Transient-Phase and Steady-State Kinetics for Inhibited Enzyme Systems. I. Single-Intermediate Mechanisms

Abstract
Equations for the pre-steady state and the steady state are derived for enzyme systems in which enzyme E, substrate A, and inhibitor Q are present, the enzyme concentration being lower than the substrate and inhibitor concentrations. It is assumed that the mechanism involves a single intermediate EA. Equations for competitive, anticompetitive, and pure noncompetitive inhibition are derived. When the inhibition is reversible the transient phase is followed by the establishment of a steady state. Analysis of experimental results is discussed for each type of inhibition. If the inhibition is irreversible, there is no steady state.

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