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A new binding-protein-dependent transport system of Escherichia coli specific for L-arginine was characterized by genetic and biochemical means. The system is encoded by five adjacent genes, artPIQMJ(More)
FNR, the O2-responsive gene regulator of anaerobic respiratory genes in Escherichia coli, contains an N-terminal cluster of four cysteine residues (Cys16-X3-Cys20-X2-Cys23-X5-Cys29), three of which(More)