TABLE 2:

D. melanogaster Kinesin-5 minitetramer motor-motility properties

kMBX	Velocity (nm/s)	Run length (nm)	Run time (s)	Merging freq (μm–1min–1)	MT plus-end dwell time(s)
25 mM KCl	115 ± 3n = 340	N/A	N/A	N/A	N/A
50 mM KCl	144 ± 6n = 136	1014 ± 222	9 ± 1	0.006 ± 0.001	78 ± 19
100 mM KCl	156 ± 8n = 66	2137 ± 428	16 ± 4	0.001 ± 0.0007	25 ± 18
kMBXt
25 mM KCl	78 ± 4n = 52	3832 ± 433	56 ± 8	0.007 ± 0.002	125 ± 51
50 mM KCl	127 ± 4n = 136	3135 ± 222	29 ± 1	0.011 ± 0.002	117 ± 15
100 mM KCl	114 ± 5n = 88	5060 ± 605	51 ± 7	0.050 ± 0.008	267 ± 45
125 mM KCl	136 ± 4n = 149	5440 ± 362	45 ± 4	0.023 ± 0.006	147 ± 34
150 mM KCl	119 ± 6n = 19	3347 ± 538	29 ± 5	0.001 ± 0.0008	25 ± 17