sentences:  Intriguingly, EB1 overexpression enhances Aurora B kinase activity, at least in part because EB1 blocks the dephosphorylation/inactivation of Aurora B by protein phosphatase 2A.Studies in several organisms indicate that Aurora B oversees chromosome biorientation by ensuring that appropriate connections are made between spindle microtubules and kinetochores.Inhibition of Aurora B function by RNA interference or microinjection of blocking antibodies impairs the alignment of chromosomes at the equator of the mitotic spindle.