The mitotic kinesin-14 Ncd drives directional microtubule–microtubule sliding

Kinesin-14 (Ncd in Drosophila, and Klp2 in fission yeast) is a microtubule-based motor important for spindle assembly. Ncd and Klp2 mediate both sliding of anti-parallel microtubules and crosslinking of parallel ones.