KIF13B and neoplasm: Domain specific analysis of KIF13B in mammals has demonstrated that KIF13B likely interacts with two important polarity determining factors; the Discs large (Dlg) tumor suppressor and the PIP3 adapter protein centaurin‐alpha 1.38, 39, 40, 41, 42 Binding sites for both family of proteins are near the motor's N‐terminal FHA domains.