This protein, which interacts with both microtubules and TRAF3 (tumour necrosis factor receptor-associated factor 3), is conserved from worms to humans. The N-terminal region is the microtubule binding domain and is well-conserved; the C-terminal 100 residues, also well-conserved, constitute the coiled-coil region which binds to TRAF3. The central region of the protein is rich in lysine and glutamic acid and carries KKE motifs which may also be necessary for tubulin-binding, but this region is the least well-conserved [1].

1: MIP-T3, a novel protein linking tumor necrosis factor receptor-associated factor 3 to the microtubule network. Ling L, Goeddel DV; J Biol Chem. 2000;275:23852-23860. PMID:10791955

2: Intraflagellar transport proteins 172, 80, 57, 54, 38, and 20 form a stable tubulin-binding IFT-B2 complex. Taschner M, Weber K, Mourao A, Vetter M, Awasthi M, Stiegler M, Bhogaraju S, Lorentzen E; EMBO J. 2016;35:773-790. PMID:26912722