Biotinylated Human IL-2R alpha/CD25 Protein, His-Avi Tag

Yeasen - Leading Innovation in Molecular Enzymes and Reagents Verified independent store

→

Specifications Source Biotinylated Human IL-2 R alpha/CD25 Protein is expressed from HEK293 with His tag and Avi tag at the C-terminal. It contains Glu22-Cys213.[Accession | P01589 ] Molecular Weight The protein has a predicted MW of 24.6 kDa. Due to glycosylation, the protein migrates to 40-50 kDa based on Tris-Bis PAGE result. Endotoxin Less than 1EU per μg by the LAL method. Purity > 95% as determined by Tris-Bis PAGE> 95% as determined by HPLC Activity ELISA Data: Immobilized Anti-CD25 Antibody, hFc Tag at 0.2μg/ml (100μl/well) on the plate. Dose response curve for Biotinylated Human IL-2 R alpha, His Tag with the EC50 of 11.9ng/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. Show more