Rab GTPases are members of Ras super family and serve as master regulators of vesicular membrane transport on both the exo- and endocytic pathways.

• Rab蛋白是一类小分子GTPase,属于Ras超家族成员，在真核细胞囊泡运输与细胞间信息传递中起到十分重要的作用。