Rab34, member RAS oncogene family (RAB34)

Rab34 is a **small GTPase** of the Ras superfamily that orchestrates **intracellular vesicle trafficking**, controls **lysosome positioning**, and regulates **macropinocytosis**[1][3]. It localizes mainly to the Golgi apparatus and plays a pivotal role in the formation and function of the **primary cilium**, coordinating early steps in ciliary vesicle formation and axoneme development[1][2][3]. Rab34 influences a spectrum of cell processes, including cargo transport, immune phagosome maturation, and metabolic regulation. It interacts with key effectors—such as Rab‐interacting lysosomal protein (RILP)—and aberrant expression has been implicated in tumor development and progression (notably in glioma and hepatocellular carcinoma), ciliopathies, and possibly metabolic disorders[1][3][4]. Mutation or dysregulation of Rab34 affects processes ranging from **Hedgehog signaling transduction** (critical for development) to **cell migration and invasion** in cancer[1][4]. There are no known direct pharmacological agents targeting Rab34 as of current data.

Other names

Rab34NARR (for nine-amino acid residue-repeats isoform)RAB39RAH[6][7]