| Code | CSB-AP001671HU |
| Abbreviation | Recombinant Human IL1B protein (Active) |
| MSDS | |
| Size | $354 |
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IL-1β is a master regulator of innate immunity and inflammation, driving NF-κB and MAPK signaling cascades that make precise functional reconstitution of this cytokine essential for mechanistic studies. This tag-free recombinant human IL-1β, encompassing the full mature sequence (residues 117–269), demonstrates exceptional potency with an ED50 below 1.0 pg/ml in murine D10S cell proliferation assays, corresponding to a specific activity exceeding 1.0 × 10⁹ IU/mg — providing a reliable reference standard for cytokine detection assays and a potent stimulus for cell-based activation, differentiation, and apoptosis experiments. Endotoxin levels below 1.0 EU/μg minimize LPS-driven artifacts that commonly confound immune cell assays, making this preparation appropriate for NF-κB/MAPK pathway dissection, PBMC or primary T-cell functional studies, and in vivo inflammation models. Purity exceeding 97% by SDS-PAGE further supports use as a coating antigen or positive control in ELISA and antibody validation workflows.
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