• Species Reactivity

  Human

• Specificity

  Detects human IL‑1 beta /IL‑1F2 by direct ELISAs.    
   

• Source

  Recombinant Monoclonal Rabbit IgG Clone # 1027B

• Purification

  Protein A or G purified from cell culture supernatant

• Immunogen

  E. coli-derived recombinant human IL‑1 beta /IL‑1F2    
  Ala117-Ser269    
  Accession # P01584

• Formulation

  Supplied in a saline solution containing BSA and Sodium Azide.

• Label

  Allophycocyanin

Applications

• Recommended    
  Concentration

  Sample

• Intracellular Staining by Flow Cytometry

  10 µL/10    ⁶ cells

  See below

• 
  

Please Note: Optimal dilutions should be determined by each laboratory for each application.  are available in the Technical Information section on our website.

Data Examples

Preparation and Storage

• Shipping

  The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

• Stability & Storage

  Protect from light.    Do not freeze.    

• 12 months from date of receipt, 2 to 8 °C as supplied.

Background: IL-1 beta/IL-1F2

IL-1 is a common name for 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 21% amino acid (aa) sequence identity in human. 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 may 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 human IL-1 beta cDNA encodes a 269 aa precursor that contains a 116 aa propeptide which is cleaved intracellularly by the cysteine protease IL-1 beta -converting Enzyme (Caspase-1/ICE) to generate an active cytokine (5-7). The 17 kDa mature human IL-1 beta shares 96% aa sequence identity with rhesus macaque, and 67-78% aa sequence identity with canine, cotton rat, equine, feline, mouse, porcine, and rat IL-1 beta.

• References:

1. Allan, S.M. et al. (2005) Nat. Rev. Immunol. 5:629.

2. Boraschi, D. and A. Tagliabue (2006) Vitam. Horm. 74:229.

3. Kornman, K.S. (2006) Am. J. Clin. Nutr. 83:475S.

4. Isoda, K. and F. Ohsuzu (2006) J. Atheroscler. Thromb. 13:21.

5. March, C.J. et al. (1985) Nature 315:641.

6. Auron, P.E. et al. (1984) Proc. Natl. Acad. Sci. USA 81:7907.

7. Martinon, F. and J. Tschopp (2007) Cell Death Differ. 14:10.

• Long Name:

  Interleukin 1 beta

• Entrez Gene IDs:

  3553 (Human); 16176 (Mouse); 24494 (Rat); 397122 (Porcine); 403974 (Canine); 100034237 (Equine); 100135556 (Guinea Pig)

• Alternate Names:

  catabolin; IL1 beta; IL-1 beta; IL-1; IL1B; IL-1b; IL1-BETA; IL-1F2; IL1F2IL-1 beta; interleukin 1, beta; interleukin-1 beta; preinterleukin 1 beta; pro-interleukin-1-beta