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(a–c) Calculated free-energy profiles of peptide translocation across the lipid bilayer as a function of distance between peptide and membrane centers of mass. In each graph, there are peptides of the same length whereas the hydrophobic content (patch width 90, 170, or 255°) and its distribution (AE, NE) are varied. (d) The probability density distribution of lipid head and tail beads showing the membrane thickness is shown. CoM, center of mass. To see this figure in color, go online.
