| Code | CSB-AP004501HU |
| Abbreviation | Recombinant Human IL2 protein (Active) |
| MSDS | |
| Size | $96 |
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IL-2 drives clonal expansion and differentiation of T cells through JAK1/JAK3–STAT5 signaling, making it indispensable for ex vivo immune cell culture and functional immunology. This recombinant human IL-2 spans the full mature sequence (aa 21–153) with a C-terminal 6xHis tag, produced in mammalian cells to ensure proper folding and glycosylation, and demonstrates specific activity ≥1×10⁷ IU/mg in a CTLL-2 proliferation assay—confirming potent bioactivity suitable for T-cell expansion protocols, PBMC activation studies, and JAK/STAT pathway dissection. Endotoxin levels below 1.0 EU/μg eliminate LPS-driven artifacts that confound cytokine-dependent readouts in sensitive immune cell assays, while purity exceeding 95% by SDS-PAGE supports use as a quantitative reference standard in ELISA-based cytokine detection or as a functional control in antibody validation workflows. This preparation aligns with standards expected in both in vitro proliferation assays and in vivo tumor immunology models requiring reliable, high-potency IL-2.
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