PDCD6IP (Programmed Cell Death 6 Interacting Protein): PDCD6IP is a protein that reflects the balance and regulation of key cellular processes. Also known as ALIX, it is involved in endocytosis, membrane repair, and cell death pathways. PDCD6IP plays a critical role in multivesicular body formation and the budding of enveloped viruses, such as HIV. Dysfunctions in PDCD6IP are associated with neurodegenerative diseases and cancer, underscoring its importance in autophagy, apoptosis, and overall cellular homeostasis.