Lac operon

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Title: Lac operon

Essay Details:

Subject: Science

Author: Clarence B

Date: May 4, 2016

Level: University

Grade: B

Length: 4 / 1060

Essay text:

Lac A codes for transacetylase, which detoxifies certain byproducts of lactose metabolism [1,2]. In addition, there is a Promoter region, the binding site for RNA polymerase, and an Operator region, the binding site for repressor protein. In the present of lactose, it binds to the repressor protein and induces a conformational change that prevents the repressor protein from binding to the Operator. As a result, RNA polymerase is able to proceed, and encodes Lac Z, Lac Y and Lac A into ?-galactosidase, permease, and transacetylase, respectively, Figure 1 [3]. Consequently, lactose is metabolized...

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