NCIt definition : Nuclear mitotic apparatus protein 1 (2115 aa, 238 kDa) is encoded by the human NUMA1
gene. This protein may play a role in the formation of the mitotic spindle.;
NCIt note : Nuclear Mitotic Apparatus Protein 1 is a structural component of the nucleus containing
the largest known protein coiled-coil region, present throughout the interphase nucleus,
and localized to the mitotic spindle apparatus. Required for organizing mitotic spindle
poles, NUMA1 also appears to have a role in nuclear reassembly in late mitosis. NUMA
C-terminal region specifically interacts with nuclear transport factor Importin-beta,
which inhibits microtubule aster assembly.;