特異性：Porcine CD21, Mr 160 kDa 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
