Evidence map›Paper›PMID 21539787›Full record

ArticleBiophysical journal2011

Coordinated reversal of flagellar motors on a single Escherichia coli cell.

Shun Terasawa, Hajime Fukuoka, Yuichi Inoue, Takashi Sagawa, Hiroto Takahashi, Akihiko Ishijima

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
1.7field-weighted citation impact, top 19% 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

35 citing papers in PubMed, 53 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Flagellar motor remodeling during swarming requires FliL.bioRxiv : the preprint server for biology · 2023
    Article
  8. Article
  9. Article
  10. Motility of the Zoonotic SpirocheteInternational journal of molecular sciences · 2022
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. One Basic Blueprint, Many Different Motors.Journal of bacteriology · 2019
    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

6 authors at 1 institution in 1 country.

Shun TerasawaGraduate School of Life Sciences, Tohoku University, Aoba-ku, Sendai, Japan.
Hajime Fukuoka
Yuichi Inoue
Takashi Sagawa
Hiroto Takahashi
Akihiko Ishijima
Tohoku University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

An Escherichia coli cell transduces extracellular stimuli sensed by chemoreceptors to the state of an intracellular signal molecule, which regulates the switching of the rotational direction of the flagellar motors from counterclockwise (CCW) to clockwise (CW) and from CW back to CCW. Here, we performed high-speed imaging of flagellar motor rotation and show that the switching of two different motors on a cell is controlled coordinatedly by an intracellular signal protein, phosphorylated CheY (CheY-P). The switching is highly coordinated with a subsecond delay between motors in clear correlation with the distance of each motor from the chemoreceptor patch localized at a cell pole, which would be explained by the diffusive motion of CheY-P molecules in the cell. The coordinated switching becomes disordered by the expression of a constitutively active CheY mutant that mimics the CW-rotation stimulating function. The coordinated switching requires CheZ, which is the phosphatase for CheY-P. Our results suggest that a transient increase and decrease in the concentration of CheY-P caused by a spontaneous burst of its production by the chemoreceptor patch followed by its dephosphorylation by CheZ, which is probably a wavelike propagation in a subsecond timescale, triggers and regulates the coordinated switching of flagellar motors.

Indexed as

Artificial CellsBacterial ProteinsChemoreceptor CellsEscherichia coliEscherichia coli ProteinsFlagellaGene DeletionGreen Fluorescent ProteinsIntracellular SpaceMembrane ProteinsMethyl-Accepting Chemotaxis ProteinsModels, BiologicalMolecular Motor ProteinsMutant ProteinsRotationBacterial ProteinscheY protein, E coliEscherichia coli ProteinsGreen Fluorescent ProteinsMembrane ProteinsMethyl-Accepting Chemotaxis ProteinsMolecular Motor ProteinsMutant Proteins

Identifiers

PMID21539787
PMCPMC3149276
OpenAlexW1993937681

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.