Article
Control of the ferric citrate transport system of Escherichia coli: mutations in region 2.1 of the FecI extracytoplasmic-function sigma factor suppress mutations in the FecR transmembrane regulatory protein.
Journal of bacteriology - 1 Jan 2001
Stiefel A, Mahren S, Ochs M, Schindler P T, Enz S, Braun V
Abstract excerpt
Transcription of the ferric citrate transport genes is initiated by binding of ferric citrate to the FecA protein in the outer membrane of Escherichia coli K-12. Bound ferric citrate does not have to be transported but initiates a signal that is transmitted by FecA across the outer membrane and b...
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