The Following Happens When a G-Protein-Coupled Receptor Activates a G

question 42

Multiple Choice

The following happens when a G-protein-coupled receptor activates a G protein.

• A)The β subunit exchanges its bound GDP for GTP.
• B)The GDP bound to the α subunit is phosphorylated to form bound GTP.
• C)The α subunit exchanges its bound GDP for GTP.
• D)It activates the α subunit and inactivates the βγ complex.