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R&D Systems™ Recombinant Human IL-4 (CHO-expressed) Protein
Extensive quality control produces industry leading bioactivity and lot-to-lot consistency that instills confidence in results and ensures reproducibility. Applications: Bioactivity
Supplier: R&D Systems™ 6507IL010
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Description
Measured in a cell proliferation assay using TF-1 human erythroleukemic cells. Kitamura, T. et al. (1989) J. Cell Physiol. 140:323. The ED50 for this effect is 0.05-0.2 ng/mL.Specifications
P05112 | |
Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein. | |
M.W. (Observed): 17-25 kDa, reducing conditions; M.W. (theoretical): 15.0 kDa | |
10 μg | |
Use a manual defrost freezer and avoid repeated freeze-thaw cycles. 12 months from date of receipt, -20°C to -70°C as supplied. 1 month, 2°C to 8°C under sterile conditions after reconstitution. 3 months, -20°C to -70°C under sterile conditions after reconstitution. | |
<0.01 EU / 1 μg of the protein by the LAL method. | |
IL4 | |
Recombinant | |
>95%, by SDS-PAGE under reducing conditions and visualized by silver stain. |
Bioactivity | |
3565 | |
IL-4 | |
Chinese Hamster Ovary cell line, CHO-derived human IL-4 protein His25-Ser153 | |
Monomer | |
B cell growth factor 1, BCDF, B-cell stimulatory factor 1, BCGF1, BCGF-1, binetrakin, BSF1, BSF-1, IL4, IL-4B_cell stimulatory factor 1, IL4E12, interleukin 4, interleukin-4, Lymphocyte stimulatory factor 1, MGC79402, Pitrakinra | |
Unconjugated | |
Reconstitute at 100 μg/mL in PBS containing (at least 0.1% human or bovine serum albumin.) | |
IL-4 |
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