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Mean velocity, v, of a composite LEF, plotted versus ΔG/(kBT) and Δg/(kBT) for model 1 (left) and model 2 (right) for k+ = 0.05 per time step, k− = 5.0 × 10−7 per time step, m+ = 0.3 per time step, m− = 0.0003 per time step, and (for model 2) α = 1 per time step. The cyan, green, and magenta points on the model-2 curve correspond to the theoretical mean velocities of the composite LEFs whose positions versus time are shown in Fig. 2.
