Monomeric G proteins, such as Ras and several elongation factors, are usually in the active state when a molecule of _______ is bound to them.

Question

Quizplus · Accepted Answer

Monomeric G proteins such as Ras and several elongation factors are usually in the active state when a molecule of GTP (guanosine triphosphate) is bound to them. GDP (guanosine diphosphate) is the inactive form of GTP, so binding of GTP activates the G protein. ADP (adenosine diphosphate) and ATP (adenosine triphosphate) are not directly involved in the activation of monomeric G proteins.

Monomeric G Proteins, Such as Ras and Several Elongation Factors