Table 4. Antiparallel microtubule gliding rates of Kinesin-5 proteins.

Using purified kinesin protein, bulk-measurement rates of microtubule motion were recorded in motility assays. Noted are the oligomeric state of the kinesin protein, buffer, pH, and salt/osmolyte concentration.

Kinesin-5isoform	Oligomeric State	Buffer (pH)	Salt/Other (Osmolyte)	Velocity (nm/s)	Reference
X. laevis	native tetramer	80 mM PIPES (6.8)	80 mM KCl	28.0	(Kapitein et al., 2008)
	native tetramer	80 mM PIPES (6.8)	-	40.2	Kapitein et al., 2006
	native tetramer	70 mM PIPES (6.8)	80 mM KCl	45.6	(Weinger et al., 2011)
	native tetramer	70 mM PIPES (6.8)	60 mM KCl	35.0	(Kapitein et al., 2008)