CAVIN1 (Caveolae Associated Protein 1): CAVIN1 is a key protein required for the formation and function of caveolae — small plasma membrane invaginations involved in processes such as endocytosis and signal transduction. It supports lipid metabolism, endothelial health, and cellular mechanoprotection. Mutations in CAVIN1 are associated with conditions like lipodystrophy and muscular dystrophies, underscoring its role in cell structure and metabolism.