This family of microtubule-associated proteins has a role in spindle microtubule organisation [1,2]

1: NuSAP, a novel microtubule-associated protein involved in mitotic spindle organization. Raemaekers T, Ribbeck K, Beaudouin J, Annaert W, Van Camp M, Stockmans I, Smets N, Bouillon R, Ellenberg J, Carmeliet G; J Cell Biol. 2003;162:1017-1029. PMID:12963707

2: A role for NuSAP in linking microtubules to mitotic chromosomes. Ribbeck K, Raemaekers T, Carmeliet G, Mattaj IW; Curr Biol. 2007;17:230-236. PMID:17276916