Human IL-18 R beta /IL-1 R7 Antibody

(1 citations)   
  • Species Reactivity
    Human
  • Specificity
    Detects human IL-18 R beta in direct ELISAs and Western blots. In direct ELISAs, less than 1% cross-reactivity with recombinant mouse IL‑18 R beta (AcPL), recombinant human (rh) IL-18 R, rhIL-1 R1, rhIL-1 RII, and rhIL-1 Rrp2 is observed.
  • Source
    Polyclonal Goat IgG
  • Purification
    Antigen Affinity-purified
  • Immunogen
    Mouse myeloma cell line NS0-derived recombinant human IL-18 R beta /IL-1 R7
    Phe20-Arg356
    Accession # O95256
  • Formulation
    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.
  • Endotoxin Level
    <0.10 EU per 1 μg of the antibody by the LAL method.
  • Label
    Unconjugated
Applications
  •  
    Recommended
    Concentration
    Sample
  • Western Blot
    0.1 µg/mL
    Recombinant Human IL‑18 R beta /IL‑1 R7 Fc Chimera (Catalog # 118-AP)
  • Neutralization
    Measured by its ability to neutralize IL‑18/IL‑1F4-induced IFN‑ gamma secretion in the KG‑1 human acute myelogenous leukemia cell line. Novick, D. et al. (1999) Immunity 10(1):127. The Neutralization Dose (ND50) is typically 0.3‑1.2 µg/mL in the presence of 40 ng/mL Recombinant Human IL‑18/IL‑1F4 and 20 ng/mL Recombinant Human TNF‑ alpha.
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
IFN‑ gamma secretion Induced by IL‑18/IL‑1F4 and Neutralization by Human IL‑18 R beta /IL‑1 R7 Antibody. In the presence of Recombinant Human TNF‑ alpha (20 ng/mL, Catalog # 210-TA), Recombinant Human IL‑18/IL‑1F4 stimulates IFN‑ gamma secretion in the KG‑1 human acute myelogenous leukemia cell line in a dose-dependent manner (orange line), as measured by the Human IFN‑ gamma Quantikine ELISA Kit (Catalog # DIF50). Under these conditions, IFN‑ gamma secretion elicited by Recombinant Human IL‑18/IL‑1F4 (40 ng/mL) is neutralized (green line) by increasing concentrations of Human IL‑18 R beta /IL‑1 R7 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF118). The ND50 is typically 0.3-1.2 µg/mL.
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. *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-18 R beta/IL-1 R7

IL-18, originally described as an interferon-gamma inducing factor (IGIF), is a member of the IL-1 family of cytokines that has multiple immunoregulatory functions. It has potent IFN-gamma inducing activities and plays a key role in the activation of T helper type 1 (Th1) responses. The functional IL-18 receptor complex consists of two components, the IL‑18 R alpha (IL-1 R5) and IL-18 R beta (also termed IL-1 R7 and AcPL) subunits. Both subunits are members of the IL-1 receptor superfamily. Although IL‑18 R alpha by itself binds IL-18 with low-affinity and IL-18 R beta does not bind IL-18 in vitro, co-expression of IL‑18 R alpha and IL-18 R beta is required for high-affinity binding and IL-18 responsiveness. Human IL-18 R beta cDNA encodes a 599 amino acid (aa) residue precursor type I membrane protein with a 14 aa signal peptide, a 342 aa extracellular region containing three immunoglobulin-like domains, a single transmembrane domain and a 222 aa cytoplasmic domain. Human and mouse IL-18 R beta share 65% aa sequence identity. The expression of IL-18 R beta parallels that of IL-18 R alpha and is detected in numerous tissues including lung, spleen, leukocytes and colon.

  • References:
    1. Born, T.L. et al. (1998) J. Biol. Chem. 273:29445.
    2. Okamura, H. et al. (2000) in Cytokine Reference, Vol. 2:1605, Academic Press.
  • Long Name:
    Interleukin 18 Receptor beta
  • Entrez Gene IDs:
    8807 (Human); 16174 (Mouse)
  • Alternate Names:
    Accessory protein-like; AcPL; CD218 antigen-like family member B; CD218b antigen; CD218b; CDw218b; IL-1 R7; IL-18 R beta; IL-18 receptor accessory protein; IL-18 receptor beta; IL18R beta; IL-18RAcP; IL18RAP; IL18RB; IL-18Rb; IL-18Rbeta; IL-18R-beta; IL-1R accessory protein-like; IL1R7; IL-1R7; IL-1R-7; IL-1RAcPL; interleukin 18 receptor accessory protein; Interleukin-1 receptor 7; interleukin-18 receptor accessory protein; Interleukin-18 receptor accessory protein-like; Interleukin-18 receptor beta; MGC120589; MGC120590
Related Research Areas
Citations:

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

1 Citations: Showing 1 - 1

  1. Defective phosphorylation of interleukin-18 receptor beta causes impaired natural killer cell function in systemic-onset juvenile idiopathic arthritis.
    Authors: De Jager W, Vastert SJ, Beekman JM, Wulffraat NM, Kuis W, Coffer PJ, Prakken BJ
    Arthritis Rheum., 2009;60(9):2782-93.
    Species: Human
    Sample Type: Cell Lysates
    Application: IP
Isotype Controls
Description Application Cat# Citations Images  

Normal Goat IgG Control

Ctrl AB-108-C 191  
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Secondary Antibodies
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Goat IgG HRP-conjugated Antibody

WB, Simple Western HAF109 19  
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Goat IgG HRP-conjugated Antibody

WB HAF017 15  
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Goat IgG (H+L) PE-conjugated Antibody

Flow F0107 4  
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Donkey Anti-Goat IgG NorthernLights™ NL557-conjugated Antibody

Flow, IHC, ICC NL001 9
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Donkey Anti-Goat IgG NorthernLights™ NL493-conjugated Antibody

Flow, IHC, ICC NL003 5
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Goat IgG (H+L) APC-conjugated Antibody

Flow F0108 6  
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Goat IgG Horseradish Peroxidase-conjugated Antibody

WB HAF019 6  
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Donkey Anti-Goat IgG Antibody

WB AF109 6
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Donkey Anti-Goat IgG Biotinylated Antibody

WB BAF109 3
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Goat IgG VisUCyte HRP Polymer

IHC VC004  
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Goat IgG (H+L) Fluorescein-conjugated Antibody

Flow F0109 2  
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Donkey Anti-Goat IgG NorthernLights™ NL637-conjugated Antibody

Flow, IHC, ICC NL002
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Chicken Anti-Goat IgG Biotinylated Antibody

WB BAF019
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Rabbit Anti-Goat IgG Biotinylated Antibody

WB BAF017
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Rabbit Anti-Goat IgG (H+L) Affinity Purified PAb, X Absorbed

WB, ELISA R-401-C-ABS
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Donkey Anti-Goat IgG (H+L) PerCP-conjugated Antibody

Flow F0124
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