Product Properties Alternative Names CD40, CD40L receptor, TNFRSF5, CD40 antigen, CD40 molecule, CDw40, MGC9013, Species Canine Expression Sequence Glu21-Ala194 Accession Q7YRL5 Tag C-His Expression System HEK293 Molecular Weight The protein has a predicted MW of 20.14 kDa. Due to glycosylation, the protein migrates to 30-40 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 【ELISA Data】 Immobilized Canine CD40, His Tag at 5μg/ml (100μl/well) on the plate. Dose response curve for Human CD40 Ligand (Trimer) , hFc Tag with the EC50 of 6.5ng/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.
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