When epinephrine binds to its G-protein linked receptor,
A)adenylyl cyclase is activated producing cAMP.
B)kinase is activated producing calcium.
C)enzyme linked receptors is activated producing protein kinase.
D)kinase is activated producing transcription factor.
E)phospholipase C is activated producing diacylglyceridE.

Question

Quizplus · Accepted Answer

When epinephrine binds to its G-protein linked receptor, it activates the G protein, which in turn activates adenylyl cyclase. Adenylyl cyclase converts ATP to cyclic adenosine monophosphate (cAMP), which activates protein kinase A, leading to a cascade of downstream effects. Therefore, choice A is the best answer.

When Epinephrine Binds to Its G-Protein Linked Receptor