What happens when an enzyme is bound by an allosteric activator?

An allosteric activator is a molecule that binds to an enzyme at an allosteric site, which is distinct from the active site. When an enzyme is bound by an allosteric activator, it induces a change in the 3-dimensional shape of the enzyme, which enhances the affinity of the enzyme’s active site/s for its substrate/s, effectively improving enzyme activity and efficiency.