TBC1 domain family member 3G (TBC1D3G)

TBC1 domain family member 3G is a member of the TBC1D3 protein family, which functions as a GTPase-activating protein (GAP) predominantly for RAB5, a small GTPase controlling early endosomal trafficking[3][5]. TBC1D3G is located on the plasma membrane and is involved in regulating membrane traffic, cellular signaling, and extracellular vesicle formation[1][3][5]. The protein influences cellular processes by modulating the phosphorylation and ubiquitination of growth factor signaling pathways and can affect cell proliferation and migration, particularly in cancer cells[1][2]. Overexpression of TBC1D3G and family members is correlated with poor prognosis in certain cancers, such as kidney renal clear cell carcinoma, due to increased tumor cell proliferation and altered immune infiltration[2][6]. There are no drugs currently approved or documented to interact directly with TBC1D3G. Its potential as a prognostic biomarker and therapeutic target is being explored, mainly within oncology, immunology, and metabolic disease contexts[2][4][6].

Other names

TBC1D3GTBC1D3TBC1D3CTBC1D3DTBC1 domain family member 3CTBC1 domain family member-like

Drugs or molecules targeting TBC1D3G would likely modulate its GAP activity, thereby affecting RAB5-mediated endosomal trafficking and cellular signaling. However, no direct drugs have been established