Figure 3.

Estimates of motility coefficient and velocity from experimental and simulated data. (A) The histogram of the motility coefficients obtained for n = 403 cells, μ_exp = 1.61 ± 0.14 μm² min⁻¹ (mean ± standard error (SE)), is shown. (B) The histogram of the velocities obtained for the cells in (A), v_exp = 0.51 ± 0.02 μm min⁻¹ (mean ± SE), is shown. (C) The histogram of the motility coefficients obtained for n = 60 individual simulated trajectories with ψ_pol = 0.9, μ_sim = 7.27 ± 0.80 μm² min⁻¹ (mean ± SE) is shown. (D) The histogram of the velocities obtained for n = 60 individual simulated trajectories with ψ_pol = 0.9, v_sim = 0.37 ± 0.04 μm min⁻¹ (mean ± SE) is shown. Individual motility coefficients and velocities were obtained from fits to Eq. 2. All simulations were run with n_motor = 1000, n_clutch = 750, and ψ_pol = 0.9, and all other parameter values reported in Table S1.