Evidence map›Paper›PMID 24266988›Full record

ArticleBMC research notes2013

Nitrogen starvation-induced transcriptome alterations and influence of transcription regulator mutants in Mycobacterium smegmatis.

Nadja Jeßberger, Yinhua Lu, Johannes Amon, Fritz Titgemeyer, Sophia Sonnewald, Stephen Reid, Andreas Burkovski

Abstract read
In one paragraph

Article in BMC research notes, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–field-weighted citation impact
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

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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

11 citing papers in PubMed.

  1. Article
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  9. Nitrogen regulator GlnR controls uptake and utilization of non-phosphotransferase-system carbon sources in actinomycetes.Proceedings of the National Academy of Sciences of the United States of America · 2015
    Article
  10. Article
  11. Review
4 · The record

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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

7 authors.

Nadja JeßbergerLehrstuhl für Mikrobiologie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany. aburkov@biologie.uni-erlangen.de.
Yinhua Lu
Johannes Amon
Fritz Titgemeyer
Sophia Sonnewald
Stephen Reid
Andreas Burkovski

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAs other bacteria, Mycobacterium smegmatis needs adaption mechanisms to cope with changing nitrogen sources and to survive situations of nitrogen starvation. In the study presented here, transcriptome analyses were used to characterize the response of the bacterium to nitrogen starvation and to elucidate the role of specific transcriptional regulators.

resultsIn response to nitrogen deprivation, a general starvation response is induced in M. smegmatis. This includes changes in the transcription of several hundred genes encoding e.g. transport proteins, proteins involved in nitrogen metabolism and regulation, energy generation and protein turnover. The specific nitrogen-related changes at the transcriptional level depend mainly on the presence of GlnR, while the AmtR protein controls only a small number of genes.

conclusionsM. smegmatis is able to metabolize a number of different nitrogen sources and nitrogen control in M. smegmatis is similar to control mechanisms characterized in streptomycetes, while the master regulator of nitrogen control in corynebacteria, AmtR, is plays a minor role in this regulatory network.

Indexed as

Gene Expression Regulation, BacterialTranscriptomeBacterial ProteinsGene Expression ProfilingGenes, RegulatorMolecular Sequence AnnotationMycobacterium smegmatisNitrogenRepressor ProteinsTrans-ActivatorsTranscription, GeneticBacterial ProteinsNitrogenRepressor ProteinsTrans-Activators

Identifiers

PMID24266988
PMCPMC4222082

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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.