Mouse anti Human CD22 antibody, clone Mc64-12 recognizes the human CD22 cell surface antigen, a 130/140kDa glycoprotein expressed by cells of B lymphocyte lineage. CD22 is initially expressed cytoplasmically and subsequently on the cell surface during B cell maturation. It is lost upon terminal differentiation to plasma cells. Flow Cytometry Use 10ul of the suggested working dilution to label 106 cells or 100ul whole blood http://www.creative-diagnostics.com/Anti-CD22-Mab-FITC-conjugated-234849-491.htm