Evidence map›Paper›PMID 22665794›Full record

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

Structure and regulon of Campylobacter jejuni ferric uptake regulator Fur define apo-Fur regulation.

James Butcher, Sabina Sarvan, Joseph S Brunzelle, Jean-François Couture, Alain Stintzi

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 85 papers.

0numbers the graph read from it
0cells of the map it votes in
85citing 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

85 citing papers in PubMed.

  1. Effects of RyhB on Fur regulation of cytochromeApplied and environmental microbiology · 2026
    Article
  2. Review
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  4. Article
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  7. Article
  8. Article
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  10. Article
  11. Proteomic analysis to unravel the biochemical mechanisms triggered by Bacillus toyonensis SFC 500-1E under chromium(VI) and phenol stress.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2023
    Review
  12. Article
  13. Article
  14. Review
  15. Insights into the Orchestration of Gene Transcription Regulators inInternational journal of molecular sciences · 2022
    Review
  16. Article
  17. Article
  18. Recent Advances in the Siderophore Biology ofFrontiers in microbiology · 2022
    Review
  19. Article
  20. Article

25 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

5 authors.

James ButcherDepartment of Biochemistry, Microbiology and Immunology, Ottawa Institute of Systems Biology, University of Ottawa, Ottawa, ON, Canada, K1H 8M5.
Sabina Sarvan
Joseph S Brunzelle
Jean-François Couture
Alain Stintzi

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

The full regulatory potential of the ferric uptake regulator (Fur) family of proteins remains undefined despite over 20 years of study. We report herein an integrated approach that combines both genome-wide technologies and structural studies to define the role of Fur in Campylobacter jejuni (Cj). CjFur ChIP-chip assays identified 95 genomic loci bound by CjFur associated with functions as diverse as iron acquisition, flagellar biogenesis, and non-iron ion transport. Comparative analysis with transcriptomic data revealed that CjFur regulation extends beyond solely repression and also includes both gene activation and iron-independent regulation. Computational analysis revealed the presence of an elongated holo-Fur repression motif along with a divergent holo-Fur activation motif. This diversity of CjFur DNA-binding elements is supported by the crystal structure of CjFur, which revealed a unique conformation of its DNA-binding domain and the absence of metal in the regulatory site. Strikingly, our results indicate that the apo-CjFur structure retains the canonical V-shaped dimer reminiscent of previously characterized holo-Fur proteins enabling DNA interaction. This conformation stems from a structurally unique hinge domain that is poised to further contribute to CjFur's regulatory functions by modulating the orientation of the DNA-binding domain upon binding of iron. The unique features of the CjFur crystal structure rationalize the binding sequence diversity that was uncovered during ChIP-chip analysis and defines apo-Fur regulation.

Indexed as

Amino Acid SequenceBacterial ProteinsBinding SitesCampylobacter jejuniFerric CompoundsMolecular Sequence DataSequence Homology, Amino AcidTranscriptomeBacterial ProteinsFerric Compounds

Identifiers

PMID22665794
PMCPMC3382491

What OpenQuestion holds

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Registered trials

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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.