Role of small GTPases in polarized vesicle transport to primary cilium

Small GTPases play crucial roles in regulating polarized vesicle trafficking in a cell. These molecules are involved in diverse pathways and regulate cell shape, organelle integrity, and cell signaling. One of the most important cellular signaling centers is the primary or sensory cilium. Small GTPases orchestrate a diverse set of events to not only generate these structures but also mediate their function and maintenance during the life of the cell. In this review, we will discuss the various small GTPases involved in regulating cilia biogenesis and function and their involvement in human diseases.