a-mutation-in-the-alpha-subunit-of-a-g-protein-prevents-gtp-binding-what-is-the-

Question

A mutation in the alpha subunit of a G protein prevents GTP binding. What is the likely consequence of this mutation?

Accepted Answer

The G protein remains inactive, unable to activate effector enzymes.

Answer

The G protein dissociates into its subunits without GTP binding.

Answer

The G protein can bind ATP instead of GTP.

Answer

The G protein becomes permanently active, continuously activating effector enzymes.