AMBRA1 (Autophagy and Beclin 1 Regulator 1): AMBRA1 is a key protein that regulates autophagy, the process by which cells degrade and recycle their components. It supports cell survival during stress by working with BECN1 (Beclin 1) to initiate autophagosome formation. Proper function of AMBRA1 is essential for cellular homeostasis, and its dysregulation has been associated with developmental disorders and neurodegenerative diseases.