Open AccessAnalysis of the regulatory region of the heat‐shock gene rpoH of Escherichia coli strains isolated from non‐human hosts 1
Author(s) -
Solı́sGuzmán Gloria,
Ramı́rezSantos Jesús,
Souza Valeria,
GómezEichelmann M.Carmen
Publication year - 2001
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.2001.tb10946.x
Subject(s) - escherichia coli , gene , biology , escherichia coli proteins , genetics , regulatory sequence , histone octamer , regulation of gene expression , nucleosome , histone
The regulatory region of the gene for σ 32 , rpoH , of Escherichia coli strains isolated from non‐human hosts and different geographic regions, was sequenced and compared with that of E. coli K12. The main nucleotide changes observed are localized to the right inverted octamer motif of the CytR box. The effect of these changes was evaluated using transcriptional fusions. The results presented could guide further studies on the transcription regulation of rpoH using E. coli K12 as a model.