Feline IL-1 beta /IL-1F2 Biotinylated Antibody

  
  • Species Reactivity
    Feline
  • Specificity
    Detects feline IL‑1 beta /IL‑1F2 in ELISAs and Western blots. In Western blots, approximately 10% cross-reactivity with recombinant human IL-1 beta and recombinant mouse IL-1 beta is observed.
  • Source
    Polyclonal Goat IgG
  • Purification
    Antigen Affinity-purified
  • Immunogen
    E. coli-derived recombinant feline IL‑1 beta
    Ala116-Ser267
    Accession # P41687
  • Formulation
    Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
  • Label
    Biotin
Applications
  •  
    Recommended
    Concentration
    Sample
  • Western Blot
    0.1 µg/mL
    Recombinant Feline IL‑1 beta /IL‑1F2 (Catalog # 1796-FL)
  • Immunocytochemistry
    5-15 µg/mL
    See below
    • Feline IL-1 beta /IL-1F2 Sandwich Immunoassay
      Reagent
  • ELISA Capture (Matched Antibody Pair)
    0.2-0.8 µg/mL 
    Feline IL‑1 beta /IL‑1F2 Antibody (Catalog # AF1796)
  • ELISA Detection (Matched Antibody Pair)
    0.1-0.4 µg/mL 
    Feline IL‑1 beta /IL‑1F2 Biotinylated Antibody (Catalog # BAF1796)
  • ELISA Standard
     
    Recombinant Feline IL-1 beta/IL-1F2 Protein (Catalog # 1796-FL)
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Data Examples

IL‑1 beta /IL‑1F2 in Feline PBMCs.
IL‑1 beta /IL‑1F2 was detected in immersion fixed feline peripheral blood mononuclear cells (PBMCs) using Goat Anti-Feline
IL‑1 beta /IL‑1F2 Biotinylated Antigen Affinity-purified Polyclonal Antibody (Catalog # BAF1796) at 15 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Streptavidin (red; Catalog # NL999) and counterstained with DAPI (blue). Specific staining was localized to cytoplasm. View our protocol for Fluorescent ICC Staining of Non-adherent Cells.

Preparation and Storage
  • Reconstitution
    Reconstitute at 0.2 mg/mL in sterile PBS.
  • Shipping
    The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
  • 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 27% amino acid (aa) identity in feline. 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 the 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 feline IL-1 beta cDNA encodes a 267 aa precursor. A 115 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 feline IL-1 beta shares 63%‑78% aa sequence identity with canine, cotton rat, equine, human, mouse, porcine, rat, and rhesus 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. Accession # AAA30814.
    6. 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
Related Research Areas
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