Cat#:RP-1546HAT;Product Name:Recombinant Human IL4 Protein;Synonym:Interleukin 4 isoform1;Description:The human recombinant IL4, was produced in E.coli. This recombinant protein was purified using our unique purification methods.;Source:E.coli;AA Sequence:25-153 aa;Molecular Characterization:15kDa;Purity:Greater than 95% by SDS-PAGE;Endotoxin:< 1.0 EU per ug of protein as determined by LAL method.;Bioactivity:Measured in a cell proliferation assay using TF1 human erythroleukemic cells. The ED50 for this effect is less or equal to 0.6 ng/ml.;Formulation:Liquid Solution;Stability:Recombinant Human IL4 Protein was stable up to 1 year from date of receipt at -70℃;Concentration:1mg/mL;Storage Buffer:Recombinant Human IL4 protein was supplied in PBS (pH 7.4) containing 10% glycerol;Storage:Recombinant Human IL4 Protein can be stored at +4℃for 1-2 weeks. It is recommended that the recombinant protein be aliquoted for optimal storage at -20 or -70℃. Please avoid repeated freeze-thaw cycles.;Usage:For Lab Research Use Only;