Rab GTPases

Rab GTPases are a family of proteins that act like molecular switches to control how cells organize and transport materials internally. They help coordinate the movement of vesicles—tiny sacs that carry proteins, lipids, and other molecules—ensuring these cargoes reach their correct destinations within the cell. By switching between active and inactive states, Rab GTPases regulate processes like secretion, endocytosis, and organelle maintenance, maintaining cellular organization and function. Their precise control is essential for healthy cell activity and communication.