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ILEX LIFE SCIENCES LLC Recombinant IL4 Rat Expressed in E coli 20 ug 20 UG 1/EA
Supplier: ILEX LIFE SCIENCES LLC A33850020
Ilex Life Sciences Interleukin-4 (IL-4) Rat E coli Recombinant Protein 20 g DESCRIPTION Our bioactive Interleukin-4 (IL-4) Rat E coli Recombinant Protein is a single non-glycosylated polypeptide chain that contains 125 amino acids and has a molecular mass of 14 kDa The IL-4 is purified by proprietary chromatographic techniques SOURCE Expressed in E coli FORMULATION Sterile filtered white lyophilized (freeze-dried) powder IL-4 protein was lyophilized from a 0 2 m filtered concentrated solution in PBS pH 7 4 and 5% trehalose PURITY 95 0% (RP-HPLC and SDS-PAGE) BIOACTIVITY The ED50 as determined in a cell proliferation assay using rat splenocytes is less than 2 ng/ml corresponding to a specific activity of 500 000 IU/mg OTHER NAMES Interleukin 4 IL4 B-cell stimulatory factor 1 (BSF-1) Lymphocyte stimulatory factor 1 UniProtKB P20096 USAGE This product is intended for Laboratory Research Use Only Not for use in diagnostic or therapeutic procedures
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