Evidence map›Paper›PMID 28761097›Full record

ArticleNature communications2017

Structures and transport dynamics of a Campylobacter jejuni multidrug efflux pump.

Chih-Chia Su, Linxiang Yin, Nitin Kumar, Lei Dai, Abhijith Radhakrishnan, Jani Reddy Bolla, Hsiang-Ting Lei, Tsung-Han Chou, Jared A Delmar, Kanagalaghatta R Rajashankar and 3 more

Abstract read
In one paragraph

Article in Nature communications, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers.

0numbers the graph read from it
0cells of the map it votes in
57citing 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

57 citing papers in PubMed.

  1. Article
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  8. Sharing ofmBio · 2025
    Article
  9. Article
  10. Mutation-based mechanism and evolution of the potent multidrug efflux pump RE-CmeABC inProceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  11. Article
  12. Structural analysis of resistance-nodulation cell division transporters.Microbiology and molecular biology reviews : MMBR · 2024
    Review
  13. Article
  14. Review
  15. Article
  16. Crystal structures of multidrug efflux transporters fromProceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  17. Article
  18. Review
  19. Article
  20. Review
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

13 authors.

Chih-Chia SuDepartment of Physics and Astronomy, Iowa State University, Ames, IA, 50011, USA.
Linxiang YinRoy J. Carver Department of Biochemistry, Biophysics and Molecular Biology, Iowa State University, Ames, IA, 50011, USA.
Nitin KumarDepartment of Chemistry, Iowa State University, Ames, IA, 50011, USA.
Lei DaiDepartment of Veterinary Microbiology, College of Veterinary Medicine, Iowa State University, Ames, IA, 50011, USA.
Abhijith RadhakrishnanDepartment of Chemistry, Iowa State University, Ames, IA, 50011, USA.
Jani Reddy BollaDepartment of Chemistry, Iowa State University, Ames, IA, 50011, USA.
Hsiang-Ting LeiDepartment of Chemistry, Iowa State University, Ames, IA, 50011, USA.
Tsung-Han ChouDepartment of Physics and Astronomy, Iowa State University, Ames, IA, 50011, USA.
Jared A DelmarDepartment of Physics and Astronomy, Iowa State University, Ames, IA, 50011, USA.
Kanagalaghatta R RajashankarNE-CAT and Department of Chemistry and Chemical Biology, Cornell University, Argonne National Laboratory, Bldg. 436E, 9700 S. Cass Avenue, Argonne, IL, 60439, USA.
Qijing ZhangDepartment of Veterinary Microbiology, College of Veterinary Medicine, Iowa State University, Ames, IA, 50011, USA.
Yeon-Kyun ShinRoy J. Carver Department of Biochemistry, Biophysics and Molecular Biology, Iowa State University, Ames, IA, 50011, USA.
Edward W YuDepartment of Physics and Astronomy, Iowa State University, Ames, IA, 50011, USA. ewyu@iastate.edu.

Funding

Synthetic Antigen Binder CoreU54GM087519 · NIGMS · UNIVERSITY OF CHICAGO · PI NAKAMOTO, ROBERT K. · 2010 to 2017
$31.9M
Overall EvaluationP41GM103403 · NIGMS · CORNELL UNIVERSITY · PI EALICK, STEVEN E · 2012 to 2017
$14.3M
Regulations of SNARE-dependent membrane fusionR01GM051290 · NIGMS · UNIVERSITY OF CALIFORNIA BERKELEY · PI SHIN, YEON-KYUN · 1999 to 2019
$5.0M
Function and inhibition of multidrug efflux systems in CampylobacterR01AI118283 · NIAID · IOWA STATE UNIVERSITY · PI ZHANG, QIJING · 2016 to 2020
$1.6M
Structure and mechanism of the AbgT-family transportersR01AI114629 · NIAID · IOWA STATE UNIVERSITY · PI YU, EDWARD W · 2015 to 2017
$1.1M
NIAID NIH HHS R01 AI114629NIAID NIH HHS R01 AI118283NIGMS NIH HHS P41 GM103403NIGMS NIH HHS R01 GM051290NIGMS NIH HHS U54 GM087519
6 · The paper itself

Abstract

Resistance-nodulation-cell division efflux pumps are integral membrane proteins that catalyze the export of substrates across cell membranes. Within the hydrophobe-amphiphile efflux subfamily, these resistance-nodulation-cell division proteins largely form trimeric efflux pumps. The drug efflux process has been proposed to entail a synchronized motion between subunits of the trimer to advance the transport cycle, leading to the extrusion of drug molecules. Here we use X-ray crystallography and single-molecule fluorescence resonance energy transfer imaging to elucidate the structures and functional dynamics of the Campylobacter jejuni CmeB multidrug efflux pump. We find that the CmeB trimer displays a very unique conformation. A direct observation of transport dynamics in individual CmeB trimers embedded in membrane vesicles indicates that each CmeB subunit undergoes conformational transitions uncoordinated and independent of each other. On the basis of our findings and analyses, we propose a model for transport mechanism where CmeB protomers function independently within the trimer.Multidrug efflux pumps significantly contribute for bacteria resistance to antibiotics. Here the authors present the structure of Campylobacter jejuni CmeB pump combined with functional FRET assays to propose a transport mechanism where each CmeB protomers is functionally independent from the trimer.

Indexed as

Bacterial ProteinsCampylobacter jejuniCrystallography, X-RayDrug Resistance, Multiple, BacterialFluorescence Resonance Energy TransferMembrane Transport ProteinsProtein ConformationProtein Structure, SecondaryBacterial ProteinsMembrane Transport Proteins

Identifiers

PMID28761097
PMCPMC5537355

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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.