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IL-18,Interleukin-18,IL18,IL-1 gamma,IGIF,IL1F4,IL-1F4
Human IL-18, Tag Free (IL8-H5113) is expressed from E. coli cells. It contains AA Tyr 37 - Asp 193 (Accession # Q14116-1).
Predicted N-terminus: Met
Request for sequence
This protein carries no "tag"
The protein has a calculated MW of 18.3 kDa. The protein migrates as 18 kDa under reducing (R) condition (SDS-PAGE).
Less than 0.1 EU per μg by the LAL method.
The sterility testing was performed by membrane filtration method.
>95% as determined by SDS-PAGE.
>90% as determined by SEC-MALS.
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.
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Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
Interleukin-18 (IL-18) is a potent proinflammatory cytokine that induces interferon-gamma (IFN-gamma) production from Th1 cells, NK cells and activated macrophages, particularly in the presence of IL-12. IL-18 also functions in developmental regulation of T-lymphocyte helper type I cells and in Fas-mediated cytotoxicity. Suppression of IL-18 activity is being investigated for treatment of chronic inflammatory diseases such as Crohn's disease and rheumatoid arthritis. It acts by inducing heterodimerization of the two subunits of its receptor, IL-18RAlpha and IL-18RBeta shows structural similarity to IL-1.