Anti-Mitosin Antibody

Cytoplasm, perinuclear region. Nucleus matrix. Chromosome, centromere, kinetochore. Cytoplasm, cytoskeleton, spindle. Note=Relocalizes to the kinetochore/centromere (coronal surface of the outer plate) and the spindle during mitosis. Observed in nucleus during interphase but not in the nucleolus. At metaphase becomes localized to areas including kinetochore and mitotic apparatus as well as cytoplasm. By telophase, is concentrated within the intracellular bridge at either side of the mid-body.

Required for kinetochore function and chromosome segregation in mitosis. Required for kinetochore localization of dynein, LIS1, NDE1 and NDEL1. Regulates recycling of the plasma membrane by acting as a link between recycling vesicles and the microtubule network though its association with STX4 and SNAP25. Acts as a potential inhibitor of pocket protein-mediated cellular processes during development by regulating the activity of RB proteins during cell division and proliferation. May play a regulatory or permissive role in the normal embryonic cardiomyocyte cell cycle and in promoting continued mitosis in transformed, abnormally dividing neonatal cardiomyocytes. Interaction with RB directs embryonic stem cells toward a cardiac lineage. Involved in the regulation of DNA synthesis and hence cell cycle progression, via its C-terminus. Has a potential role regulating skeletal myogenesis and in cell differentiation in embryogenesis. Involved in dendritic cell regulation of T-cell immunity against chlamydia. {PubMed:12974617, PubMed:17600710, PubMed:7542657, PubMed:7651420}.

Immunoblotting: use at 1-10 ug/mL. <br><br>Immunoprecipitation: use at 1-10 ug/mL. <br><br>Immunohistochemistry: use at 10 ug/mL with frozen or paraffin-embedded sections. <br><br>Positive controls: Human tissue containing rapidly proliferating cells, such as lymphoid germinal centers.

This antibody recognizes mitosin, a 350 kD phosphoprotein that is specifically involved in mitotic-phase progression. Mitosin is expressed throughout S, G2, and M phases of the cell cycle, but is absent in G0 and G1. It associates with the mitotic apparatus during M-phase and is redistributed from the nucleus to the centromere, spindle, and midbody during M-phase progression. Its usefulness as a proliferation marker is under active investigation.