CD21 is a 145 kD transmembrane protein also known as complement C3d receptor (C3dR), complement receptor 2 (CR2), and Epstein-Barr virus receptor. CD21 is expressed on B cells, follicular dendritic cells, subsets of normal thymocytes and T cells, and some epithelial cells. CD21 is the receptor used by Epstein-Barr virus to infect B cells and is also the complement receptor for C3d. CD21 has also been shown to interact with a number of proteins, including CD23, CD19, annexin VI, CD81, iC3b, complement receptor 1 (CR1, CD35), and interferon-alpha 1 (IFN-α1).

推荐稀释比 FC:5μL per test for million cells or whole blood in 100 μL volume.

Flow Cytometry analysis of Human peripheral blood lymphocytes stained with PerCP/Cyanine5.5 CD21 antibody (filled gray histogram). Unstained lymphocytes (empty black histogram) are used as control.

-25 ~ -15℃保存，收到货之后有效期1年，避免反复冻融。