Description
The P51-311 monoclonal antibody binds to human BMI-1 (B lymphoma Mo-MLV insertion region 1 homolog). BMI1 is a c-myc cooperating oncogene that encodes an ~45 kDa protein that is a member of the Polycomb Group (PcG) of proteins. PcG proteins are essential for the maintenance, but not initiation, of the transcriptionally repressed state of certain developmental genes. PcG proteins are a structurally diverse group of proteins with conserved functions from fly to human cells. PcG proteins form complexes and regulate the expression of genes involved in cell cycle, DNA repair and differentiation that are crucial for maintaining the self renewal of normal and cancer stem cells. Specifically, BMI-1 is a core component of PRC1 (polycomb repressive complex 1). BMI-1, via the up-regulation of hTERT and independent of c-myc, can immortalize mammary epithelial cells. BMI-1 has also been shown to repress the INK4A locus that controls the tumor suppressors p16 and p19ARF (mouse homologue of p14ARF) in mouse models. BMI-1 plays a role in maintaining the self-renewal capacities of stem cells including hematopoietic, intestinal, retinal and neural stem cells. During antibody development, the purified P51-311 monoclonal antibody was found to detect BMI-1 by Western blot analysis of cellular lysates and by indirect immunofluorescent staining and flow cytometric analysis of fixed and permeabilized cells.
Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze. The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography. The antibody was conjugated to Alexa Fluor® 488 under optimum conditions, and unreacted Alexa Fluor® 488 was removed.
1. This reagent has been pre-diluted for use at the recommended Volume per Test. We typically use 1 × 10^6 cells in a 100-µl experimental sample (a test).
2. Source of all serum proteins is from USDA inspected abattoirs located in the United States.
3. An isotype control should be used at the same concentration as the antibody of interest.
4. Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
5. The Alexa Fluor®, Pacific Blue™, and Cascade Blue® dye antibody conjugates in this product are sold under license from Molecular Probes, Inc. for research use only, excluding use in combination with microarrays, or as analyte specific reagents. The Alexa Fluor® dyes (except for Alexa Fluor® 430), Pacific Blue™ dye, and Cascade Blue® dye are covered by pending and issued patents.
6. Alexa Fluor® 488 fluorochrome emission is collected at the same instrument settings as for fluorescein isothiocyanate (FITC).
7. Alexa Fluor® is a registered trademark of Molecular Probes, Inc., Eugene, OR.
8. Caution: Sodium azide yields highly toxic hydrazoic acid under acidic conditions. Dilute azide compounds in running water before discarding to avoid accumulation of potentially explosive deposits in plumbing.
9. For fluorochrome spectra and suitable instrument settings, please refer to our Multicolor Flow Cytometry web page at www.bdbiosciences.com/colors.
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11. Triton is a trademark of the Dow Chemical Company.
