The activation of protein kinase A by cyclic AMP binding likely occurs because of:
A)the activity of a phosphatase.
B)the binding of GTP to protein kinase A.
C)the phosphorylation of protein kinase A.
D)a conformational change to protein kinase A.

Question

Quizplus · Accepted Answer

The binding of cyclic AMP to protein kinase A causes a conformational change that activates the enzyme. This activation does not involve phosphatases or the binding of GTP, and initial activation of protein kinase A does not require phosphorylation.

The Activation of Protein Kinase a by Cyclic AMP Binding