Name Cat No. Specification Recombinant Mouse IL-5 R alpha/CD125 Protein,His Tag 94544ES25 25 μg 94544ES60 100 μg 94544ES76 500 μg Product Properties Synonyms CD125; CDw125CD125; IL-5 R alpha; IL5R; Source Mouse IL-5 R alpha/CD125 Protein is expressed from HEK293 with His tag at the C-Terminus. It contains Asp18-His339.[Accession | P21183] Molecular Weight The protein has a predicted MW of 37.7 kDa. Due to glycosylation, the protein migrates to 50-60 kDa based on SDS-PAGE result. Endotoxin < 1EU per μg by the LAL method. Activity SPR Data: Mouse IL-5 R alpha, His Tag immobilized on CM5 Chip can bind Mouse IL-5, His Tag with an affinity constant of 0.495 μM as determined in SPR assay. Purity > 95% as determined by SDS-PAGE and HPLC Formulation Supplied as 0.22μm filtered solution in 20mM Tris, 500mM NaCl (pH 7.4). Storage The product should be stored at -85~-65℃ for 1 year from date of receipt. 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.