, and signaling molecules, optimizing bacterial growth and survival. Escherichia coli has long served as a model of bacterial chemotaxis, and the signal processing by the core of its chemotaxis pathway is well understood. However, most of the research so far has focused on one branch of chemotactic signaling, in which ligands bind to periplasmic sensory domains of transmembrane chemoreceptors and induce a conformational change that is transduced across the membrane to regulate activity of the receptor-associated kinase CheA. Here we quantitatively characterize another, receptor-independent branch of chemotactic signaling that is linked to the sugar uptake through a large family of phosphotransferase systems (PTSs). Using in vivo characterization of intracellular signaling and protein interactions, we demonstrate that signals from cytoplasmic PTS components are transmitted directly to the sensory complexes formed by chemoreceptors, CheA and an adapter protein CheW. We further conclude that despite different modes of sensing, the PTS- and receptor-mediated signals have similar regulatory effects on the conformation of the sensory complexes. As a consequence, both types of signals become integrated and undergo common downstream processing including methylation-dependent adaptation. We propose that such mode of signaling is essential for efficient chemotaxis to PTS substrates and may be common to most bacteria.

Indexed as

Bacterial ProteinsCarbohydrate MetabolismChemotaxisEscherichia coliEscherichia coli ProteinsFluorescence Resonance Energy TransferHistidine KinaseImmunoblottingMembrane ProteinsMethyl-Accepting Chemotaxis ProteinsModels, BiologicalPhosphotransferasesSignal TransductionBacterial ProteinscheA protein, E coliCheW protein, E coliEscherichia coli ProteinsHistidine KinaseMembrane ProteinsMethyl-Accepting Chemotaxis ProteinsPhosphotransferases

Identifiers

PMID22778402
PMCPMC3409764

What OpenQuestion holds

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Read underepoch 390

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.