| Code | CSB-AP001691HU |
| Abbreviation | Recombinant Human IL2 protein (Active) |
| MSDS | |
| Size | $142 |
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IL-2 is a central driver of T cell proliferation and homeostasis, making signaling potency and endotoxin control essential for any recombinant form used in immune cell assays. This tag-free human IL-2, encompassing the full mature sequence (Ala21–Thr153), demonstrates an ED50 below 0.1 ng/mL in CTLL-2 proliferation assays—corresponding to a specific activity exceeding 1.0 × 10⁷ IU/mg—which provides a suitable basis for T cell expansion protocols, PBMC activation studies, and JAK/STAT signaling pathway dissection. 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 tumor biology or inflammation models. Purity above 97% by SDS-PAGE, combined with this stringent endotoxin profile, also supports use as a quantitative reference standard in ELISA-based cytokine detection and as a reliable positive control for antibody validation by Western blot.
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