Table 1.

Parameters of Eq. 2 fitted to the data of Fig. 5f

	δ	${\upsilon }_0$	γ	ε	${\upsilon }_{\text{offset}}^{+}$	${\upsilon }_{\text{offset}}^{-}$	${\chi }_{red}^2$
	(nm)	(nm/s)	(μNs/m)	(nm)	(μm/s)	(μm/s)
Kip3	7.5 ± 0.7	185 ± 53	3.0 ± 0.9	0.1 ± 0.1	3.5 ± 0.1	2.5 ± 0.1	0.7
Kif18A	13 ± 3	64 ± 39	4.9 ± 3.2	0.9 ± 0.3	0.9 ± 0.1	1.4 ± 0.2	1.2

Errors are mean ± SE. The reduced χ²-value ${\chi }_{red}^2$ is the χ²-value divided by the degrees of freedom.