Evidence map›Paper›PMID 22359501›Full record

ArticlePLoS pathogens2012

Concerted actions of a thermo-labile regulator and a unique intergenic RNA thermosensor control Yersinia virulence.

Katja Böhme, Rebekka Steinmann, Jens Kortmann, Stephanie Seekircher, Ann Kathrin Heroven, Evelin Berger, Fabio Pisano, Tanja Thiermann, Hans Wolf-Watz, Franz Narberhaus and 1 more

Open access · goldAbstract read
In one paragraph

Article in PLoS pathogens, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 95 papers.

0numbers the graph read from it
0cells of the map it votes in
95citing papers in PubMed
13.6field-weighted citation impact, top 1% 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

95 citing papers in PubMed, 173 citations in OpenAlex.

  1. Article
  2. Mechanisms of thermoregulation inJournal of bacteriology · 2026
    Review
  3. Article
  4. Prevalence and Geographical Distribution of FoodborneAnimals : an open access journal from MDPI · 2026
    Review
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35 more citing papers are in PubMed but not listed here.

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

11 authors at 4 institutions in 2 countries.

Katja BöhmeInstitut für Mikrobiologie, Technische Universität Braunschweig, Braunschweig, Germany.
Rebekka Steinmann
Jens Kortmann
Stephanie Seekircher
Ann Kathrin Heroven
Evelin Berger
Fabio Pisano
Tanja Thiermann
Hans Wolf-Watz
Franz Narberhaus
Petra Dersch
Helmholtz Centre for Infection Research · DERuhr University Bochum · DETechnische Universität Braunschweig · DEUmeå University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Expression of all Yersinia pathogenicity factors encoded on the virulence plasmid, including the yop effector and the ysc type III secretion genes, is controlled by the transcriptional activator LcrF in response to temperature. Here, we show that a protein- and RNA-dependent hierarchy of thermosensors induce LcrF synthesis at body temperature. Thermally regulated transcription of lcrF is modest and mediated by the thermo-sensitive modulator YmoA, which represses transcription from a single promoter located far upstream of the yscW-lcrF operon at moderate temperatures. The transcriptional response is complemented by a second layer of temperature-control induced by a unique cis-acting RNA element located within the intergenic region of the yscW-lcrF transcript. Structure probing demonstrated that this region forms a secondary structure composed of two stemloops at 25°C. The second hairpin sequesters the lcrF ribosomal binding site by a stretch of four uracils. Opening of this structure was favored at 37°C and permitted ribosome binding at host body temperature. Our study further provides experimental evidence for the biological relevance of an RNA thermometer in an animal model. Following oral infections in mice, we found that two different Y. pseudotuberculosis patient isolates expressing a stabilized thermometer variant were strongly reduced in their ability to disseminate into the Peyer's patches, liver and spleen and have fully lost their lethality. Intriguingly, Yersinia strains with a destabilized version of the thermosensor were attenuated or exhibited a similar, but not a higher mortality. This illustrates that the RNA thermometer is the decisive control element providing just the appropriate amounts of LcrF protein for optimal infection efficiency.

Indexed as

AnimalsBacterial ProteinsBase SequenceBlotting, NorthernBlotting, WesternFemaleGene Expression Regulation, BacterialGene Knockout TechniquesGenes, BacterialMiceMice, Inbred BALB CMolecular Sequence DataPolymerase Chain ReactionRNA, BacterialTemperatureTrans-ActivatorsBacterial ProteinslcrF protein, Yersinia pestisRNA, BacterialTrans-ActivatorsVirulence Factors

Identifiers

PMID22359501
PMCPMC3280987
OpenAlexW2023614447

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.