Rat Anti-Mouse CD24/HSA-BIOT

The purified (UNLB) antibody is supplied as 0.5 mg of purified immunoglobulin in 1.0 mL of 100 mM borate buffered saline, pH 8.2. No preservatives or amine-containing buffer salts added. Store at 2-8 °C. <br>The fluorescein (FITC) conjugate is supplied as 0.5 mg or 0.1 mg in 1.0 mL of PBS/NaN3. Store at 2- 8 °C. <br>The biotin (BIOT) conjugate is supplied as 0.5 mg in 1.0 mL of PBS/NaN3. Store at 2-8 °C. <br>The R-phycoerythrin (R-PE) and allophycocyanin (APC) conjugates are supplied as 0.1 mg in 1.0 mL or 0.2 mg in 2.0 mL of PBS/NaN3 and a stabilizing agent. Store at 2-8 °C. Do not freeze! <br>The Spectral Red (SPRD) conjugate is supplied as 0.1 mg in 1.0 mL of PBS/NaN3 and a stabilizing agent. Store at 2-8 °C. Do not freeze! <br>The low endotoxin, azide-free (LE/AF) antibody is supplied as 0.5 mg purified immunoglobulin in 1.0 mL of PBS. Aliquot and store at or below -20 °C. <br>Protect conjugated forms from light. Aliquot and freeze the low endotoxin, azide-free product at -20 °C immediately upon receipt. Each reagent is stable for the period shown on the bottle label if stored as directed.

Mouse CD24/heat stable antigen (HSA)<br>CD24 is expressed in B cells until their terminal differentiation into plasma cells.1 It has been used widely as a marker to fractionate different B-lineage differentiation stages.10 CD24 has been found on a variety of other hematopoietic and neural cell types, and is now classified as a costimulatory molecule.2-4 The CD24/HSA molecule is composed mostly of carbohydrate, with a protein core of only 31-35 amino acids in the human and 27 amino acids in the mouse.1, 3 The molecular mass is variable, ranging from 38-70 kDa.3 CD24 is now included in the large group of phosphatidylinositol-anchored membrane proteins.1-4 Studies with purified CD24 applied to latex beads have demonstrated a self-binding property, suggesting that the molecule is capable of promoting homotypic aggregation, binding and cell adhesion.3 This is supported by earlier observations of the blockade of B cell lymphoblast aggregation with anti- CD24 monoclonal antibody.6 Recent studies of murine CD24 have assigned a role for CD24/HSA as a ligand for P-selectin, a calcium-dependent lectin.7