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 ...
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 ...