“…1,2‐Dipalmitoyl‐rac‐glycero‐3‐phosphocholine (PC) and 1,2‐dipalmitoyl‐rac‐glycero‐3‐phospho‐ L ‐serine (PS) were purchased from Sigma‐Aldrich Co. (Tokyo, Japan). To obtain large and homogeneous unilamellar vesicles (LUV), we used a lipid extrusion protocol as described by previous reports 19, 20. Briefly, the lipid was hydrated in 20 m M sodium phosphate buffer, pH 7.0 (PBS) for 1 h, vortexed, and the resulting dispersions were extruded through a polycarbonate filter (pore size of 100 nm), 20 times, using a Mini Extruder (Avanti Polar Lipids, Inc., Alabaster, AL).…”