Detects mouse IL-1 beta /IL-1 F2 in direct ELISAs and Western blots. In Western blots, shows 100% cross-reactivity with recombinant rat (rr) IL‑1 beta and rcrIL‑1 beta, 15%‑35 % with rhIL‑1 beta and rpIL‑1 beta, and no cross-reactivity with rmIL-1 alpha, rmIL-18, or rhIL-1 beta rp.
Monoclonal Hamster IgG Clone # B122
Protein A or G purified from hybridoma culture supernatant
E. coli-derived recombinant mouse IL-1 beta Accession # P10749
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
<0.10 EU per 1 μg of the antibody by the LAL method.
Hogquist, K.A. et al. (1991) J. Immunol. 146:1534.
Measured by its ability to neutralize IL‑1 beta /IL‑1F2-induced proliferation in the D10.G4.1 mouse helper T cell line. Symons, J. A. et al. (1987) in Lymphokines and Interferons, a Practical Approach. Clemens, M. J. et al. (eds): IRL Press. 272. The Neutralization Dose (ND50) is typically 0.3-1.5 µg/mL in the presence of 50 pg/mL Recombinant Mouse IL‑1 beta /IL‑1F2 and 1.25 µg/mL concanavalin A.
Please Note: Optimal dilutions should be determined by each laboratory for each application.
are available in the Technical Information section on our website.
Cell Proliferation Induced by IL‑1 beta /IL‑1F2 and Neutralization by Mouse IL‑1 beta /IL‑1F2 Antibody.
Recombinant Mouse IL‑1 beta /IL‑1F2 (Catalog # 401-ML) stimulates proliferation in the the D10.G4.1 mouse helper T cell line in a dose-dependent manner (orange line). Proliferation elicited by Recombinant Mouse IL‑1 beta /IL‑1F2 (50 pg/mL) is neutralized (green line) by increasing concentrations of Mouse IL‑1 beta /IL‑1F2 Monoclonal Antibody (Catalog # MAB4012). The ND50 is typically 0.3‑1.5 µg/mL in the presence of concanavalin A (1.25 µg/mL).
Preparation and Storage
Reconstitute at 0.5 mg/mL in sterile PBS.
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.
Background: IL-1 beta/IL-1F2
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 17% amino acid (aa) identity in mouse. 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 mouse IL-1 beta cDNA encodes a 269 aa precursor. A 117 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 mouse IL-1 beta shares 90% aa sequence identity with cotton rat and rat and 65%‑78% identity with canine, equine, feline, human, porcine, and rhesus IL-1 beta.
Allan, S.M. et al. (2005) Nat. Rev. Immunol. 5:629.
Boraschi, D. and A. Tagliabue (2006) Vitam. Horm. 74:229.
Kornman, K.S. (2006) Am. J. Clin. Nutr. 83:475S.
Isoda, K. and F. Ohsuzu (2006) J. Atheroscler. Thromb. 13:21.
Gray, P.W. et al. (1986) J. Immunol. 137:3644.
Martinon, F. and J. Tschopp (2007) Cell Death Differ. 14:10.
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