Specifications Source Human CD3E/CD3 epsilon monomer Protein is expressed from HEK293 with hFc tag at the C-terminal. It contains Asp23-Asp126(C119S, C122S).[Accession | P07766] Molecular Weight The protein has a predicted MW of 36.1 kDa. Due to glycosylation, the protein migrates to 35-55 kDa based on SDS- PAGE result. Endotoxin 95% as determined by SDS- PAGE Activity ELISA Data: Immobilized Human CD3E, hFc Tag at 1μg/ml (100μl/Well) on the plate. Dose response curve for Biotinylated Anti-CD3 Antibody, hFc Tag with the EC50 of 33.5ng/ml determined by ELISA. Formulation Lyophilized from 0.22μm filtered solution in PBS (pH 7.4). Normally 5% trehalose is added as protectant before lyophilization. Reconstitution Centrifuge tubes before opening. Reconstituting to a concentration more than 100 μg/ml is recommended. Dissolve the lyophilized protein in distilled water. Storage The product should be stored at -25~-15℃ for 1 year from date of receipt. 2-7 days, 2 ~8 °C under sterile conditions after reconstitution. 3 months, -25~-15℃ under sterile conditions after reconstitution. Recommend to aliquot the protein into smaller quantities when first used and avoid repeated freeze-thaw cycles. Note 1.Please operate with lab coats and disposable gloves for your safety. 2.This product is for research use only.