Product Properties Alternative Names IL4, IL-4, interleukin 4, MGC79402, pitrakinra, B cell growth factor 1, BCDF, BCGF1, BCGF-1, binetrakin, BSF1, BSF-1, BSF-1 Species Cynomolgus Expression Sequence His25-Ser153 Accession P79339-1 Tag C-His Expression System HEK293 Molecular Weight The protein has a predicted MW of 16.03 kDa. Due to glycosylation, the protein migrates to 23-28 kDa based on SDS-PAGE result. Purity > 95% as determined by SDS-PAGE and HPLC. Endotoxin < 1.0 EU per μg by the LAL method. Formulation Lyophilized from 0.22μm filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization. Appearance Lyophilized Powder Biological Activity SPR Data:Cynomolgus IL-4, His Tag immobilized on CM5 Chip can bind Cynomolgus IL-4 R alpha, His Tag with an affinity constant of 13.48 nM as determined in SPR assay . Reconstitution Method Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/ml is recommended. Dissolve the lyophilized protein in distilled water. Features High purity, high activity, low endotoxin, high batch-to-batch consistency Storage Store at -25 to -15°C. Once received, the product is valid for one year. After resuspension, store at -85 to -65°C. The product is valid for three months.
