Cancer-related genes, Plasma proteins
Intracellular
Low cell type specificity
Low immune cell specificity
Low cell line specificity
Homodimer (PubMed:10075938). Also forms multiarm oligomers by association of C-terminal tail domains, oligomers may further assemble to form a hexagonal nuclear lattice-like network (PubMed:10075938). Associates with the dynein-dynactin complex; this association promotes the transport and accumulation of NUMA1 at the mitotic spindle poles that is inhibited by the BRISC complex in a PLK1-dependent manner (PubMed:10811826, PubMed:17172455, PubMed:23027904, PubMed:22327364, PubMed:26195665). Part of a spindle orientation complex at least composed of GNAI1, GPSM2 and NUMA1 (PubMed:26766442). Interacts (via C-terminus) with microtubules (MTs); this interaction is direct and promotes both MT bundle formation and stability in a dynein-dynactin complex- and CDK1-independent manner (PubMed:12445386, PubMed:11956313, PubMed:26765568). Interacts with EPB41 and EPB41L2; these interactions are negatively regulated by CDK1 during metaphase and are important for anaphase-specific localization of NUMA1 in symmetrically dividing cells (PubMed:23870127, PubMed:24996901). Interacts (via C-terminus) with GPSM2 (via TPR repeats); this interaction is direct, prevented by competitive binding of INSC, is inhibited in a PLK1-dependent manner, blocks the association of NUMA1 with MTs and inhibits NUMA1-induced MT bundle formation, prevents the association of NUMA1 with SPAG5, induces mitotic spindle pole localization of GPSM2, both metaphase cell cortex localization of NUMA1 and mitotic spindle organization (PubMed:11781568, PubMed:12445386, PubMed:22327364, PubMed:24109598, PubMed:27462074, PubMed:21816348). Does not interact with GPSM2 during anaphase (PubMed:23870127). Interacts (via C-terminus) with the nuclear importin alpha/importin beta receptor; this interaction is inhibited by RanGTP (PubMed:11163243). Interacts (via C-terminus) with KPNB1; this interaction is inhibited by RanGTP and the BRISC complex (PubMed:11229403, PubMed:26195665). Interacts with ABRAXAS2 and the BRISC complex; these interactions regulate mitotic spindle assembly (PubMed:26195665). Interacts (via N-terminal end of the coiled-coil domain) with RAE1; this interaction promotes mitotic spindle formation (PubMed:17172455). Interacts (via C-terminus) with SPAG5 (via C-terminus); this interaction promotes the recruitment of SPAG5 to the MTs at spindle poles in a dynein-dynactin-dependent manner and regulates mitotic spindle organization and proper chromosome alignment during mitosis (PubMed:27462074). Interacts with TNKS; this interaction occurs at the onset of mitosis (PubMed:12080061, PubMed:16076287). Interacts with TNKS2 (PubMed:12080061). Interacts with tubulin (PubMed:11956313). Interacts with KHDC3L (via C-terminus) (By similarity).
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For Research Use Only. Not For Clinical Use.