Evidence map›Paper›PMID 22556268›Full record

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

Molecular architecture of chemoreceptor arrays revealed by cryoelectron tomography of Escherichia coli minicells.

Jun Liu, Bo Hu, Dustin R Morado, Sneha Jani, Michael D Manson, William Margolin

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 145 papers.

0numbers the graph read from it
0cells of the map it votes in
145citing 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

145 citing papers in PubMed.

  1. Distinct roles of PilI and ChpC inApplied and environmental microbiology · 2026
    Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Review
  10. A chemoreceptor conformational equilibrium controlled by signaling inputs.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Signal integration in chemoreceptor complexes.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  18. Article
  19. A nonequilibrium allosteric model for receptor-kinase complexes: The role of energy dissipation in chemotaxis signaling.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  20. Article

85 more citing papers are in PubMed but not listed here.

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.

Jun LiuDepartment of Pathology and Laboratory Medicine, University of Texas Medical School, Houston, TX 77030, USA. jun.liu.1@uth.tmc.edu
Bo Hu
Dustin R Morado
Sneha Jani
Michael D Manson
William Margolin

Funding

Structure-Function Relationships in the Spirochetal Flagellar MotorR01AI087946 · NIAID · YALE UNIVERSITY · PI LIU, JUN · 2010 to 2025
$6.6M
Targeting and assembly of E. coli division proteinsR01GM061074 · NIGMS · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI MARGOLIN, WILLIAM · 2000 to 2018
$5.7M
NIAID NIH HHS R01 AI087946NIAID NIH HHS R01AI087946NIGMS NIH HHS R01 GM061074NIGMS NIH HHS R01GM61074
6 · The paper itself

Abstract

The chemoreceptors of Escherichia coli localize to the cell poles and form a highly ordered array in concert with the CheA kinase and the CheW coupling factor. However, a high-resolution structure of the array has been lacking, and the molecular basis of array assembly has thus remained elusive. Here, we use cryoelectron tomography of flagellated E. coli minicells to derive a 3D map of the intact array. Docking of high-resolution structures into the 3D map provides a model of the core signaling complex, in which a CheA/CheW dimer bridges two adjacent receptor trimers via multiple hydrophobic interactions. A further, hitherto unknown, hydrophobic interaction between CheW and the homologous P5 domain of CheA in an adjacent core complex connects the complexes into an extended array. This architecture provides a structural basis for array formation and could explain the high sensitivity and cooperativity of chemotaxis signaling in E. coli.

Indexed as

Models, MolecularMolecular ConformationBacterial ProteinsChemotaxisCryoelectron MicroscopyDimerizationElectron Microscope TomographyEscherichia coliEscherichia coli ProteinsHistidine KinaseMembrane ProteinsMethyl-Accepting Chemotaxis ProteinsSignal TransductionBacterial ProteinscheA protein, E coliCheW protein, E coliEscherichia coli ProteinsHistidine KinaseMembrane ProteinsMethyl-Accepting Chemotaxis Proteins

Identifiers

PMID22556268
PMCPMC3384206

What OpenQuestion holds

Textmetadata
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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.