Evidence map›Paper›PMID 17921293›Full record

ArticleJournal of bacteriology2007

Control of the transcription of a short gene encoding a cyclic peptide in Streptococcus thermophilus: a new quorum-sensing system?

Mariam Ibrahim, Alain Guillot, Francoise Wessner, Florence Algaron, Colette Besset, Pascal Courtin, Rozenn Gardan, Véronique Monnet

Abstract read
In one paragraph

Article in Journal of bacteriology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed
3.9field-weighted citation impact, top 8% 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

62 citing papers in PubMed, 94 citations in OpenAlex.

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  11. Identification ofMicroorganisms · 2021
    Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. The pneumococcal social network.PLoS pathogens · 2020
    Review
  17. Article
  18. Review
  19. Review
  20. New Vocabulary for Bacterial Communication.Chembiochem : a European journal of chemical biology · 2020
    Review

2 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

8 authors at 1 institution in 1 country.

Mariam IbrahimINRA, Unité de Biochimie Bactérienne, UR477, F-78350 Jouy en Josas, France.
Alain Guillot
Francoise Wessner
Florence Algaron
Colette Besset
Pascal Courtin
Rozenn Gardan
Véronique Monnet
Département Génétique Animale · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Gram-positive bacteria secrete a variety of peptides that are often subjected to posttranslational modifications and that are either antimicrobials or pheromones involved in bacterial communication. Our objective was to identify peptides secreted by Streptococcus thermophilus, a nonpathogenic bacterium widely used in dairy technology in association with other bacteria, and to understand their potential roles in cell-cell communication. Using reverse-phase liquid chromatography, mass spectrometry, and Edman sequencing, we analyzed the culture supernatants of three S. thermophilus strains (CNRZ1066, LMG18311, and LMD-9) grown in a medium containing no peptides. We identified several peptides in the culture supernatants, some of them found with the three strains while others were specific to the LMD-9 strain. We focused our study on a new modified peptide secreted by S. thermophilus LMD-9 and designated Pep1357C. This peptide contains 9 amino acids and lost 2 Da in a posttranslational modification, most probably a dehydrogenation, leading to a linkage between the Lys2 and Trp6 residues. Production of Pep1357C and transcription of its encoding gene depend on both the medium composition and the growth phase. Furthermore, we demonstrated that transcription of the gene coding for Pep1357C is drastically decreased in mutants inactivated for the synthesis of a short hydrophobic peptide, a transcriptional regulator, or the oligopeptide transport system. Taken together, our results led us to deduce that the transcription of the Pep1357C-encoding gene is controlled by a new quorum-sensing system.

Indexed as

Gene Expression Regulation, BacterialQuorum SensingBacterial ProteinsChromatography, LiquidGenes, BacterialMass SpectrometryMutationPeptides, CyclicProtein Processing, Post-TranslationalRNA, BacterialRNA, MessengerSequence Analysis, ProteinStreptococcus thermophilusTranscription, GeneticBacterial ProteinsPeptides, CyclicRNA, BacterialRNA, Messenger

Identifiers

PMID17921293
PMCPMC2168622
OpenAlexW2111863350

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.