The allosteric activator binds to an enzyme at a site other than the active site. The shape of the active site is changed, allowing substrate to bind at a higher affinity. ... 3 This is considered allosteric regulation because the substrate affects active sites far from its binding site.

What is the purpose of allosteric regulation?

Allosteric regulation is important because it permits a more dynamic and complex control of enzyme activity, while allowing the cell to use almost identical enzymes, thereby conserving its resources.

Why does allosteric site occur?

The allosteric site allows molecules to either activate or inhibit, or turn off, enzyme activity. These molecules bind the allosteric site and change the confirmation, or shape, of the enzyme. Molecules that turn off enzymes are called allosteric inhibitors.