Description: The M1/69 monoclonal antibody reacts with the mouse CD24 molecule, also known as Heat Stable Antigen (HSA). This 35-50 kDa molecule is anchored in the plasma membrane via phosphatidylinositol and is expressed by erythrocytes, thymocytes, peripheral lymphocytes and myeloid lineage. CD24 is a variably glycosylated molecule resulting in heterogeneity of molecular mass of this antigen on cells of different lineages and antibodies to CD24 exhibit subtle differences in staining level on lymphocyte populations. The expression of CD24 has been used to resolve stages of B lymphopoiesis in mouse bone marrow. It has been reported that P-selectin (CD62P) binds to CD24.
Applications Reported: This M1/69 antibody has been reported for use in flow cytometric analysis.
Applications Tested: This M1/69 antibody has been tested by flow cytometric analysis of mouse splenocytes. This may be used at less than or equal to 0.06 µg per test. A test is defined as the amount (µg) of antibody that will stain a cell sample in a final volume of 100 µL. Cell number should be determined empirically but can range from 10^5 to 10^8 cells/test. It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest.
PE-eFluor 610 can be excited with laser lines from 488-561 nm and emits at 607 nm. We recommend using a 610/20 band pass filter (equivalent to PE-Texas Red). Please make sure that your instrument is capable of detecting this fluorochrome.
Light sensitivity: This tandem dye is sensitive to photo-induced oxidation. Please protect this vial and stained samples from light.
Fixation: Samples can be stored in IC Fixation Buffer (Product # 00-8222-49) (100 µL of cell sample + 100 µL of IC Fixation Buffer) or 1-step Fix/Lyse Solution (Product # 00-5333-57) for up to 3 days in the dark at 4°C with minimal impact on brightness and FRET efficiency/compensation. Some generalizations regarding fluorophore performance after fixation can be made, but clone specific performance should be determined empirically.
Excitation: 488-561 nm; Emission: 607 nm; Laser: Blue Laser, Green Laser, Yellow-Green Laser
CD24 is a two-chain glycosylphosphatidylinositol (GPI)-anchored glycoprotein expressed at multiple stages of B-cell development, beginning with the bone marrow pro-B-cell compartment and continuing through mature, surface Ig positive B-cells. Plasma cell expression is very low or negative. CD24 is also expressed on the majority of B-lineage acute lymphoblastic leukemias, B-cell CCLs and B-cell non-Hodgkin's lymphomas. CD24 may play a role in regulation of B-cell proliferation and maturation, and control of autoimmunity.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: CD24; cluster of differentiation 24; FLJ22950; FLJ43543; heat stable antigen; HSA; Ly-52; Lymphocyte antigen 52; M1/69-J11D heat stable antigen; MGC75043; Nectadrin; R13-Ag; Signal transducer CD24; X62 heat stable antigen
Gene Aliases: Cd24; Cd24a; HSA; Ly-52; nectadrin
UniProt ID: (Mouse) P24807
Entrez Gene ID: (Mouse) 12484