The role of MicA (repressing small regulatory non-coding RNAs of two Salmonella porins) was determined in virulence of Salmonella enterica serovar Typhimurium. Transcriptional analysis revealed that the expression of the micA gene is driven by a single σ(E)-dependent promoter, micAp. Its activity increased towards stationary phase; in exponential phase, the activity was induced by several stresses by a DegS-dependent mechanism. Although phenotypic analysis revealed no significant differences between wild-type and the micA mutant strains, in vivo studies showed that this mutant is more virulent in the mouse model.
- MeSH
- bakteriální proteiny genetika metabolismus MeSH
- bakteriální RNA genetika metabolismus MeSH
- lidé MeSH
- molekulární sekvence - údaje MeSH
- myši inbrední BALB C MeSH
- myši MeSH
- nekódující RNA genetika metabolismus MeSH
- regulace genové exprese u bakterií MeSH
- Salmonella typhimurium genetika metabolismus patogenita MeSH
- salmonelóza mikrobiologie MeSH
- sekvence nukleotidů MeSH
- sigma faktor genetika metabolismus MeSH
- virulence MeSH
- zvířata MeSH
- Check Tag
- lidé MeSH
- myši MeSH
- ženské pohlaví MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH