Evidence map›Paper›PMID 16299312›Full record

ArticleInfection and immunity2005

Iron and fur regulation in Vibrio cholerae and the role of fur in virulence.

Alexandra R Mey, Elizabeth E Wyckoff, Vanamala Kanukurthy, Carolyn R Fisher, Shelley M Payne

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 115 papers.

0numbers the graph read from it
0cells of the map it votes in
115citing papers in PubMed
4.8field-weighted citation impact, top 5% 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

115 citing papers in PubMed, 198 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Characterization of the ferric uptake regulatorApplied and environmental microbiology · 2024
    Article
  9. Review
  10. Article
  11. Increased iron utilization and oxidative stress tolerance in aApplied and environmental microbiology · 2023
    Article
  12. Article
  13. Genomics ofPathogens (Basel, Switzerland) · 2023
    Article
  14. Article
  15. Systemic, Mucosal, and Memory Immune Responses following Cholera.Tropical medicine and infectious disease · 2021
    Review
  16. Article
  17. Article
  18. Iron Reshapes the Gut Microbiome and Host Metabolism.Journal of lipid and atherosclerosis · 2021
    Review
  19. Review
  20. Article

55 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 at 2 institutions in 2 countries.

Alexandra R MeyThe University of Texas, Section of Molecular Genetics and Microbiology, Austin, TX 78712-1095, USA.
Elizabeth E Wyckoff
Vanamala Kanukurthy
Carolyn R Fisher
Shelley M Payne
Laboratory of Molecular Genetics · PLThe University of Texas at Austin · US

Funding

V. cholerae iron transport mechanisms and pathogenesisR01AI050669 · NIAID · UNIVERSITY OF TEXAS AUSTIN · PI PAYNE, SHELLEY M. · 2002 to 2006
$1.5M
Iron transport and its role in pathogenesis of Vibrio choleraeR56AI050669 · NIAID · UNIVERSITY OF TEXAS AT AUSTIN · PI PAYNE, SHELLEY M. · 2008 to 2009
$742k
NIAID NIH HHS AI50669NIAID NIH HHS R01 AI050669NIAID NIH HHS R56 AI050669
6 · The paper itself

Abstract

Regulation of iron uptake and utilization is critical for bacterial growth and for prevention of iron toxicity. In many bacterial species, this regulation depends on the iron-responsive master regulator Fur. In this study we report the effects of iron and Fur on gene expression in Vibrio cholerae. We show that Fur has both positive and negative regulatory functions, and we demonstrate Fur-independent regulation of gene expression by iron. Nearly all of the known iron acquisition genes were repressed by Fur under iron-replete conditions. In addition, genes for two newly identified iron transport systems, Feo and Fbp, were found to be negatively regulated by iron and Fur. Other genes identified in this study as being induced in low iron and in the fur mutant include those encoding superoxide dismutase (sodA), fumarate dehydratase (fumC), bacterioferritin (bfr), bacterioferritin-associated ferredoxin (bfd), and multiple genes of unknown function. Several genes encoding iron-containing proteins were repressed in low iron and in the fur mutant, possibly reflecting the need to reserve available iron for the most critical functions. Also repressed in the fur mutant, but independently of iron, were genes located in the V. cholerae pathogenicity island, encoding the toxin-coregulated pilus (TCP), and genes within the V. cholerae mega-integron. The fur mutant exhibited very weak autoagglutination, indicating a possible defect in expression or assembly of the TCP, a major virulence factor of V. cholerae. Consistent with this observation, the fur mutant competed poorly with its wild-type parental strain for colonization of the infant mouse gut.

Indexed as

Gene Expression Regulation, BacterialBacterial ProteinsDown-RegulationGene Expression ProfilingGenes, BacterialIronMutationOligonucleotide Array Sequence AnalysisRepressor ProteinsUp-RegulationVibrio choleraeVirulenceBacterial Proteinsferric uptake regulating proteins, bacterialIronRepressor Proteins

Identifiers

PMID16299312
PMCPMC1307094
OpenAlexW2168749488

What OpenQuestion holds

Textmetadata
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.