Mouse Anti-Porcine CD21-FITC

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 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 of PBS/NaN3 and a stabilizing agent. Store at 2-8 °C. Do not freeze! <br>Protect conjugated forms from light. Reagents are stable for the period shown on the label if stored as directed.

Porcine CD21, Mr 160 kDa<br>CD21, also known as complement receptor 2, is expressed on all mature circulating B lymphocytes but not on T lymphocytes or natural killer cells.1 Low density CD21 has also been reported on granulocytes and monocytes. MAb BB6-11C9.6 stains the following percentages of surface immunoglobulin (sIg) positive cells in porcine lymphoid tissues: 92-96% in peripheral blood; 74-98% in mesenteric lymph nodes; 97-100% in ileal Peyer's patches (ILPP); 93-97% in spleen; and 0% in thymus.2 The antibody does not stain B cells in cord blood or spleen from pig fetuses (105 days gestation).2