Evidence map›Paper›PMID 20813261›Full record

ArticleCell2010

A bacterial mRNA leader that employs different mechanisms to sense disparate intracellular signals.

Sun-Yang Park, Michael J Cromie, Eun-Jin Lee, Eduardo A Groisman

Open access · bronzeAbstract read
In one paragraph

Article in Cell, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed
3.4field-weighted citation impact, top 7% 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

64 citing papers in PubMed, 109 citations in OpenAlex.

  1. Article
  2. Making Proteins with Electricity.Reviews of physiology, biochemistry and pharmacology · 2025
    Review
  3. Article
  4. Article
  5. How Bacterial Pathogens Coordinate Appetite with Virulence.Microbiology and molecular biology reviews : MMBR · 2023
    Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Coordination of Phosphate and Magnesium Metabolism in Bacteria.Advances in experimental medicine and biology · 2022
    Article
  11. Minigene as a Novel Regulatory Element in Toxin-Antitoxin Systems.International journal of molecular sciences · 2021
    Article
  12. Article
  13. How the PhoP/PhoQ System Controls Virulence and MgMicrobiology and molecular biology reviews : MMBR · 2021
    Review
  14. Review
  15. Review
  16. Regulation of Bacterial Gene Expression by Transcription Attenuation.Microbiology and molecular biology reviews : MMBR · 2019
    Review
  17. Article
  18. Article
  19. Article
  20. Small-Molecule-Binding Riboswitches.Microbiology spectrum · 2018
    Review

4 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

4 authors at 2 institutions in 1 country.

Sun-Yang ParkDepartment of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO 63110, USA.
Michael J Cromie
Eun-Jin Lee
Eduardo A Groisman
Howard Hughes Medical Institute · USWashington University in St. Louis · US

Funding

REGULATION OF SALMONELLA VIRULENCE BY THE PHOP PROTEINR01AI049561 · NIAID · YALE UNIVERSITY · PI Eduardo Groisman · 2001 to 2026
$9.7M
Howard Hughes Medical InstituteNIAID NIH HHS AI49561NIAID NIH HHS R01 AI049561
6 · The paper itself

Abstract

Bacterial mRNAs often contain leader sequences that respond to specific metabolites or ions by altering expression of the associated downstream protein-coding sequences. Here we report that the leader RNA of the Mg(2+) transporter gene mgtA of Salmonella enterica, which was previously known to function as a Mg(2+)-sensing riboswitch, harbors an 18 codon proline-rich open reading frame-termed mgtL-that permits intracellular proline to regulate mgtA expression. Interfering with mgtL translation by genetic, pharmacological, or environmental means was observed to increase the mRNA levels from the mgtA coding region. Substitution of the mgtL proline codons by other codons abolished the response to proline and to hyperosmotic stress but not to Mg(2+). Our findings show that mRNA leader sequences can consist of complex regulatory elements that utilize different mechanisms to sense separate signals and mediate an appropriate cellular response.

Indexed as

5' Untranslated RegionsGene Expression Regulation, BacterialRegulatory Sequences, Ribonucleic AcidAdenosine TriphosphatasesBacterial ProteinsBase SequenceMagnesiumMembrane Transport ProteinsMolecular Sequence DataProlineRNA, MessengerSalmonella typhimuriumSequence AlignmentTranscription, Genetic5' Untranslated RegionsAdenosine TriphosphatasesBacterial ProteinsMagnesiumMembrane Transport ProteinsMgtA protein, bacteriaProlineRegulatory Sequences, Ribonucleic AcidRNA, Messenger

Identifiers

PMID20813261
PMCPMC2967377
OpenAlexW2099498225

What OpenQuestion holds

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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.