Species of Origin
His Tag (C-term)
Lyophilized from a 0.2 µm filtered solution of PBS, pH 8.0.
>98% as determined by SDS-PAGE analysis.
The protein has a calculated MW of 18.5 kDa.
The protein migrates as 17 kDa under reducing condition (SDS-PAGE analysis).
Measure by its ability to induce IL-8 secretion in HT29 cells. The ED₅₀ for this effect is <2.0 ng/mL. The specific activity of recombinant human IL-1 beta is approximately >3 x 10⁷ IU/mg.
<0.1 EU per 1 μg of the protein by the LAL method.
Interleukin-1 beta (IL-1β) is a major cytokine expressed in macrophage, NK cells, monocytes, and neutrophils. It also plays fundamental role in inflammatory response, including monocyte activation, which is essential for the host defense and pathogen resistance. Pro-IL-1β is cleaved by cytosolic caspase 1 to form mature IL-1β.
Interleukin-1 beta, Catabolin
It is recommended to reconstitute the lyophilized protein in sterile H₂O to a concentration not less than 200 μg/mL and incubate the stock solution for at least 20 min to ensure sufficient re-dissolved.
The product is shipped with polar packs. Upon receipt, store it immediately at -20°C or lower for long term storage.
Stability & Storage
This product is stable after storage at:
- -20°C for 12 months in lyophilized state from date of receipt.
- -20°C or -80°C for 1 month under sterile conditions after reconstitution.
Avoid repeated freeze/thaw cycles.
SDS-PAGE analysis of recombinant human IL-1 Beta.1/1
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Datasheet & Documents1/1
Disclaimer：For Research Use Only. Not for use in diagnostic or therapeutic procedures.