| Code | CSB-AP004511HU |
| Abbreviation | Recombinant Human IL4 protein (Active) |
| MSDS | |
| Size | $204 |
| Order now | |
| Image | |
| Have Questions? | Leave a Message or Start an on-line Chat |
IL-4 drives Th2 polarization, B-cell class switching, and alternative macrophage activation, making signaling potency and endotoxin control essential for meaningful in vitro results. This recombinant human IL-4, spanning residues 25–153 of the mature sequence with a C-terminal 6xHis tag, demonstrates an ED50 of 0.05–0.5 ng/mL in TF-1 cell proliferation assays, confirming robust JAK1/JAK3–STAT6 pathway engagement at sub-nanogram concentrations. Endotoxin levels below 1.0 EU/μg effectively minimize LPS-driven artifacts, which supports use in primary T-cell and B-cell differentiation assays, Th2 skewing experiments, and in vivo models of allergic inflammation or tumor immunology. Mammalian-expressed with greater than 95% purity by SDS-PAGE, this protein provides a suitable basis for antibody validation workflows, ELISA standard curves, and mechanistic studies of IL-4Rα/γc receptor signaling.
There are currently no reviews for this product.