Proceedings of the National Academy of Sciences of the United States of America, Vol. 74, No. 1 (Jan., 1977), pp. 106-110 (5 pages) We have derived the nucleotide sequence of a segment of the operator ...
How do bacteria avoid wasteful production of unnecessary proteins when their genes are always on? The answer lies in regulating the operon. As trp levels increase, trp binds to trpR, causing a ...
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 ...
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