Mean square displacement (MSD) curves for the lateral (a) and vertical (b) self-diffusion; and rotational autocorrelation functions (RAF) for the parallel (c) and perpendicular (d) rotation about and relative to the molecular axis, of Chol molecules in the Chol-2 (black line) and POPC-Chol50 (gray line) bilayers. In (a) and (b), motion of CMs of Chol molecules is calculated, and additionally in (a), the light gray curve is MSD for POPC molecules in the POPC-Chol50 bilayer. In (c) and (d), the insets show decays of the RAFs within first 2 ns.