Bmi1 Mouse monoclonal Antibody IgG
Fig1: Western blot analysis of Bmi1 on Hela (1) and NIH-3T3 (2) using anti-Bmi1 antibody at 1/500 dilution.
Fig2: ICC staining Bmi1 (green) in SH-SY-5Y cells. The nuclear counter stain is DAPI (blue). Cells were fixed in paraformaldehyde, permeabilised with 0.25% Triton X100/PBS.
Fig3: Immunohistochemical analysis of paraffin-embedded human colon cancer tissue using anti-Bmi1 antibody. Counter stained with hematoxylin.
Host Species; Species ReactivityMouse; Human, Mouse
Purification; FormulationProtein affinity purified; 1*TBS (pH7.4), 0.5%BSA, 50%Glycerol. Preservative: 0.05% Sodium Azide.; Liquid form.
ALTnamesPolycomb complex protein BMI-1, Polycomb group RING finger protein 4, RING finger protein 51
BackgroundIn Drosophila, Polycomb (Pc-g) gene family encodes chromatin proteins that are required for the repression of homeotic loci in embryonic development. Mel-18 and Bmi-1, mammalian homologs of Drosophila Pc-g group proteins, are similarly expressed during development and implicated in the regulation of gene expression, axial skeleton development, control of proliferation and survival of haematopoietic cells. Mel-18 directly binds to DNA through a RING-finger motif and preferentially associates with juxtaposed enhancer elements on various genes, including Bcl-2, c-Myc and Hox. Mel-18 is an immediate early response gene within the c-Myc/Cdc25 signaling cascade that exhibits tumor suppressor activity and negatively regulates cell cycle progression by blocking S phase entry. Alternatively, Bmi-1 has been identified as a potent oncogene as it contributes to the transcriptional activation of genes implicated in early lymphoid development. Proviral activation of Bmi-1 expression corresponds to enhanced gene-specific activation of other proto-oncogenes, including c-Myc and Pim, subsequently resulting in the progression of lymphomagenesis.(EM1701-55)