Cat#:RP-0335H;Product Name:Recombinant Human CD40 / TNFRSF5 Protein (His Tag);Synonym:Bp50,CDW40,p50,TNFRSF5;Description:A DNA sequence encoding the human CD40 (NP_001241.1) extracellular domain (Met 1-Arg 193) was expressed, with a C-terminal polyhistidine tag.;Source:Human Cells;Predicted N Terminal:Glu 21;Molecular Characterization:The secreted recombinant human CD40 comprises 184 amino acids with a predicted molecular mass of 20.7 kDa. As a result of glycosylation, rhCD40 migrates as an approximately 32 kDa band in SDS-PAGE under reducing conditions.;Purity:Greater than 98 % as determined by SDS-PAGE;Endotoxin:< 1.0 EU per ug of the protein as determined by the LAL method;Bioactivity:Please contact us for detailed information;Formulation:Lyophilized from sterile PBS, pH 7.4;Stability:Recombinant Proteins are stable for up to 1 year from date of receipt at -70℃;Reconstitution:Please see related COA for specific instructions.;Storage:Avoid repeated freeze-thaw cycles. In lyophilized state for 1 year (4-8℃); Upon reconstitution under sterile conditions for 2 weeks (4-8℃) or 3 months (-20℃ to -70℃).;