Evidence map›Paper›PMID 26290475›Full record

ArticleScientific reports2015

ZnuA and zinc homeostasis in Pseudomonas aeruginosa.

Victoria G Pederick, Bart A Eijkelkamp, Stephanie L Begg, Miranda P Ween, Lauren J McAllister, James C Paton, Christopher A McDevitt

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 87 papers.

0numbers the graph read from it
0cells of the map it votes in
87citing papers in PubMed
7.3field-weighted citation impact, top 2% 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

87 citing papers in PubMed, 143 citations in OpenAlex.

  1. Zinc Homeostasis inBiology · 2026
    Article
  2. Pseudogenization of the cntQ permease confers distinct yersinopine-metal uptake selectivity in Yersinia species.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2026
    Article
  3. Identification of iron and zinc responsive TonB-dependent transporters in Pseudomonas aeruginosa.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2026
    Article
  4. Review
  5. A periplasmic metallochaperone (PmcY) couples ZnAntimicrobial agents and chemotherapy · 2026
    Article
  6. Review
  7. Cobalt mitigates zinc-starvation effects in Pseudomonas aeruginosa.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2026
    Article
  8. Pseudopaline-mediated zinc uptake byInfection and immunity · 2026
    Article
  9. Article
  10. A periplasmic zinc capture protein enhances the resistance ofProceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  11. Article
  12. Calprotectin protectsmSystems · 2025
    Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Proteomic profiling of zinc homeostasis mechanisms inbioRxiv : the preprint server for biology · 2025
    Article
  18. Transcriptome analysis ofFrontiers in microbiology · 2025
    Article
  19. Modelling host-pathogen interactions:Microbiology (Reading, England) · 2025
    Article
  20. Two zinc ABC transporters contribute toFrontiers in plant science · 2025
    Article

27 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

7 authors at 1 institution in 1 country.

Victoria G PederickResearch Centre for Infectious Diseases, School of Biological Sciences, University of Adelaide, Adelaide, South Australia, Australia.
Bart A EijkelkampResearch Centre for Infectious Diseases, School of Biological Sciences, University of Adelaide, Adelaide, South Australia, Australia.
Stephanie L BeggResearch Centre for Infectious Diseases, School of Biological Sciences, University of Adelaide, Adelaide, South Australia, Australia.
Miranda P WeenResearch Centre for Infectious Diseases, School of Biological Sciences, University of Adelaide, Adelaide, South Australia, Australia.
Lauren J McAllisterResearch Centre for Infectious Diseases, School of Biological Sciences, University of Adelaide, Adelaide, South Australia, Australia.
James C PatonResearch Centre for Infectious Diseases, School of Biological Sciences, University of Adelaide, Adelaide, South Australia, Australia.
Christopher A McDevittResearch Centre for Infectious Diseases, School of Biological Sciences, University of Adelaide, Adelaide, South Australia, Australia.
University of Adelaide · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pseudomonas aeruginosa is a ubiquitous environmental bacterium and a clinically significant opportunistic human pathogen. Central to the ability of P. aeruginosa to colonise both environmental and host niches is the acquisition of zinc. Here we show that P. aeruginosa PAO1 acquires zinc via an ATP-binding cassette (ABC) permease in which ZnuA is the high affinity, zinc-specific binding protein. Zinc uptake in Gram-negative organisms predominantly occurs via an ABC permease, and consistent with this expectation a P. aeruginosa ΔznuA mutant strain showed an ~60% reduction in cellular zinc accumulation, while other metal ions were essentially unaffected. Despite the major reduction in zinc accumulation, minimal phenotypic differences were observed between the wild-type and ΔznuA mutant strains. However, the effect of zinc limitation on the transcriptome of P. aeruginosa PAO1 revealed significant changes in gene expression that enable adaptation to low-zinc conditions. Genes significantly up-regulated included non-zinc-requiring paralogs of zinc-dependent proteins and a number of novel import pathways associated with zinc acquisition. Collectively, this study provides new insight into the acquisition of zinc by P. aeruginosa PAO1, revealing a hitherto unrecognized complexity in zinc homeostasis that enables the bacterium to survive under zinc limitation.

Indexed as

HomeostasisAmino Acid MotifsAmino Acid SequenceBacterial ProteinsComputational BiologyDown-RegulationGene Expression Regulation, BacterialMembrane Transport ProteinsModels, BiologicalMolecular Sequence DataPseudomonas aeruginosaRibosomal ProteinsSequence Homology, Amino AcidSubstrate SpecificityTranscription, GeneticTransition TemperatureBacterial ProteinsMembrane Transport ProteinsRibosomal ProteinsZinc

Identifiers

PMID26290475
PMCPMC4542158
OpenAlexW1144832332

What OpenQuestion holds

Textmetadata
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.