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Sammy Coleman
Chemistry
26 December, 12:00
Region where the lac repressor can bind to DNA.
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Graham Gill
26 December, 12:24
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A key to controlling the operon is the DNA-binding protein called the lac repressor (LacI), shown on the left. In the absence of lactose, LacI inhibits the expression of the operon by binding to two out of three operator sites and causing the DNA between the bound sites to fold into a loop.
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