| Code | CSB-AP004811MO |
| Abbreviation | Recombinant Mouse Il4 protein, partial (Active) |
| MSDS | |
| Size | $184 |
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Interleukin-4 is a pleiotropic cytokine central to Th2 polarization, B-cell class switching to IgG1, and alternative macrophage activation, making precise functional recombinants essential for dissecting these pathways. This tag-free mouse IL-4 (aa 23–140) demonstrates exceptional signaling potency with an ED50 of 0.01 ng/mL in M-NFS-60 lymphoblast proliferation assays, confirming robust engagement of the IL-4Rα/JAK-STAT6 axis at sub-picogram concentrations. Endotoxin levels below 1.0 EU/μg effectively minimize LPS-driven artifacts, which supports use in sensitive immune cell functional assays including primary B-cell differentiation, Th2 skewing of naïve CD4+ T cells, and in vivo models of allergic inflammation or helminth infection. Purity exceeding 95% by SDS-PAGE, combined with this stringent endotoxin control, also provides a suitable basis for deployment as a reference standard in IL-4 detection ELISAs or as a positive control in antibody validation workflows.
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