Evidence map›Paper›PMID 27654919›Full record

ArticleNature2016

Structural insight into the role of the Ton complex in energy transduction.

Hervé Celia, Nicholas Noinaj, Stanislav D Zakharov, Enrica Bordignon, Istvan Botos, Monica Santamaria, Travis J Barnard, William A Cramer, Roland Lloubes, Susan K Buchanan

Open access · greenAbstract read
In one paragraph

Article in Nature, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 91 papers.

0numbers the graph read from it
0cells of the map it votes in
91citing papers in PubMed
11.0field-weighted citation impact, top 1% 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

91 citing papers in PubMed, 183 citations in OpenAlex.

  1. Review
  2. Multiple TonB-dependent transport systems inInfection and immunity · 2026
    Article
  3. Article
  4. Article
  5. Advances in understanding Ton and Tol system motor proteins.Biochemical Society transactions · 2026
    Review
  6. Deletion ofApplied and environmental microbiology · 2026
    Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Tetrameric PilZ protein stabilizes stator ring in complex flagellar motor and is required for motility inProceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  18. Transcriptome analysis ofFrontiers in microbiology · 2025
    Article
  19. Review
  20. Review

31 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

10 authors at 7 institutions in 4 countries.

Hervé CeliaLaboratoire d'Ingénierie des Systèmes Macromoléculaires, UMR7255 CNRS/Aix-Marseille Université, Institut de Microbiologie de la Méditerranée, 13402 Marseille Cedex 20, France.
Nicholas NoinajMarkey Center for Structural Biology, Department of Biological Sciences, and the Purdue Institute for Inflammation, Immunology and Infectious Diseases, Purdue University, West Lafayette, Indiana 47907, USA.
Stanislav D ZakharovMarkey Center for Structural Biology, Department of Biological Sciences, and the Purdue Institute for Inflammation, Immunology and Infectious Diseases, Purdue University, West Lafayette, Indiana 47907, USA.
Enrica BordignonFachbereich Physik, Freie Universität, 14195 Berlin, Germany.
Istvan BotosNational Institute of Diabetes &Digestive &Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892, USA.
Monica SantamariaDepartamento de Cirugia Experimental, Instituto de Investigacion Hospital La Paz (IdiPAZ), Paseo de la Castellana 261, 28046 Madrid, Spain.
Travis J BarnardNational Institute of Diabetes &Digestive &Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892, USA.
William A CramerMarkey Center for Structural Biology, Department of Biological Sciences, and the Purdue Institute for Inflammation, Immunology and Infectious Diseases, Purdue University, West Lafayette, Indiana 47907, USA.
Roland LloubesLaboratoire d'Ingénierie des Systèmes Macromoléculaires, UMR7255 CNRS/Aix-Marseille Université, Institut de Microbiologie de la Méditerranée, 13402 Marseille Cedex 20, France.
Susan K BuchananNational Institute of Diabetes &Digestive &Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892, USA.
Purdue University West Lafayette · USNational Institutes of Health · USCentre National de la Recherche Scientifique · FRFreie Universität Berlin · DEHospital La Paz Institute for Health Research · ESInstitut de Microbiologie de la Méditerranée · FRNational Institute of Diabetes and Digestive and Kidney Diseases · US

Funding

Structural characterization of outer membrane proteins from Yersinia pestisZIADK011011 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI BUCHANAN, SUSAN · 2009 to 2025
$19.1M
Trans-Membrane Signaling in the Cytochrome b6f Lipoprotein ComplexR01GM038323 · NIGMS · PURDUE UNIVERSITY WEST LAFAYETTE · PI CRAMER, WILLIAM A. · 1987 to 2017
$5.1M
Structure-Function of Hetero-oligomeric Integral Membrane ProteinsR56GM038323 · NIGMS · PURDUE UNIVERSITY · PI CRAMER, WILLIAM A. · 2007 to 2007
$336k
The role of BamA in the biogenesis of beta-barrel membrane proteinsK22AI113078 · NIAID · PURDUE UNIVERSITY · PI NOINAJ, NICHOLAS · 2015 to 2016
$267k
Intramural NIH HHS ZIA DK011011NIAID NIH HHS K22 AI113078NIGMS NIH HHS R01 GM038323NIGMS NIH HHS R56 GM038323
6 · The paper itself

Abstract

In Gram-negative bacteria, outer membrane transporters import nutrients by coupling to an inner membrane protein complex called the Ton complex. The Ton complex consists of TonB, ExbB, and ExbD, and uses the proton motive force at the inner membrane to transduce energy to the outer membrane via TonB. Here, we structurally characterize the Ton complex from Escherichia coli using X-ray crystallography, electron microscopy, double electron-electron resonance (DEER) spectroscopy, and crosslinking. Our results reveal a stoichiometry consisting of a pentamer of ExbB, a dimer of ExbD, and at least one TonB. Electrophysiology studies show that the Ton subcomplex forms pH-sensitive cation-selective channels and provide insight into the mechanism by which it may harness the proton motive force to produce energy.

Indexed as

Proton-Motive ForceCrystallography, X-RayEscherichia coliEscherichia coli ProteinsHydrogen-Ion ConcentrationMembrane ProteinsMultiprotein ComplexesEscherichia coli ProteinsExbB protein, E coliexbD protein, E coliMembrane ProteinsMultiprotein ComplexestonB protein, E coli

Identifiers

PMID27654919
PMCPMC5161667
OpenAlexW2522145673

What OpenQuestion holds

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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.