For example, repression of the lac operon by its repressor, called lacI, is inhibited by the ligand allolactose, to which the repressor protein directly binds. Thus, lactose, from which ...

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 ...

LacI is a tetrameric protein, using two dimers to bind two specific ... intriguing that we could artificially create something that could create a DNA loop that was as strong as that could be seen in ...