Recombinant Human IL-21R Protein,hFc Tag

Description :
Synonyms CD360; IL-21R;IL-21 receptor; Source Human IL-21R Protein is expressed from HEK293 with hFc tag at the C-Terminus. It contains Cys20-Pro236.[Accession | NP_068570.1] Molecular Weight The protein has a predicted MW of 51.8 kDa. Due to glycosylation, the protein migrates to 60-70 kDa based on SDS-PAGE result. 内毒素Endotoxin Less than 1EU per g by the LAL method. Purity > 95% as determined by SDS-PAGE and HPLC. Activity ELISA Data: Immobilized Human IL-21, No Tag at 1g/ml (100l/well) on the plate. Dose response curve for Human IL-21R, hFc Tag with the EC50 of 42.3ng/ml determined by ELISA. Formulation Lyophilized from 0.22m filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization. Reconstitution Centrifuge the tube before opening. Reconstituting to a concentration more than 100 g/ml is recommended. Dissolve the lyophilized protein in distilled water.