| Code | CSB-MP011629HUd7 |
| Abbreviation | Recombinant Human IL2 protein (Active) |
| MSDS | |
| Size | $138 |
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IL-2 drives clonal expansion and effector differentiation of activated T cells through JAK/STAT5 signaling, making precise control of its bioactivity essential for dissecting immune responses in vitro and in vivo. This mammalian-expressed protein, spanning the full mature sequence (aa 21–153), demonstrates potent proliferative activity with an ED50 of 1.725–2.239 ng/mL in CTLL-2 cells, directly supporting dose-response studies in T-cell proliferation assays, STAT5 phosphorylation kinetics, and primary PBMC activation experiments. Endotoxin levels below 1.0 EU/μg eliminate LPS-driven artifacts that confound cytokine-specific readouts in immune cell cultures, satisfying the purity and endotoxin criteria typical for mechanistic signaling studies and tumor immunology models. The >95% purity and C-terminal His tag enable reproducible quantification in ELISA development, antibody validation workflows, and as a reference standard in multiplex cytokine panels.
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