Rat Anti-Mouse CD45R/B220-PE

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) conjugate is 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 allophycocyanin (APC) 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 Spectral Red (SPRD), R-phycoerythrin -Texas Red (R-PE-TXRD), R-phycoerythrin-Cyanine 7 (R-PE-CY 7), R-phycoerythrin-Cyanine 5.5 (R-PE-CY 5.5), Allophycocyanin-Cyanine 5.5 (APC-CY 5.5) and Allophycocyanin- Cyanine 7 (APC-CY 7) conjugates are 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>The Cyanine 5 (CY 5) conjugate is supplied as 0.1 mg in 1.0 mL of PBS/NaN3. Store at 2-8 °C. <br>The Alexa Fluor 488 (AF488) conjugate is supplied as 0.1mg in 0.2mL of PBS/NaN3. Store at 2-8 °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.

B220 isoform of CD45, Mr 240 kDa<br>CD45R/B220, a member of the protein tyrosine phosphate family and a major cell surface glycoprotein, represents a restricted form of the CD45 family which primarily recognizes only cells of B-lineage from pro-B cell through mature B lymphocytes and, prior to the availability of anti-CD19 MAbs, was commonly used as a pan B-cell marker.^1-5 It also reacts with certain activated T cells, as well as non-MHC-restricted lytically active lymphokine-activated killer (LAK) cells.^1, 6 In vivo administration of RA3-6B2 has been shown to affect differentiation of both T and B cells in normal mice and reduce the level of anti-DNA antibodies and lymphadenopathies in MRL/lpr mice.^7, 8