Many proteins that recognize specific DNA sequences are thought to bind first nonspecifically to DNA largely by interactions with the DNA backbone phosphates. The protein is thought to slide along the ...

The genes lacZ, lacY and lacA are transcribed from a single promoter (P) that produces a single mRNA from which the three proteins are translated. The operon is regulated by Lac repressor, the product ...

Last week I finally addressed promoters and gave a bit of background on the lac operon. Looking back, I feel that I didn't give the topic of operons adequate treatment. They are a very crucial aspect ...