Fig. 4A: An Inducible Operon in the Absence of an Inducer (The Lactose Operon of Escherichia coli)

Step 1: The Regulator gene (lacI) codes for an active repressor protein.
Step 2: The repressor protein then binds to the Operator region of the lac operon.

Illustration of An Inducible Operon in the Absence of an Inducer (The Lactose Operon of Escherichia coli).jpg by Gary E. Kaiser, Ph.D.
Professor of Microbiology, The Community College of Baltimore County, Catonsville Campus
This work is licensed under a Creative Commons Attribution 4.0 International License.
Based on a work at https://cwoer.ccbcmd.edu/science/microbiology/index_gos.html.

Last updated: September, 2018
Please send comments and inquiries to Dr. Gary Kaiser