Learn about the lac operon , a group of genes involved in lactose metabolism in bacteria. Find out how it is regulated by lactose, glucose, and other factors, and see diagrams of its structure and function. What is an operon : Explain the Regulator, Operator, Promoter region and Structural genes of Operon . Know more about Regulation of lac operon and Gene Expression at Aakash The lactose operon (lac operon ) is an operon required for the transport and metabolism of lactose in E. coli and many other enteric bacteria. Although glucose is the preferred carbon source for most enteric bacteria, the lac operon allows for the effective digestion of lactose when glucose is not available through the activity of β-galactosidase. [1] Gene regulation of the lac operon was the first genetic regulatory mechanism to be understood clearly, so it has become a foremost example of ... Regulation of genes for lactose utilization. lac repressor, catabolite activator protein, and cAMP.
