Human IL-18 R alpha /IL-1 R5 Alexa Fluor® 488-conjugated Antibody

  • Species Reactivity
  • Specificity
    Detects human IL-18 R alpha /IL-1 R5 in direct ELISAs. In direct ELISAs, no cross-reactivity with recombinant human (rh) IL-1 RI, rhIL-1 RII, rhIL‑1 R3, rhIL-1 R4, rhIL-1 R6, rhIL-1 R7, rhIL-1 R8, rhIL-1 R9, rhSIGIRR or recombinant mouse IL-18 R alpha is observed.
  • Source
    Monoclonal Mouse IgG1 Clone # 70625
  • Purification
    Protein A or G purified from hybridoma culture supernatant
  • Immunogen
    Mouse myeloma cell line NS0-derived recombinant human IL‑18 R alpha /IL-1 R5
    Accession # Q13478
  • Formulation
    Supplied in a saline solution containing BSA and Sodium Azide.
  • Label
    Alexa Fluor 488
  • Flow Cytometry
    5 µL/106 cells
    See below
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
Detection of IL‑18 R alpha /IL‑1 R5 in Human PBMCs by Flow Cytometry. Human peripheral blood mononuclear cells (PBMCs) treated with 10 ng/mL Recombinant Human IL‑2 (Catalog # 202-IL) and 5 μg/mL PHA for 48 hours were stained with Mouse Anti-Human IL‑18 R alpha /IL‑1 R5 Alexa Fluor® 488‑conjugated Monoclonal Antibody (Catalog # FAB840G, filled histogram) or isotype control antibody (Catalog # IC002G, open histogram). View our protocol for Staining Membrane-associated Proteins.
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-18 R alpha/IL-1 R5

Interleukin 18 (IL-18) is a member of the IL-1 family of cytokines and shares numerous immunoregulatory functions with IL-12. The functional IL-18 receptor complex is composed of two subunits designated IL-18 R alpha (also known as IL-1 R5 and IL-1 Rrp) and IL-18 R beta (also known as IL-1 R7 and AcPL). Both IL-18 R alpha and IL-18 R beta belong to 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 cDNA encodes a 541 amino acid (aa) precursor type I membrane protein with a hydrophobic signal, an extracellular domain comprised of three immunoglobulin-like domains, a transmembrane domain and a cytoplasmic region of approximately 200 aa. Human and mouse IL-18 R share 65% amino acid sequence homology. IL-18 R is widely expressed in numerous tissues including spleen, thymus, leukocyte, liver, lung, heart, small and large intestine, prostate and placenta.

  • References:
    1. Parnet, P. et al. (1996) J. Biol. Chem. 271:3967.
    2. Torigoe, K. et al. (1997) J. Biol. Chem. 272:25737.
    3. Born, T.L. et al. (1998) J. Biol. Chem. 273:29445.
  • Long Name:
    Interleukin 18 Receptor alpha
  • Entrez Gene IDs:
    8809 (Human); 16174 (Mouse)
  • Alternate Names:
    CD218a; IL-1 R5; IL-1 Rrp; IL-18 R1; IL18R alpha; IL18R1; IL-18Ra
Related Research Areas
Isotype Controls
Description Application Cat# Citations Images  

Mouse IgG1 Alexa Fluor® 488-conjugated Antibody

Ctrl IC002G 2  
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Staining Reagents
Description Application Cat# Citations Images  

Flow Cytometry Staining Buffer (1X)

Flow FC001 3
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Flow Cytometry Mouse Lyse Buffer (10X)

Flow FC003 1
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Flow Cytometry Human Lyse Buffer (10X)

Flow FC002 1
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