Specificity was checked by ELISA and flow cytometry using BHK cells transfected with mouse CD40. It does not react with normal mouse Ig or with human IgG1 and will stain most mature mouse B cells. It does not cross react with mouse T cells. Clone 3/23 is a powerful activator of normal B cells especially in the presence of IL-4.
纯化方法
Affinity Chromatography on Protein G.
内毒素水平
Low Endotoxin
免疫原
Extracellular domain of Mouse CD40 and the Fc portion of Human IgG1. Spleen cells from immunised LOU/c rats were fused with cells of the Ag8 mouse myeloma cell line.
Flow Cytometry: use 10 μL of 1/50 diluted antibody to label 10^6 cells in 100 μL. Immunohistochemistry on Frozen Sections. ELISA. Functional Assays. Other applications not tested. Optimal dilutions are dependent on conditions and should be determined by the user.
限制
仅限研究用
浓度
1.0 mg/mL
缓冲液
PBS, pH 7.4 without preservatives.
储存液
Without preservative
注意事项
Avoid repeated freezing and thawing.
储存条件
4 °C/-20 °C
储存方法
Store the antibody at 2 - 8 °C up to one month or (in aliquots) at -20 °C for longer.
CD40 is a costimulatory molecule of the TNF receptor superfamily and is expressed on many cell types, such as B cells, monocytes/macrophages, dendritic cells, endothelial cells, fibroblasts or vascular smooth muscle cells. Interaction of CD40 and its ligand CD154 (CD40L) is required for the generation of antibody responses to T-dependent antigens as well as for the development of germinal centers and memory B cells. In monocytes/macrophages CD40 engagement induces production of pro-inflammatory cytokines and chemokines. CD40-CD154 interactions are also critical for development of CD4 T cell-dependent effector functions. CD40 links innate and adaptive immune responses to bacterial stimuli and serves as an important regulator affecting functions of other costimulatory molecules.Synonyms: B-cell surface antigen CD40, Bp50, CD40L receptor, CDw40, TNFRSF5, Tumor necrosis factor receptor superfamily member 5