CD21 is a single-pass type-2 transmembraneprotein that serves as the complement receptor for C3d and the Epstein-Barr virus. CD21 antibody labels follicular dendritic cells and mature B cells particularly in marginal and mantle zone of lymphoid tissues. It is a useful marker to identify neoplasms derived from follicular dendritic cells.
CD21 is a single-pass type-2 transmembraneprotein that serves as the complement receptor for C3d and the Epstein-Barr virus. CD21 antibody labels follicular dendritic cells and mature B cells particularly in marginal and mantle zone of lymphoid tissues. It is a useful marker to identify neoplasms derived from follicular dendritic cells.