Figure 5.

Properties of acyl carbons that follow square-law dependence of relaxation rates and order parameters in simulated bilayers. (A) Distance from the bilayer center as a function of the squared order parameter |S_CD|² for each carbon in the bilayers with 0 mol % and 50 mol % cholesterol. Filled symbols indicate the carbons used for the square-law fits. (B) Number density profiles including all atoms of the simulated bilayers with 0, 20, 33, and 50 mol % cholesterol. Color-coded highlighted areas show the regions of the carbon atoms used in the square-law fits for the corresponding bilayers. The carbons that follow the square-law dependence are within the region where lipid dynamics are influenced by interleaflet interactions. All simulations were performed at 44°C. To see this figure in color, go online.