translocates to the plus ends of interdigitating spindle microtubules during the metaphase to anaphase transition, an essential step for the formation of an organized central spindle midzone and midbody and for successful cytokinesis. Acts as a microtubule-binding and bundling protein both in vivo and vitro. Interacts with the C-terminal Rho-GAP domain and the basic region of MgcRacGAP. The interaction with MgcRacGAP inhibits its GAP activity towards CDC42 in vitro, which may be required for maintaining normal spindle morphology. Interacts separately via its N-terminal region with the C-terminus of CENPE, KIF4A and KIF23 during late mitosis. Note: This description may include information from UniProtKB.
Protein type: Motility/polarity/chemotaxis; Microtubule binding protein; Cell cycle regulation; Cytoskeletal protein
SS: The number of records in which this modification site was determined using site-specific methods. SS methods include amino acid sequencing, site-directed mutagenesis, modification site-specific antibodies, specific MS strategies, etc.