Evidence map›Paper›PMID 15995201›Full record

ArticleJournal of bacteriology2005

Identification of the iron-responsive genes of Neisseria gonorrhoeae by microarray analysis in defined medium.

Thomas F Ducey, Matthew B Carson, Joshua Orvis, Alain P Stintzi, David W Dyer

Abstract read
In one paragraph

Article in Journal of bacteriology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers.

0numbers the graph read from it
0cells of the map it votes in
69citing papers in PubMed
3.9field-weighted citation impact, top 6% 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

69 citing papers in PubMed, 93 citations in OpenAlex.

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  16. Lipid-Modified Azurin ofFrontiers in microbiology · 2018
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9 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 3 institutions in 2 countries.

Thomas F DuceyLaboratory for Genomics and Bioinformatics, Department of Microbiology and Immunology, University of Oklahoma Health Sciences Center, Biomedical Research Center, Oklahoma City, 73104, USA. Thomas-Ducey@ouhsc.edu
Matthew B Carson
Joshua Orvis
Alain P Stintzi
David W Dyer
Institut thématique Génétique, génomique et bioinformatique · FROklahoma State University · USUniversity of Oklahoma Health Sciences Center · US

Funding

VACCINE-TARGETED IDENTIFICATION OF FITNESS DETERMINANTS IN THE HIV-1 ENVELOPEP20RR016478 · NCRR · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI LEWIS, SHARON A · 2001 to 2011
$35.8M
USE OF 16S RIBOSOMAL DNA SEQUENCING TO EVALUATE NGUP20RR015564 · NCRR · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI GILLASPY, ALLISON · 2000 to 2009
$18.5M
NCRR NIH HHS 5P20-RR-016478NCRR NIH HHS 5P20-RR-15564NCRR NIH HHS P20 RR015564NCRR NIH HHS P20 RR016478
6 · The paper itself

Abstract

To ensure survival, most bacteria must acquire iron, a resource that is sequestered by mammalian hosts. Pathogenic bacteria have therefore evolved intricate systems to sense iron limitation and regulate gene expression appropriately. We used a pan-Neisseria microarray to examine genes regulated in Neisseria gonorrhoeae in response to iron availability in defined medium. Overall, 203 genes varied in expression, 109 up-regulated and 94 down-regulated by iron deprivation. In iron-replete medium, genes essential to rapid bacterial growth were preferentially expressed, while iron transport functions, and predominantly genes of unknown function, were expressed in low-iron medium. Of those TonB-dependent proteins encoded in the FA1090 genome with unknown ligand specificity, expression of three was not controlled by iron availability, suggesting that these receptors may not be high-affinity transporters for iron-containing ligands. Approximately 30% of the operons regulated by iron appeared to be directly under control of Fur. Our data suggest a regulatory cascade where Fur indirectly controls gene expression by affecting the transcription of three secondary regulators. Our data also suggest that a second MerR-like regulator may be directly responding to iron availability and controlling transcription independent of the Fur protein. Comparison of our data with those recently published for Neisseria meningitidis revealed that only a small portion of genes were found to be similarly regulated in these closely related pathogens, while a large number of genes derepressed during iron starvation were unique to each organism.

Indexed as

Oligonucleotide Array Sequence AnalysisBacterial ProteinsBase SequenceCulture MediaDNA PrimersIronNeisseria gonorrhoeaeReverse Transcriptase Polymerase Chain ReactionBacterial ProteinsCulture MediaDNA PrimersIron

Identifiers

PMID15995201
PMCPMC1169496
OpenAlexW2106658384

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.