[Determination of the direction of transcription of Escherichia coli K-12 structural genes of the fructose regulon in vivo].

The direction of transcription of specific components of the fructose phosphotransferase system, the fruA, fruK, and fruB genes, was determined in vivo by plasmid F'ts1141ac. Transcription from each of these genes was shown to run in the same direction, counterclockwise with respect to the E. coli chromosomal map.