Evidence map›Paper›PMID 27542896›Full record

ArticleBMC microbiology2016

The MarR-like protein PchR (YvmB) regulates expression of genes involved in pulcherriminic acid biosynthesis and in the initiation of sporulation in Bacillus subtilis.

Paola Randazzo, Anne Aubert-Frambourg, Alain Guillot, Sandrine Auger

Open access · goldAbstract read
In one paragraph

Article in BMC microbiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
4.5field-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

34 citing papers in PubMed, 47 citations in OpenAlex.

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  14. A new ROS response factor YvmB protectsApplied and environmental microbiology · 2024
    Article
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  16. Two Distinct Regulatory Systems Control Pulcherrimin Biosynthesis inbioRxiv : the preprint server for biology · 2024
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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

4 authors at 2 institutions in 1 country.

Paola RandazzoMicalis Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350, Jouy-en-Josas, France.
Anne Aubert-FrambourgMicalis Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350, Jouy-en-Josas, France.
Alain GuillotMicalis Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350, Jouy-en-Josas, France.
Sandrine AugerMicalis Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350, Jouy-en-Josas, France. sandrine.auger@jouy.inra.fr.
Microbiologie de l’alimentation au service de la santé · FRUniversité Paris-Saclay · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCyclodipeptides and their derivatives constitute a large class of peptide natural products with noteworthy biological activities. In some yeasts and bacterial species, pulcherriminic acid derived from cyclo-L-leucyl-L-leucyl is excreted and chelates free ferric ions to form the pulcherrimin. In Bacillus subtilis, the enzymes YvmC and CypX are known to be involved in pulcherriminic acid biosynthesis. However, the mechanisms controlling the transcription of the yvmC-cypX operon are still unknown.

resultsIn this work, we demonstrated that the B. subtilis YvmB MarR-like regulator is the major transcription factor controlling yvmC-cypX expression. A comprehensive quantitative proteomic analysis revealed a wide and prominent effect of yvmB deletion on proteins involved in cellular processes depending on iron availability. In addition, expression of yvmB depends on iron availability. Further analysis with real-time in vivo transcriptional profiling allowed us to define the YvmB regulon. We identified yvmBA, yvmC-cypX and yvnB for negative regulation and yisI for positive regulation. In combination with genetic approaches, gel mobility shift assays indicated that a 14-bp palindromic motif constitutes the YvmB binding site. It was unexpected that YvmB controls expression of yisI, whose encoding protein plays a negative role in the regulation of the sporulation initiation pathway. YvmB appears as an additional regulatory element into the cell's decision to grow or sporulate.

conclusionOur findings reveal a possible role of the B. subtilis YvmB regulator in the regulatory networks connected to iron metabolism and to the control of proper timing of sporulation. YvmB was renamed as PchR controlling the pulcherriminic acid biosynthetic pathway of B. subtilis.

Indexed as

Gene Expression Regulation, BacterialBacillus subtilisBacterial ProteinsBinding SitesGene DeletionGene Expression ProfilingGene FusionGene Regulatory NetworksIronMetabolic Networks and PathwaysPromoter Regions, GeneticPyrazinesTranscription FactorsBacterial ProteinsIronpulcherriminic acidPyrazinesTranscription FactorsB. subtilisIron metabolismMarR-type regulatorPulcherriminic acidSporulationYvmB

Identifiers

PMID27542896
PMCPMC4992311
OpenAlexW2507622570

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.