Article
Phenotypic analysis of Salmonella enterica serovar Typhimurium rpoE mutants encoding RNA polymerase extracytoplasmic stress response sigma factors σ(E) with altered promoter specificity.
Archives of microbiology - 1 Jan 2013
Rezuchova Bronislava, Homerova Dagmar, Sevcikova Beatrica, Novakova Renata, Feckova Lubomira, Roberts Mark, Kormanec Jan
Abstract excerpt
We previously identified mutants in the rpoE gene of Salmonella enterica serovar Typhimurium (S. Typhimurium) encoding RNA polymerase extracytoplasmic stress response sigma factors σ(E) with altered promoter specificity. The replacement of the conserved R171 residue in the conserved region 4.2 of σ(E) by different amino acid residues exhibited different phenotypes. While R171A almost completely abolished sigma...
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