Derive Michaelis-Menten equation for an uncompetitive inhibitor.

Question

08 Feb 2025

Answer :

Word Count : 469

The Michaelis-Menten equation for an uncompetitive inhibitor can be derived by considering the interactions between the enzyme (E), the substrate (S), and the inhibitor (I). Uncompetitive inhibition occurs when the inhibitor binds only to the enzyme-substrate complex (ES) and not to the free enzyme. This binding effectively reduces the concentration of the enzyme-substrate complex available for catalysis.

Step 1: Define the reactions

For an enzyme-catalyzed reaction without an inhibitor, the following equilibrium exists:

E+S⇌ES→k2E+PE + S \rightleftharpoons ES ___ _______ ___ ______ _____ ________ _____.
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