| Code | CSB-AP001821HU |
| Abbreviation | Recombinant Human IL13 protein (R144Q), partial (Active) |
| MSDS | |
| Size | $354 |
| Order now | |
| Image | |
| Have Questions? | Leave a Message or Start an on-line Chat |
The R144Q variant of human IL-13 is a clinically relevant gain-of-function polymorphism associated with enhanced IgE production and asthma susceptibility, making it a critical tool for studying Th2-driven inflammatory signaling. This tag-free recombinant protein (residues 35–146) demonstrates exceptional potency with an ED50 below 0.5 ng/ml in TF-1 cell proliferation assays, corresponding to a specific activity exceeding 2.0 × 10⁶ IU/mg—providing reliable dose-response performance in JAK/STAT6 pathway activation studies, B-cell differentiation assays, and macrophage polarization experiments. Endotoxin levels below 1.0 EU/μg ensure that downstream immune cell responses reflect genuine IL-13 signaling rather than LPS-driven artifacts, which supports use in primary cell functional assays and in vivo models of allergic inflammation. Purity exceeding 97% by SDS-PAGE further qualifies this protein as a reference standard in IL-13 detection assays or as a coating antigen for antibody development campaigns targeting the R144Q variant.
There are currently no reviews for this product.