How do lactose, lac
repressor, glucose, cAMP, and CRP/CAP exert control over the lac operon? Make
sure you know and can explain the mechanism.
- –Lactose present: repressor binds
- lactose but not DNA; operon can be ON
lac repressor: Blocks the operator when lactose is bound to it.
glucose: –Low glucose: cAMP level is high, CAP/CRP binds cAMP and DNA, operon can be ON