| Code | CSB-MP011629HU-WD |
| Abbreviation | Recombinant Human IL-2 protein (Active) |
| MSDS | |
| Size | $64 |
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Interleukin-2 drives T-cell expansion and regulatory T-cell homeostasis, making quantitative control of its bioactivity essential for dissecting immune responses without confounding variables. This tag-free preparation, spanning the complete mature sequence (aa 21–153), demonstrates potent mitogenic activity with a specific activity ≥1 × 10⁷ IU/mg in CTLL-2 proliferation assays, providing a validated basis for dose-response studies in primary T-cell expansion, NK cell activation, and Treg differentiation experiments. Endotoxin levels ≤1 EU/mg satisfy the stringent thresholds required for immune cell functional assays, where even trace LPS can trigger TLR4-mediated artifacts that obscure cytokine-specific signaling through the JAK1/JAK3/STAT5 pathway. Purity exceeding 95% by SDS-PAGE, combined with the demonstrated proliferative potency, supports its use as a positive control in cytokine detection platforms and as a defined reagent in mechanistic studies of IL-2 receptor signaling dynamics.
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