A. Aguirre et al., Phosphorylated PmrA interacts with the promoter region of ugd in Salmonella enterica serovar Typhimurium, J BACT, 182(13), 2000, pp. 3874-3876
The Salmonella PmrA-PmrB system controls the expression of genes necessary
for polymyxin B resistance. Four loci were previously identified as part of
the regulon, and interaction of PmrA with the promoter region of three of
them was observed. Here we characterized the interaction of PmrA with the p
romoter region of ugd, previously suggested to be regulated indirectly by P
mrA. Our results indicate that PmrA controls the expression of ugd by inter
acting with a specific sequence in the promoter region of this gene.