What is a function of the G-protein βγ dimer?
A) As an anchor protein in the membrane
B) Exchange of GTP for GDP
C) Hydrolysis of GTP
D) Regulation of ion channel opening
E) Regulation of phosphodiesterase activity

Question

Quizplus · Accepted Answer

The G-protein βγ dimer has the function of regulating ion channel opening by interacting directly with ion channels.

Answer: E
 The G-protein βγ dimer can also regulate phosphodiesterase activity by binding to and modulating their function.

What Is a Function of the G-Protein βγ Dimer