Evidence map›Paper›PMID 20834231›Full record

ArticleThe EMBO journal2010

Differences in signalling by directly and indirectly binding ligands in bacterial chemotaxis.

Silke Neumann, Clinton H Hansen, Ned S Wingreen, Victor Sourjik

Abstract read
In one paragraph

Article in The EMBO journal, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing 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

50 citing papers in PubMed.

  1. Article
  2. Response ofMicrobiology spectrum · 2025
    Article
  3. Role of a single MCP in evolutionary adaptation ofApplied and environmental microbiology · 2025
    Article
  4. Review
  5. Article
  6. Article
  7. Direct measurement of dynamic attractant gradients reveals breakdown of the Patlak-Keller-Segel chemotaxis model.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  8. Article
  9. Discovery of a New Chemoeffector forACS bio & med chem Au · 2022
    Article
  10. The ecological roles of bacterial chemotaxis.Nature reviews. Microbiology · 2022
    Review
  11. Article
  12. Grounding cognition: heterarchical control mechanisms in biology.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2021
    Article
  13. The role of solute binding proteins in signal transduction.Computational and structural biotechnology journal · 2021
    Review
  14. Escape band inProceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors.

Silke NeumannZentrum für Molekulare Biologie der Universität Heidelberg, DKFZ-ZMBH Alliance, Heidelberg, Germany.
Clinton H Hansen
Ned S Wingreen
Victor Sourjik

Funding

Thermally robust chemotaxis and thermotaxis in Escherichia coliR01GM082938 · NIGMS · PRINCETON UNIVERSITY · PI WINGREEN, NED S · 2008 to 2025
$5.5M
NIGMS NIH HHS R01 GM082938
6 · The paper itself

Abstract

In chemotaxis of Escherichia coli and other bacteria, extracellular stimuli are perceived by transmembrane receptors that bind their ligands either directly, or indirectly through periplasmic-binding proteins (BPs). As BPs are also involved in ligand uptake, they provide a link between chemotaxis and nutrient utilization by cells. However, signalling by indirectly binding ligands remains much less understood than signalling by directly binding ligands. Here, we compared intracellular responses mediated by both types of ligands and developed a new mathematical model for signalling by indirectly binding ligands. We show that indirect binding allows cells to better control sensitivity to specific ligands in response to their nutrient environment and to coordinate chemotaxis with ligand transport, but at the cost of the dynamic range being much narrower than for directly binding ligands. We further demonstrate that signal integration by the chemosensory complexes does not depend on the type of ligand. Overall, our data suggest that the distinction between signalling by directly and indirectly binding ligands is more physiologically important than the traditional distinction between high- and low-abundance receptors.

Indexed as

LigandsBacterial ProteinsChemotactic FactorsChemotaxisDose-Response Relationship, DrugEscherichia coliEscherichia coli ProteinsHumansMembrane ProteinsMethyl-Accepting Chemotaxis ProteinsModels, TheoreticalSignal TransductionBacterial ProteinsChemotactic FactorsEscherichia coli ProteinsLigandsMembrane ProteinsMethyl-Accepting Chemotaxis Proteins

Identifiers

PMID20834231
PMCPMC2964171

What OpenQuestion holds

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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.