which-of-the-following-correctly-describes-the-role-of-gdp-and-gtp-in-the-activa

Question

Which of the following correctly describes the role of GDP and GTP in the activation of G protein-coupled receptors?

Accepted Answer

GDP is replaced by GTP in the alpha subunit of protein G, activating the protein.

Answer

GTP is hydrolyzed to GDP, which activates the receptor.

Answer

GDP binds to the receptor, causing it to activate protein G.

Answer

GTP is synthesized by the receptor to activate protein G.