Figure 8.

Log–log plots of mean-square displacements vs time for DPPC, cholesterol (excluding flip-flops), and the gp41 TM α-helix. The displacements measured after monolayer COM motion was removed are graphed in panels A–C and after bilayer COM motion was removed in panels D–F. In panels A, B, D, and E, “UL” and “LL” refer to upper and lower leaflets, respectively. Panels C and F both show a sudden drop in diffusivity from 10³ to 10⁴ caused by the lack of statistics for the peptide at long time scales.