Evidence map›Paper›PMID 21965571›Full record

ArticleJournal of bacteriology2011

Positive regulation of the Vibrio cholerae porin OmpT by iron and fur.

S A Craig, C D Carpenter, A R Mey, E E Wyckoff, S M Payne

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

21 citing papers in PubMed, 32 citations in OpenAlex.

  1. Review
  2. mBio · 2024
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. ThemBio · 2017
    Article
  9. Article
  10. Vibrio Iron Transport: Evolutionary Adaptation to Life in Multiple Environments.Microbiology and molecular biology reviews : MMBR · 2016
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Transcriptional regulation by Ferric Uptake Regulator (Fur) in pathogenic bacteria.Frontiers in cellular and infection microbiology · 2013
    Review
  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

5 authors at 1 institution in 1 country.

S A CraigSection of Molecular Genetics and Microbiology, Institute for Cellular and Molecular Biology, University of Texas, Austin, TX 78712, USA.
C D Carpenter
A R Mey
E E Wyckoff
S M Payne
The University of Texas at Austin · US

Funding

Characterization of the ferrous iron transporter Feo in Vibrio choleraeR01AI091957 · NIAID · UNIVERSITY OF TEXAS AT AUSTIN · PI PAYNE, SHELLEY M. · 2011 to 2021
$3.9M
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 R01 AI091957NIAID NIH HHS R01AI091957NIAID NIH HHS R56 AI050669NIAID NIH HHS R56AI050669
6 · The paper itself

Abstract

The transcription factor Fur regulates the expression of a number of genes in Vibrio cholerae in response to changes in the level of available iron. Fur usually acts as a repressor, but here we show that Fur positively regulates the expression of ompT, which encodes a major outer membrane porin. OmpT levels increased when the bacteria were grown in medium containing relatively high levels of iron, and this effect required Fur. The level of ompT mRNA also is increased in the presence of iron and Fur. The effect of iron on OmpT levels was independent of the known ompT regulators ToxR and Crp, and it did not require RyhB, which has been shown to be responsible for positive regulation by iron of some V. cholerae genes. Electrophoretic mobility shift assays showed that Fur binds upstream of the ompT transcription start site in a region overlapping known binding sites for ToxR and Crp. These data suggest that Fur and iron positively regulate ompT expression through the direct binding of Fur to the ompT promoter.

Indexed as

Gene Expression Regulation, BacterialUp-RegulationBacterial ProteinsBase SequenceIronMolecular Sequence DataPorinsPromoter Regions, GeneticProtein BindingTranscription FactorsVibrio choleraeBacterial ProteinsIronompT protein, bacteriaPorinsTranscription Factors

Identifiers

PMID21965571
PMCPMC3232907
OpenAlexW2104192645

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.