| Code | CSB-MP011659HUd7 |
| Abbreviation | Recombinant Human IL4 protein (Active) |
| MSDS | |
| Size | $138 |
| Order now | |
| Image |
|
| Have Questions? | Leave a Message or Start an on-line Chat |
Interleukin-4 drives Th2 polarization and B-cell class switching, making precise control over its concentration essential for dissecting immune regulation without confounding inflammatory signals. This mammalian-expressed protein, spanning the full mature sequence (aa 25–153), demonstrates dose-dependent proliferative activity in TF-1 cells with an ED50 of 1.864–4.949 ng/mL, providing a quantitative benchmark for titrating responses in cell-based functional assays including primary T-cell differentiation, PBMC activation, and B-cell proliferation studies. The endotoxin level below 1.0 EU/μg ensures that observed effects in JAK/STAT and NF-κB signaling pathway experiments reflect IL-4 receptor engagement rather than LPS-driven artifacts, a critical distinction when interpreting cytokine-mediated gene expression changes. Purity exceeding 90% supports its use as a coating antigen in ELISA development, a positive control in Western blot validation of anti-IL-4 antibodies, and a reference standard in multiplex cytokine detection platforms.
There are currently no reviews for this product.