Description
Ras-related protein Rab-3A is a small GTPase belonging to the Rab family, which is involved in regulating various membrane trafficking events within the secretory pathway. Rab-3A specifically plays a role in exocytosis, the process by which secretory vesicles fuse with the plasma membrane to release their cargo. It is encoded by the bovine gene RAB3A. It belongs to a large family of small GTP-binding proteins found in eukaryotic cells and shares amino acid identity with Ras proteins