Support for the hypothesis that transcription is initiated before the operator region of the trp-operon of E. coli, and that the repressor, in binding to the operator region, directly blocks the ...
The nucleotide sequence of the region preceding the transcription initiation site of the tryptophan operon of Escherichia coli was determined. Essentially all of the trp operator precedes the ...
Proceedings of the National Academy of Sciences of the United States of America, Vol. 87, No. 22 (Nov., 1990), pp. 8726-8730 (5 pages) We have cloned and characterized the mtr operon of Bacillus ...