Evidence map›Paper›PMID 15547269›Full record

ArticleJournal of bacteriology2004

Negative transcriptional regulation of the ilv-leu operon for biosynthesis of branched-chain amino acids through the Bacillus subtilis global regulator TnrA.

Shigeo Tojo, Takenori Satomura, Kaori Morisaki, Ken-Ichi Yoshida, Kazutake Hirooka, Yasutaro Fujita

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.6field-weighted citation impact, top 16% 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

19 citing papers in PubMed, 37 citations in OpenAlex.

  1. Article
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  5. Frontiers in microbiology · 2020
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  6. TheApplied and environmental microbiology · 2019
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  13. Transcriptional de-repression and Mfd are mutagenic in stressed Bacillus subtilis cells.Journal of molecular microbiology and biotechnology · 2011
    Article
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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

6 authors at 1 institution in 1 country.

Shigeo TojoDepartment of Biotechnology, Faculty of Life Science and Technology, Fukuyama University, Fukuyama, Japan.
Takenori Satomura
Kaori Morisaki
Ken-Ichi Yoshida
Kazutake Hirooka
Yasutaro Fujita
Fukuyama University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The Bacillus subtilis ilv-leu operon is involved in the synthesis of branched-chain amino acids (valine, isoleucine, and leucine). The two- to threefold repression of expression of the ilv-leu operon during logarithmic-phase growth under nitrogen-limited conditions, which was originally detected by a DNA microarray analysis to compare the transcriptomes from the wild-type and tnrA mutant strains, was confirmed by lacZ fusion and Northern experiments. A genome-wide TnrA box search revealed a candidate box approximately 200 bp upstream of the transcription initiation base of the ilv-leu operon, the TnrA binding to which was verified by gel retardation and DNase I footprinting analyses. Deletion and base substitution of the TnrA box sequence affected the ilv-leu promoter activity in vivo, implying that TnrA bound to the box might be able to inhibit the promoter activity, possibly through DNA bending. The negative control of the expression of the ilv-leu operon by TnrA, which is considered to represent rather fine-tuning (two- to threefold), is a novel regulatory link between nitrogen and amino acid metabolism.

Indexed as

OperonTranscription, GeneticAmino Acids, Branched-ChainBacillus subtilisBacterial ProteinsBase SequenceDNA-Binding ProteinsGene Expression Regulation, BacterialMolecular Sequence DataPromoter Regions, GeneticRepressor ProteinsTranscription FactorsAmino Acids, Branched-ChainBacterial ProteinsDNA-Binding ProteinsRepressor ProteinsScgR protein, Bacillus subtilisTranscription Factors

Identifiers

PMID15547269
PMCPMC529080
OpenAlexW2089542098

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.