The regulatory region of the trp operon of Serratia marcescens

Abstract
The nucleotide sequence of the regulatory region of the trp operon of S. marcescens is presented. It contains a transcription termination control site in the transcribed leader region preceding the 1st structural gene of the operon and a regulated promoter/operator transcription initiation region. The structural organization of the leader region differs substantially from that of [Escherichia coli].