Velocity and run length results.

Experimental run length (mean ± SE of exponential fit (N)) and velocity (mean ± SD (N)) of Kinesin-1 and Kinesin-1+DAL were taken from bead assays at saturating ATP (1 mM) from Muthukrishnan et al. [17]. Run lengths and velocities from simulations used the model structure shown in Figure 1 with parameters given in Table 1 and 1 mM ATP concentration. Run length (nm) and velocity (nm/s) reported as mean ± SEM for 50 runs each.