Evidence map›Paper›PMID 23457252›Full record

ArticleJournal of bacteriology2013

Positive feedback regulation of stgR expression for secondary metabolism in Streptomyces coelicolor.

Xu-Ming Mao, Zhi-Hao Sun, Bi-Rong Liang, Zhi-Bin Wang, Wei-Hong Feng, Fang-Liang Huang, Yong-Quan Li

Abstract read
In one paragraph

Article in Journal of bacteriology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing 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

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

14 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. A GntR Family Transcription Factor inFrontiers in microbiology · 2018
    Article
  7. Review
  8. Discovery ofProceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. 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

7 authors.

Xu-Ming MaoZhejiang University, Institute of Biochemistry, College of Life Sciences, Hangzhou, China.
Zhi-Hao Sun
Bi-Rong Liang
Zhi-Bin Wang
Wei-Hong Feng
Fang-Liang Huang
Yong-Quan Li

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

LysR-type transcriptional regulators (LTTRs) compose a large family and are responsible for various physiological functions in bacteria, while little is understood about their regulatory mechanism on secondary metabolism in Streptomyces. Here we reported that StgR, a typical LTTR in Streptomyces coelicolor, was a negative regulator of undecylprodigiosin (Red) and γ-actinorhodin (Act) production in the early developmental phase of secondary metabolism by suppressing the expression of two pathway-specific regulator genes, redD and actII-orf4, respectively. Meanwhile, stgR expression was downregulated during secondary metabolism to remove its repressive effects on antibiotic production. Moreover, stgR expression was positively autoregulated by direct binding of StgR to its own promoter (stgRp), and the binding site adjacent to translation start codon was determined by a DNase I footprinting assay. Furthermore, the StgR-stgRp interaction could be destroyed by the antibiotic γ-actinorhodin produced from S. coelicolor. Thus, our results suggested a positive feedback regulatory mechanism of stgR expression and antibiotic production for the rapid and irreversible development of secondary metabolism in Streptomyces.

Indexed as

Feedback, PhysiologicalGene Expression Regulation, BacterialBacterial ProteinsBase SequenceBinding SitesHelix-Turn-Helix MotifsMolecular Sequence DataPromoter Regions, GeneticProtein BindingStreptomyces coelicolorTranscription FactorsBacterial ProteinsTranscription Factors

Identifiers

PMID23457252
PMCPMC3624600

What OpenQuestion holds

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Registered trials

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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.