Evidence map›Paper›PMID 25259870›Full record

ArticlePloS one2014

AcrB, AcrD, and MdtABC multidrug efflux systems are involved in enterobactin export in Escherichia coli.

Tsukasa Horiyama, Kunihiko Nishino

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed
5.4field-weighted citation impact, top 4% 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

72 citing papers in PubMed, 117 citations in OpenAlex.

  1. Review
  2. Article
  3. Cloning and Characterizing Multidrug Efflux Pumps.Methods in molecular biology (Clifton, N.J.) · 2026
    Article
  4. Article
  5. Article
  6. EngineeringACS sustainable chemistry & engineering · 2025
    Article
  7. Review
  8. Review
  9. Contribution of fepABMC microbiology · 2025
    Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Role of bacterial multidrug efflux pumps during infection.World journal of microbiology & biotechnology · 2024
    Review
  15. Article
  16. Intricate link between siderophore secretion and drug efflux inAntimicrobial agents and chemotherapy · 2023
    Article
  17. Article
  18. Article
  19. Article
  20. Article

12 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

2 authors at 1 institution in 1 country.

Tsukasa HoriyamaGraduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan.
Kunihiko NishinoGraduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan; Laboratory of Microbiology and Infectious Diseases, Institute of Scientific and Industrial Research, Osaka University, Osaka, Japan.
Osaka University of Pharmaceutical Sciences · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Escherichia coli produces the iron-chelating compound enterobactin to enable growth under iron-limiting conditions. After biosynthesis, enterobactin is released from the cell. However, the enterobactin export system is not fully understood. Previous studies have suggested that the outer membrane channel TolC is involved in enterobactin export. There are several multidrug efflux transporters belonging to resistance-nodulation-cell division (RND) family that require interaction with TolC to function. Therefore, several RND transporters may be responsible for enterobactin export. In this study, we investigated whether RND transporters are involved in enterobactin export using deletion mutants of multidrug transporters in E. coli. Single deletions of acrB, acrD, mdtABC, acrEF, or mdtEF did not affect the ability of E. coli to excrete enterobactin, whereas deletion of tolC did affect enterobactin export. We found that multiple deletion of acrB, acrD, and mdtABC resulted in a significant decrease in enterobactin export and that plasmids carrying the acrAB, acrD, or mdtABC genes restored the decrease in enterobactin export exhibited by the ΔacrB acrD mdtABC mutant. These results indicate that AcrB, AcrD, and MdtABC are required for the secretion of enterobactin.

Indexed as

ATP-Binding Cassette, Sub-Family C ProteinsBiological TransportDrug Resistance, MicrobialEnterobactinEscherichia coliEscherichia coli ProteinsMembrane Transport ProteinsOrganisms, Genetically ModifiedAcrB protein, E coliAcrD protein, E coliATP-Binding Cassette, Sub-Family C ProteinsEnterobactinEscherichia coli ProteinsMdt-A protein, E coliMembrane Transport Proteins

Identifiers

PMID25259870
PMCPMC4178200
OpenAlexW2029956246

What OpenQuestion holds

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LicenceCC BY
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.