Fig. 6From: PROKARYO: an illustrative and interactive computational model of the lactose operon in the bacterium Escherichia coli Repressor Inactivation. a and b RNA polymerase and CAP are blocked by the repressor. Allolactose approaches repressor. c Allolactose has docked onto repressor, causing its conformational change (visualized by a colour change of the repressor protein). Subsequently, repressor will undock from DNA, initiating transcription (Fig. 7)Back to article page