Fig. 12: Competitive Antagonism

The drug resembles a bacterial substrate and competes with that substrate for the limited bacterial enzyme. The drug ties up the enzyme making it unavailable for reaction with its normal substrate. As a result, end product is not made.

Illustration of Competitive Antagonism.jpg by Gary E. Kaiser, Ph.D.
Professor of Microbiology, The Community College of Baltimore County, Catonsville Campus
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Last updated: September, 2018
Please send comments and inquiries to Dr. Gary Kaiser