Digitala Vetenskapliga Arkivet

Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Toxin-antitoxin genes are differentially expressed in Escherichia coli relA and spoT mutans cultured under nitrogen, fatty acid, or carbon starvation conditions
Univ Gdansk, Fac Biol, Dept Bacterial Mol Genet, Gdansk, Poland..
Univ Gdansk, Fac Biol, Dept Bacterial Mol Genet, Gdansk, Poland..
Univ Gdansk, Fac Biol, Dept Bacterial Mol Genet, Gdansk, Poland..
2025 (English)In: Frontiers in Microbiology, E-ISSN 1664-302X, Vol. 15, article id 1528825Article in journal (Refereed) Published
Abstract [en]

Introduction The stringent response is one of the fundamental mechanisms that control and modulate bacterial adaptation to stress conditions, such as nutrient limitation. The accumulation of stringent response effectors, (p)ppGpp, causes differential expression of approximately 500 genes, including genes of bacterial endogenous toxin-antitoxin (TA) systems. However, the exact link between (p)ppGpp and toxin-antitoxin systems' activation, as well as toxin-antitoxin role in stress adaptation remains disputed.Methods In this study, we performed a complex analysis of changes (RNA-Seq) in the toxin-antitoxin operons' transcription in response to nitrogen, fatty acid, or carbon starvation, in bacteria with different abilities of (p)ppGpp accumulation.Results and discussion Although we observed that in some cases (p)ppGpp accumulation appears to be crucial for transcriptional activation of TA genes (e.g., ghoST, ryeA), our data indicates that the general pattern of chromosomally encoded TA gene expression in E. coli differs depending on the nutrient distribution in the environment, regardless of the alarmone accumulation.

Place, publisher, year, edition, pages
Frontiers Media S.A., 2025. Vol. 15, article id 1528825
Keywords [en]
toxin-antitoxin, relA, spoT203, ppGpp, RNA-seq, hokB, mqsRA, ghoST
National Category
Microbiology Molecular Biology
Identifiers
URN: urn:nbn:se:uu:diva-550012DOI: 10.3389/fmicb.2024.1528825ISI: 001409966900001PubMedID: 39895937OAI: oai:DiVA.org:uu-550012DiVA, id: diva2:1938156
Available from: 2025-02-17 Created: 2025-02-17 Last updated: 2025-02-17Bibliographically approved

Open Access in DiVA

fulltext(1342 kB)20 downloads
File information
File name FULLTEXT01.pdfFile size 1342 kBChecksum SHA-512
67a5e21bf650da2458264e5c89426194e1354f7a5b4e98f1241cf12d319193c1fcd6f6eb4f84569b823ac8a8f3c374ad0fe04bf1b9ae75ca16a84c0b091e54c4
Type fulltextMimetype application/pdf

Other links

Publisher's full textPubMed

Search in DiVA

By author/editor
Olszewski, Pawel K.
In the same journal
Frontiers in Microbiology
MicrobiologyMolecular Biology

Search outside of DiVA

GoogleGoogle Scholar
Total: 20 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
pubmed
urn-nbn

Altmetric score

doi
pubmed
urn-nbn
Total: 276 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf