NUMA 1, NuMA protein, NUMA1, SP H antigen, Structural nuclear protein, Centrophilin stabilizes mitotic spindle in mitotic cells, Nuclear mitotic apparatus protein 1, Nuclear mitotic apparatus protein.
NuMA (Nuclear Mitotic Apparatus Protein) is an intranuclear protein and present in nucleus during interphase. At the onset of mitosis, it redistributes from the nucleus to two centrosomal structures that later will become part of the mitotic spindle pole. After anaphase, the protein redistributes from the spindle polar region into reforming nucleus. NuMA is an essential protein during mitosis for the terminal phases of chromosome separation and/or nuclear reassembly. Recently a study shows that NuMA is cleaved to a 180 to 200kDa during apoptosis.
