GTPases can be classified into several families based on their structure and function. The major families include:
Ras GTPases: Involved in cell growth, differentiation, and survival. Rho GTPases: Regulate the actin cytoskeleton, cell morphology, and motility. Rab GTPases: Important for vesicle trafficking and membrane transport. Ran GTPases: Play a role in nucleocytoplasmic transport. Arf GTPases: Involved in vesicle formation and trafficking.
