Which of the following is an example of cooperativity?
A)binding of an ATP molecule along with another substrate in an active site
B)binding of a molecule to one subunit of an enzyme,which promotes faster binding to each of the other subunits of the enzyme
C)the product of one enzyme in a metabolic pathway serving as the substrate for the next enzyme in the pathway
D)binding of the end product of a metabolic pathway to the enzyme that catalyzes the first step in the pathway

Question

Quizplus · Accepted Answer

Cooperativity refers to the phenomenon where the binding or activity of one subunit of a protein influences the binding or activity of another subunit in the protein. In option B, binding of a molecule to one subunit of an enzyme promotes faster binding to each of the other subunits, which is an example of cooperativity. Option A describes substrate-level phosphorylation and option C describes a metabolic pathway, but neither involves cooperativity. Option D describes feedback inhibition, which is not an example of cooperativity.

Which of the Following Is an Example of Cooperativity