The oscillation frequency is related to some parameters. (a) The oscillation frequency increases with motor stiffness k_m, where k_s = 1.0 pN/nm per motor, ω_on = 40 s⁻¹, and Δz/b = 0.1. (b) The oscillation frequency increases with motor binding rate ω_on, where k_s = 0.5 pN/nm per motor, k_m = 80 pN/nm, and Δz/b = 0.1. (c) The oscillation frequency increases with the decrease of Δz/b, where k_s = 0.5 pN/nm per motor, k_m = 80 pN/nm, and ω_on = 40 s⁻¹. (d) The oscillation frequency increases with spring stiffness k_s, where k_m = 80 pN/nm, ω_on = 1000 s⁻¹, and Δ z/b = 0.1. (e) The oscillation frequency is a few Hz when k_s = 0.05 pN/nm per motor, k_m = 20 pN/nm, ω_on = 40 s⁻¹, and Δz/b = 0.1. The other parameters are the same as those in Fig. 2.