| Reactivity | CaSpecies Glossary |
| Applications | Bioactivity |
| Format | Carrier-Free |
| Details of Functionality | Measured in a cell proliferation assay using D10.G4.1 mouse helper T cells. Symons, J.A. et al. (1987) in Lymphokines and Interferons, a Practical Approach. Clemens, M.J. et al. (eds): IRL Press. 272. The ED50 for this effect is 4-16 pg/mL. |
| Source | E. coli-derived canine IL-1 beta/IL-1F2 protein Ala114-Ser265 |
| Accession # | |
| N-terminal Sequence | Ala114 |
| Protein/Peptide Type | Recombinant Proteins |
| Gene | IL1B |
| Purity | >97%, by SDS-PAGE under reducing conditions and visualized by silver stain |
| Endotoxin Note | <1.0 EU per 1 μg of the protein by the LAL method. |
| Dilutions |
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| Theoretical MW | 18 kDa. Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors. |
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| Publications |
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| Storage | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
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| Buffer | Lyophilized from a 0.2 μm filtered solution in PBS. |
| Purity | >97%, by SDS-PAGE under reducing conditions and visualized by silver stain |
| Reconstitution Instructions | Reconstitute at 100 μg/mL in sterile PBS. |
IL-1 is a name that designates two pleiotropic cytokines, IL-1 alpha (IL-1F1) and IL-1 beta (IL-1F2), which are the products of distinct genes. IL-1 alpha and IL-1 beta are structurally related polypeptides that share approximately 22% amino acid (aa) identity in dog. Both proteins are produced by a wide variety of cells in response to inflammatory agents, infections, or microbial endotoxins. While IL-1 alpha and IL-1 beta are regulated independently, they bind to the same receptor and exert identical biological effects. IL‑1 RI binds directly to IL-1 alpha or IL-1 beta and then associates with IL-1 R accessory protein (IL-1 R3/IL-1 R AcP) to form a high-affinity receptor complex that is competent for signal transduction. IL-1 RII has high affinity for IL-1 beta but functions as a decoy receptor and negative regulator of IL-1 beta activity. IL-1ra functions as a competitive antagonist by preventing IL-1 alpha and IL-1 beta from interacting with IL-1 RI (1 - 4). The canine IL-1 beta cDNA encodes a 266 aa precursor. A 114 aa propeptide is cleaved intracellularly by the cysteine protease IL-1 beta -converting enzyme (Caspase-1/ICE) to generate the active cytokine (5, 6). The 17 kDa mature canine IL-1 beta shares 68% - 78% aa sequence identity with cotton rat, equine, feline, human, mouse, porcine, rat, and rhesus IL-1 beta .
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The NLRP3 Inflammasome: Macrophage Activator & Pathology Driver By Victoria Osinski, PhDWhat is the NLRP3 Inflammasome?With its critical role in innate immunity, the nucleotide-binding oligomerization domain-like receptor family, pyrin domain containing 3 (NLRP3) inflammasome ... Read full blog post. |
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Immune Cell Metabolic Flux Influences Type I Diabetes By Hunter MartinezWhat is Immunometabolism?It is well established that abnormal metabolic environments can be a risk factor for disease development. One characteristic example is the role of dyslipidemia (high lev... Read full blog post. |
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Pyroptosis: Mechanisms mediating cell death and pro-inflammatory cytokine release By Victoria OsinskiPyroptosis is an inflammatory form of programmed cell death characterized by the release of pro-inflammatory cytokines IL-1 beta and IL-18.1,10 It is a process distinct from apoptosis and necrosis (T... Read full blog post. |
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IL-1 beta (interleukin 1 beta, lymphocyte activating factor (LAF)) IL-1 was originally identified and cloned as a lymphocyte mitogen and much later, was found to be comprised of two closely related but distinct proteins, interleukin 1 alpha (IL-1 alpha) and interleukin 1 beta (IL-1 beta). Both these proteins bind ... Read full blog post. |
The concentration calculator allows you to quickly calculate the volume, mass or concentration of your vial. Simply enter your mass, volume, or concentration values for your reagent and the calculator will determine the rest.
| Gene Symbol | IL1B |
| Uniprot |
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