Evidence map›Paper›PMID 16547045›Full record

ArticleJournal of bacteriology2006

Cross-regulation of the Bacillus subtilis glnRA and tnrA genes provides evidence for DNA binding site discrimination by GlnR and TnrA.

Jill M Zalieckas, Lewis V Wray, Susan H Fisher

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.3field-weighted citation impact, top 11% 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

23 citing papers in PubMed, 49 citations in OpenAlex.

  1. Article
  2. Glutamine synthetase and GlnR regulate nitrogen metabolism inApplied and environmental microbiology · 2023
    Article
  3. Review
  4. Article
  5. Alanine synthesized by alanine dehydrogenase enables ammonium-tolerant nitrogen fixation inProceedings of the National Academy of Sciences of the United States of America · 2022
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  16. Review
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  20. Bacillus subtilis glutamine synthetase regulates its own synthesis by acting as a chaperone to stabilize GlnR-DNA complexes.Proceedings of the National Academy of Sciences of the United States of America · 2008
    Article
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

3 authors at 1 institution in 1 country.

Jill M ZalieckasDepartment of Microbiology, Boston University School of Medicine, 715 Albany Street, Boston, MA 02118, USA.
Lewis V Wray
Susan H Fisher
Boston University · US

Funding

PHS HHS GMA51127
6 · The paper itself

Abstract

Two Bacillus subtilis transcriptional factors, TnrA and GlnR, regulate gene expression in response to changes in nitrogen availability. These two proteins have similar amino acid sequences in their DNA binding domains and bind to DNA sites (GlnR/TnrA sites) that have the same consensus sequence. Expression of the tnrA gene was found to be activated by TnrA and repressed by GlnR. Mutational analysis demonstrated that a GlnR/TnrA site which lies immediately upstream of the -35 region of the tnrA promoter is required for regulation of tnrA expression by both GlnR and TnrA. Expression of the glnRA operon, which contains two GlnR/TnrA binding sites (glnRAo1 and glnRAo2) in its promoter region, is repressed by both GlnR and TnrA. The glnRAo2 site, which overlaps the -35 region of the glnRA promoter, was shown to be required for regulation by both GlnR and TnrA, while the glnRAo1 site which lies upstream of the -35 promoter region is only involved in GlnR-mediated regulation. Examination of TnrA binding to tnrA and glnRA promoter DNA in gel mobility shift experiments showed that TnrA bound with an equilibrium dissociation binding constant of 55 nM to the GlnR/TnrA site in the tnrA promoter region, while the affinities of TnrA for the two GlnR/TnrA sites in the glnRA promoter region were greater than 3 muM. These results demonstrate that GlnR and TnrA cross-regulate each other's expression and that there are differences in their DNA-binding specificities.

Indexed as

Gene Expression Regulation, BacterialAmino Acid SequenceBacillus subtilisBacterial ProteinsBase SequenceBinding SitesConsensus SequenceDNA, BacterialGenes, BacterialMolecular Sequence DataPromoter Regions, GeneticProtein BindingRepressor ProteinsSubstrate SpecificityTranscription FactorsTranscription Initiation SiteBacterial ProteinsDNA, BacterialRepressor ProteinsScgR protein, Bacillus subtilisTranscription Factors

Identifiers

PMID16547045
PMCPMC1428417
OpenAlexW2145483021

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.