Highly pure resting B cells are isolated by magnetic labeling and depletion of CD43-expressing B cells (activated B cells, plasma cells and CD5
+
B-1a cells) and non-B cells. CD43
+
B cells, T cells, NK cells, dendritic cells, macrophages, granulocytes, and erythroid cells are labeled with a cocktail of biotin-conjugated antibodies against CD43 (Ly-48), CD4 (L3T4), and Ter-119, as well as Anti-Biotin MicroBeads. The B Cell Isolation Kit includes the Biotin-Antibody Cocktail for labeling of non-target cells and Anti-Biotin MicroBeads.