Evidence map›Paper›PMID 18408024›Full record

ArticleJournal of bacteriology2008

Protective action of ppGpp in microcin J25-sensitive strains.

María Fernanda Pomares, Paula A Vincent, Ricardo N Farías, Raúl A Salomón

Abstract read
In one paragraph

Article in Journal of bacteriology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.0field-weighted citation impact, top 21% 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

16 citing papers in PubMed, 35 citations in OpenAlex.

  1. Article
  2. Adaptation of a fluoroquinolone-sensitiveRoyal Society open science · 2024
    Article
  3. Review
  4. Review
  5. Diversity inFrontiers in microbiology · 2020
    Review
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  7. Article
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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.

María Fernanda PomaresDepartamento de Bioquímica de la Nutrición, INSIBIO (Consejo Nacional de Investigaciones Científicas y Técnicas-Universidad Nacional de Tucumán), Chacabuco 461, 4000 San Miguel de Tucumán, Argentina.
Paula A Vincent
Ricardo N Farías
Raúl A Salomón
Instituto Superior de Investigaciones Biológicas · ARNational University of Tucumán · AR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

As Escherichia coli strains enter the stationary phase of growth they become more resistant to the peptide antibiotic microcin J25. It is known that starvation for nutrients such as amino acids or glucose leads to increases in guanosine 3',5'-bispyrophosphate (ppGpp) levels and that the intracellular concentration of this nucleotide increases as cells enter the stationary phase of growth. Therefore, we examined the effects of artificially manipulating the ppGpp levels on sensitivity to microcin J25. A direct correlation was found between ppGpp accumulation and microcin resistance. Our results indicate that the nucleotide is required to induce production of YojI, a chromosomally encoded efflux pump which, in turn, expels microcin from cells. This would maintain the intracellular level of the antibiotic below a toxic level.

Indexed as

Bacterial ProteinsBacteriocinsBiological TransportEscherichia coliGene Expression Regulation, BacterialGuanosine TetraphosphateLigasesMicrobial ViabilityBacterial ProteinsBacteriocinsguanosine 3',5'-polyphosphate synthetasesGuanosine TetraphosphateLigasesmicrocin

Identifiers

PMID18408024
PMCPMC2446768
OpenAlexW2158433423

What OpenQuestion holds

Textmetadata
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.