| Code | CSB-AP003371MO |
| Abbreviation | Recombinant Mouse Il13 protein, partial (Active) |
| MSDS | |
| Size | $354 |
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IL-13 is a pleiotropic Th2 cytokine central to allergic inflammation, fibrosis, and alternative macrophage activation, making precise functional reagents essential for dissecting its downstream signaling. This tag-free recombinant mouse IL-13 (M+22–131aa) demonstrates strong signaling potency, with an ED50 below 4 ng/ml in TF-1 cell proliferation assays corresponding to a specific activity exceeding 2.5 × 10⁵ IU/mg, which supports use in cell-based functional assays such as proliferation, macrophage polarization, and JAK/STAT6 pathway activation studies. Endotoxin levels below 1.0 EU/μg minimize LPS-driven artifacts that can confound cytokine-dependent readouts in primary immune cell cultures and in vivo murine models of airway inflammation or fibrosis. The protein's purity exceeding 97% by SDS-PAGE, combined with its mature-sequence fidelity and tag-free format, provides a suitable basis for use as a reference standard in cytokine detection assays or as a coating antigen for antibody development and ELISA validation.
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