CD40 is a 48 kD type I transmembrane glycoprotein also known as Bp50. It is a member of the tumor necrosis factor receptor (TNFR) superfamily and is expressed on B cells, basal epithelial cells, macrophages, follicular dendritic cells, endothelial cells, and a subset of CD34+ hematopoietic progenitors. CD40 regulates B cell development/maturation, Ig isotype switching and, in combination with other signals such as IL-4, protects B cells from surface Ig-induced apoptosis and promotes proliferation. Interaction of CD40 with its ligand CD154 (gp39), which is expressed on activated T cells, is important in costimulation and immune regulation.

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

Flow Cytometry analysis of C57BL/6 murine splenocytes stained with CD40 antibody (PE).Unstained splenocytes (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。