Product Properties Alternative Names CD221, IGF1R, IGF-1R, IGF-I R, IGF-I receptor, IGFIR, IGFR, JTK13, MGC142170, MGC142172, MGC18216 Species Mouse Expression Sequence Glu31-His936 Accession Q60751 Tag C-His Expression System HEK293 Molecular Weight The protein has a predicted MW of 80.72 kDa (alpha subunit) and 23.0 kDa (beta subunit). Due to furin cleavage and glycosylation, the protein migrates to 110-140 kDa(alpha subunit) and 50-65 kDa(beta subunit) based on SDS-PAGE result. Purity > 95% as determined by SDS-PAGE. 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 【ELISA Data】 Immobilized Mouse IGF1R, His Tag at 1μg/ml (100μl/well) on the plate. Dose response curve for Human IGFI, hFc Tag with the EC50 of 2.3μg/ml determined by ELISA. Reconstitution Method Before opening, centrifuge briefly. Reconstitute the lyophilized protein with distilled water to a concentration exceeding 100 μg/mL. Aliquot after initial reconstitution to avoid repeated freeze-thaw cycles. Features High purity, high activity, low endotoxin, high batch-to-batch consistency Storage Store at -25 to -15°C. The shelf life is 1 year from the date of receipt. After reconstitution, store at -85 to -65°C under sterile conditions for up to 3 months.
