Application Note: Interleukin-1-alpha Recombinant Protein has been tested by SDS-PAGE and biological activity and is suitable as a control for polyclonal or monoclonal anti-Interleukin-1-alpha in immunological assays.
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Other Performance Data: Endotoxin Level: Measured by kinetic LAL analysis and is typically ≤ 1 EU/μg protein. Biologic Activity: The activity is determined by the stimulation of D10S.G4.1 cells and is typically 1-6 pg/mL.
Physical State: Lyophilized
Purity and Specificity: Interleukin-1-alpha purity was determined to be greater than 97% as determined by HpLC, analysis by UV-Spectroscopy at 280nm, and by reducing and non-reducing SDS-pAGE.
Background: Interleukin-1 alpha (IL-1α) is constitutively expressed by epithelial cells, but can also be produced by most other cells upon stimulation. IL-1β and IL-1α are two distinct and independently regulated gene products that comprise IL-1 and signal through the Type 1 IL-1 receptor (IL-1R1). Although IL-1α is cell associated and IL-1β is secreted, they have nearly identical biological activity in that they induce adhesion molecule expression on epithelial cells, control fever induction, and play a role in arthritis and septic shock. Signaling activated by the IL-1R1 promotes these activities through a MYD88 signaling pathway similar to those associated with Toll receptors. Recombinant human IL-1α is a non-glycosylated single chain protein, containing 159 amino acids, with a molecular weight of 18 kDa.
Low Endotoxin: Yes
Other: User Optimized