Human Anoctamin 6 (ANO6) Protein

Background

ANO6, also known as TMEM16F, is a dual-function protein acting as a calcium-activated phospholipid scramblase and ion channel. It plays a critical role in plasma membrane repair, cell death (apoptosis), and blood coagulation by regulating the externalization of phosphatidylserine (PS), a process essential for platelet activation and membrane remodeling. ANO6 is expressed in various tissues, including the hematopoietic system, skeletal muscle, and immune cells. Mutations in ANO6 cause Scott syndrome, a rare bleeding disorder characterized by impaired PS exposure on platelet surfaces, which disrupts proper blood clotting. ANO6 also contributes to cellular responses to mechanical stress, apoptosis, and bone development. Its roles in membrane repair and phospholipid scrambling underscore its importance in cell survival, homeostasis, and coagulation.