PM lipid distributions. Pie charts with the overall distribution of the main lipid headgroups and level of tail unsaturation in the outer/inner leaflet, as well as snapshots of the outer/inner leaflet of the simulations after 80 μs, are shown for the Average (A) and Brain membranes (B). The lipids in the snapshots are colored as follows: PC, blue; PE, cyan; SM, gray; PS, green; glycolipids (Glyco), red; PI, pink; PA, white; PIPs, magenta; CER, ice blue; Lyso, orange; DAG, brown; and cholesterol, yellow.