Which of the Following Neurotransmitters are Known to Bind to G-Protein

Question

Which of the following neurotransmitters are known to bind to G-protein coupled receptors?
A) epinephrine
B) serotonin
C) dopamine
D) GABA
E) All of these bind to G-protein coupled receptors.

Accepted Answer

All of the neurotransmitters listed (epinephrine, serotonin, dopamine, and GABA) are known to bind to G-protein coupled receptors.