You have isolated a novel protein, characterized its structure and determined that it catalyzes the breakdown of a large substrate and has two binding sites. One of these is large, apparently the binding site for the large substrate; the other is small, possibly a binding site for a regulatory molecule. What do these findings suggest to you about the mode of action of this protein?

Question

Quizplus · Accepted Answer

The presence of two binding sites, one for a large substrate and another potentially for a regulatory molecule, suggests that the protein functions as an enzyme with allosteric regulation. Allosteric regulation involves the binding of an effector molecule at a site other than the enzyme's active site, leading to a change in the enzyme's activity.

You Have Isolated a Novel Protein, Characterized Its Structure and Determined