Allosteric control of enzyme action requires
A) a cofactor derived from a vitamin.
B) a metal ion.
C) the conversion of one form of the enzyme to another by the action of proteolytic enzymes.
D) a conformational change in an enzyme that changes its catalytic activity.
E) an effector that is the product of the enzymatic reaction and which competes for the active site of the enzyme.

Question

Quizplus · Accepted Answer

Allosteric control of enzyme action involves a conformational change in the enzyme's structure, resulting in a change in its catalytic activity. This change can be caused by the binding of an effector molecule at a location other than the enzyme's active site, resulting in a change in the enzyme's structure and activity. Other choices either do not apply to allosteric control or are not specific enough to describe the mechanism.

Allosteric Control of Enzyme Action Requires