Members of this family are components of the mitotic spindle. It has been shown that Ndc80/HEC from yeast is part of a complex called the Ndc80p complex [1]. This complex is thought to bind to the microtubules of the spindle.

1: The Ndc80p complex from Saccharomyces cerevisiae contains conserved centromere components and has a function in chromosome segregation. Wigge PA, Kilmartin JV; J Cell Biol 2001;152:349-360. PMID:11266451