Figure 5.

Dependence of the peptide velocity on the peptide diffusion coefficient (A), Debye length (B), magnitude of the lipid gradient (C), and total charge (D). Simulation results (solid circles) are compared with the values predicted by Eq. 8 (open circles). In A, $D^{\prime }$ is as defined in Fig. 4A and in the text. When not otherwise shown in the figure, the peptide diffusion coefficient is $0.2D_0$ and the lipid gradient is $0.6\%/\text{n}\text{m}$.