Evidence map›Paper›PMID 16790797›Full record

ArticleInfection and immunity2006

Identification of Francisella tularensis genes affected by iron limitation.

Kaiping Deng, Robert J Blick, Wei Liu, Eric J Hansen

Open access · greenAbstract readValidation Study
In one paragraph

Article in Infection and immunity, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 76 papers.

0numbers the graph read from it
0cells of the map it votes in
76citing papers in PubMed
5.7field-weighted citation impact, top 3% 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

76 citing papers in PubMed, 112 citations in OpenAlex.

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  12. TheFrontiers in cellular and infection microbiology · 2018
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  16. Differential Growth ofFrontiers in microbiology · 2017
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  17. Nramp1 and NrampB Contribute to Resistance againstFrontiers in cellular and infection microbiology · 2017
    Article
  18. The Role and Mechanism of Erythrocyte Invasion byFrontiers in cellular and infection microbiology · 2017
    Article
  19. Iron and Virulence inFrontiers in cellular and infection microbiology · 2017
    Review
  20. Article

16 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

4 authors at 1 institution in 1 country.

Kaiping DengDepartment of Microbiology, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390-9048, USA.
Robert J Blick
Wei Liu
Eric J Hansen
The University of Texas Southwestern Medical Center · US

Funding

Molecular Biology of Francisella tularensis VirulenceP01AI055637 · NIAID · UT SOUTHWESTERN MEDICAL CENTER · PI NORGARD, MICHAEL V · 2003 to 2007
$8.5M
NIAID NIH HHS P01 AI055637NIAID NIH HHS P01 AI55637
6 · The paper itself

Abstract

Cells of an attenuated live vaccine strain (LVS) of F. tularensis grown under iron-restricted conditions were found to contain increased quantities of several proteins relative to cells of this same strain grown under iron-replete conditions. Mass spectrometric analysis identified two of these proteins as IglC and PdpB, both of which are encoded by genes located in a previously identified pathogenicity island in F. tularensis LVS. Regions with homology to the consensus Fur box sequence were located immediately in front of the iglC and pdpB open reading frames (ORFs), and in silico analysis of the F. tularensis Schu4 genome detected a number of predicted 5' untranslated regions that contained putative Fur boxes. The putative Fur box preceding Francisella iron-regulated gene A (figA) had the highest degree of identity with the consensus Fur box sequence. DNA microarray analysis showed that nearly 80 of the genes in the F. tularensis LVS genome were up- or down-regulated at least twofold under iron-restricted growth conditions. When tested for possible siderophore production by means of the Chrome Azurol S assay, a wild-type F. novicida strain produced a large reaction zone whereas its figA mutant produced very little reactivity in this assay. In addition, a cross-feeding experiment demonstrated that this siderophore-like activity produced by the wild-type F. novicida strain could enhance the ability of the F. novicida figA mutant to grow under iron-restricted conditions. This study provides the first identification of iron-regulated genes in F. tularensis LVS and evidence for the production of a siderophore-like molecule by F. novicida.

Indexed as

Genes, BacterialAmino Acid SequenceBacterial Outer Membrane ProteinsBacterial ProteinsFrancisella tularensisGene Expression Regulation, BacterialIronIron-Binding ProteinsMolecular Sequence DataOligonucleotide Array Sequence AnalysisPeriplasmic Binding ProteinsBacterial Outer Membrane ProteinsBacterial ProteinsIronIron-Binding ProteinsPeriplasmic Binding Proteins

Identifiers

PMID16790797
PMCPMC1489736
OpenAlexW2108279937

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.