Transcription of the region encoding the ferric dicitrate-transport system in Escherichia coli: similarity between promoters for fecA and for extracytoplasmic function sigma factors.

Abstract excerpt

We have analyzed the molecular mechanism of regulation of the ferric dicitrate transport system in Escherichia coli (Ec), by studying the transcription of the regulatory and structural genes under various environmental conditions, and by determining the location of their transcriptional start points and promoter regions. We report here that the main species observed in Northern hybridization analyses were a...

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