Specifications Synonyms IL23 alpha; IL12 β; IL23 alpha&IL12 beta ; Source Mouse IL-23 alpha&IL-12 beta Protein is expressed from HEK293 with His tag at the N-Terminus. It contains Val22-Ala196(IL-23 alpha)&Met23-Ser335(IL-12 beta).[Accession | Q9EQ14-1(IL-23 alpha)&P43432-1(IL-12 beta)] Source The protein has a predicted MW of 20.8 (Mouse IL-23 alpha)&35.8 (Mouse IL-12 beta) kDa. Due to glycosylation, the protein migrates to 22 (Mouse IL-23 alpha)&45-50 (Mouse IL-12 beta) kDa based on Tris-Bis PAGE result. Endotoxin Less than 1EU per μg by the LAL method. Purity > 95% as determined by SDS-PAGE and HPLC. Activity SPR Data: Mouse IL-23R, His Tag immobilized on CM5 Chip can bind Mouse IL-23 alpha&IL-12 beta, His Tag with an affinity constant of 6.31 nM as determined in SPR assay . Formulation Lyophilized from 0.22μm filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization. Reconstitution Centrifuge the tube 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 the date of receipt. 2-7 days, 2 ~ 8 °C under sterile conditions after reconstitution. 3 -6 months, -85~-65℃ 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.