Do Competitive Inhibitors Bind to the Active Site?

The competitive inhibitor resembles the substrate and binds to the active site of the enzyme (Figure 8.15). The substrate is thereby prevented from binding to the same active site. A competitive inhibitor diminishes the rate of catalysis by reducing the proportion of enzyme molecules bound to a substrate.

Can a competitive inhibitor outcompete the substrate for the active site?

Competitive inhibitors bind the active site of enzymes, and compete with the substrate for this binding site. Thus, the does not change since if enough substrate is added, regardless of the differential affinities between the substrate and inhibitor for the active site, the substrate will outcompete the inhibitor.

Do competitive inhibitors bind temporarily?

Therefore less substrate molecules can bind to the enzymes so the reaction rate is decreased. Competitive Inhibition is usually temporary, and the Inhibitor eventually leaves the enzyme.

Alexander Ross

Alexander Ross

Gaming, Esports & Interactive Media Writer

Alexander Ross has covered the video game industry for a decade, writing deep dives on game design, esports tournaments, VR developments, and gaming culture.