Evidence map›Paper›PMID 24322295›Full record

ArticleNucleic acids research2014

FeON-FeOFF: the Helicobacter pylori Fur regulator commutates iron-responsive transcription by discriminative readout of opposed DNA grooves.

Francesca Agriesti, Davide Roncarati, Francesco Musiani, Cristian Del Campo, Mario Iurlaro, Francesca Sparla, Stefano Ciurli, Alberto Danielli, Vincenzo Scarlato

Abstract read
In one paragraph

Article in Nucleic acids research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing 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

24 citing papers in PubMed.

  1. Article
  2. ThemBio · 2025
    Article
  3. Article
  4. Antibiotic-induced ROS-mediated Fur allosterism contributes toAntimicrobial agents and chemotherapy · 2024
    Article
  5. Article
  6. A Positively SelectedInfection and immunity · 2023
    Article
  7. Article
  8. Insights into the Orchestration of Gene Transcription Regulators inInternational journal of molecular sciences · 2022
    Review
  9. Article
  10. Article
  11. Frontiers in cellular and infection microbiology · 2019
    Article
  12. Redox Sensing by FeAntioxidants & redox signaling · 2018
    Review
  13. Article
  14. TheFrontiers in microbiology · 2018
    Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. On the interaction of Helicobacter pylori NikR, a Ni(II)-responsive transcription factor, with the urease operator: in solution and in silico studies.Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry · 2015
    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

9 authors.

Francesca AgriestiDepartment of Pharmacy and Biotechnology (FaBiT), University of Bologna, 40126 Bologna, Italy.
Davide Roncarati
Francesco Musiani
Cristian Del Campo
Mario Iurlaro
Francesca Sparla
Stefano Ciurli
Alberto Danielli
Vincenzo Scarlato

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Most transcriptional regulators bind nucleotide motifs in the major groove, although some are able to recognize molecular determinants conferred by the minor groove of DNA. Here we report a transcriptional commutator switch that exploits the alternative readout of grooves to mediate opposite output regulation for the same input signal. This mechanism accounts for the ability of the Helicobacter pylori Fur regulator to repress the expression of both iron-inducible and iron-repressible genes. When iron is scarce, Fur binds to DNA as a dimer, through the readout of thymine pairs in the major groove, repressing iron-inducible transcription (FeON). Conversely, on iron-repressible elements the metal ion acts as corepressor, inducing Fur multimerization with consequent minor groove readout of AT-rich inverted repeats (FeOFF). Our results provide first evidence for a novel regulatory paradigm, in which the discriminative readout of DNA grooves enables to toggle between the repression of genes in a mutually exclusive manner.

Indexed as

Gene Expression Regulation, BacterialTranscription, GeneticAllosteric RegulationBacterial ProteinsBase SequenceConsensus SequenceDistamycinsDNA, BacterialHelicobacter pyloriIronModels, MolecularNucleic Acid ConformationOperator Regions, GeneticProtein BindingRepressor ProteinsBacterial ProteinsDistamycinsDNA, Bacterialferric uptake regulating proteins, bacterialIronRepressor Proteinsstallimycin

Identifiers

PMID24322295
PMCPMC3950669

What OpenQuestion holds

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LicenceCC BY-NC
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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.