The Spc42p associates with Spc110p and Spc29p, two other essential coiled-coil proteins that localize to the nuclear face of the SPB.
A Spc42p asóciase coa Spc110p e a Spc29p, outras dúas proteínas esenciais de hélice superenrolada que se localizan na cara nuclear do corpo polar do fuso.