Mouse IL-18 R alpha /IL-1 R5 Antibody

Catalog # Availability Size / Price Qty
IFN‑ gamma  Secretion Induced by IL‑18/IL‑1F4 and Neutralization by Mouse IL‑18 R alpha /IL‑1 R5 Antibody.
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Product Details
Citations (10)
Supplemental Products

Mouse IL-18 R alpha /IL-1 R5 Antibody Summary

Species Reactivity
Detects mouse IL‑18 R alpha in direct ELISAs and Western blots. In direct ELISAs, approximately 25% cross-reactivity with recombinant human IL‑18 R is observed.
Polyclonal Goat IgG
Antigen Affinity-purified
Mouse myeloma cell line NS0-derived recombinant mouse IL‑18 R alpha /IL-1 R5
Accession # Q61098
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Endotoxin Level
<0.10 EU per 1 μg of the antibody by the LAL method.


Recommended Concentration
Western Blot
0.1 µg/mL
Recombinant Mouse IL‑18 R alpha /IL‑1 R5
Flow Cytometry
0.25 µg/106 cells
B6 splenocytes
Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.
Measured by its ability to neutralize IL‑18/IL‑1F4-induced IFN‑ gamma secretion in activated mouse T cells. Ahn, H.J. et al. (1997) J. Immunol. 159:2125. The Neutralization Dose (ND50) is typically 0.2-0.8 µg/mL in the presence of 0.5 ng/mL Recombinant Mouse IL‑18/IL‑1F4 and 0.1 ng/mL Recombinant Mouse IL‑12.

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.

Scientific Data

Neutralization IFN‑ gamma  Secretion Induced by IL‑18/IL‑1F4 and Neutralization by Mouse IL‑18 R alpha /IL‑1 R5 Antibody. View Larger

IFN‑ gamma Secretion Induced by IL‑18/IL‑1F4 and Neutralization by Mouse IL‑18 R alpha /IL‑1 R5 Antibody. In the presence of Recombinant Mouse IL-12 (0.1 ng/mL, Catalog # 419-ML), Recombinant Mouse IL-18/IL-1F4 stimulates IFN-gamma secretion in activated mouse T cells in a dose-dependent manner (orange line), as measured by the Mouse IFN-gamma Quantikine ELISA Kit (Catalog # MIF00). Under these conditions, IFN-gamma secretion elicited by Recombinant Mouse IL-18/IL-1F4 (0.5 ng/mL) is neutralized (green line) by increasing concentrations of Mouse IL-18 Ra/IL-1 R5 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF856). The ND50 is typically 0.2-0.8 µg/mL.

Flow Cytometry View Larger

Detection of IL‑18 R alpha /IL‑1 R5 in B6 splenocytes by Flow Cytometry. B6 splenocytes were stained with Rat Anti-Mouse CD3 PE‑conjugated Monoclonal Antibody (Catalog # FAB4841P) and either (A) Goat Anti-Mouse IL‑18 R alpha /IL‑1 R5 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF856) or (B) Normal Goat IgG Control (Catalog # AB-108-C) followed by Allophycocyanin-conjugated Anti-Goat IgG Secondary Antibody (Catalog # F0108). View our protocol for Staining Membrane-associated Proteins.

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.


Preparation and Storage

Reconstitute at 0.2 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-18 R alpha/IL-1 R5

Interleukin-18 (IL-18) is a member of the IL-1 family of cytokines and shares numerous immuno-regulatory functions with IL-12. The functional IL-18 receptor complex is composed of two subunits designated IL18 R alpha (also termed IL-1 R5 and IL-1 Rrp) and IL-18 R beta (also termed 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 by itself binds IL-18 with low affinity and IL-18 R beta does not bind IL18 in vitro, coexpression of IL-18 R alpha and IL18 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 residues. 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.

Long Name
Interleukin 18 Receptor alpha
Entrez Gene IDs
8809 (Human); 16182 (Mouse)
Alternate Names
CD218a; CD218a;CDw218a;IL18R1;IL18RA;IL-18Ralpha;IL-18R-alpha;IL18Ralpha2;IL1RRP;IL-1Rrp;Interleukin-18 receptor 1; IL-1 R5; IL-1 Rrp; IL-18 R alpha; IL-18 R1; IL18R alpha; IL18R1; IL-18Ra

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Citations for Mouse IL-18 R alpha /IL-1 R5 Antibody

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.

10 Citations: Showing 1 - 10
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  1. IL-18R-mediated HSC quiescence and MLKL-dependent cell death limit hematopoiesis during infection-induced shock
    Authors: JE Howard, JNP Smith, G Fredman, KC MacNamara
    Stem Cell Reports, 2021-11-18;0(0):.
    Species: Mouse
    Sample Types: In Vivo
    Applications: In Vivo
  2. Interleukin-18 and its receptor are expressed in gonadotropin-releasing hormone neurons of mouse and rat forebrain
    Authors: S Kuwahara-O, S Maeda, K Kobayashi, Y Minato, K Tanaka, K Yamanishi, M Hata, W Li, T Hayakawa, K Noguchi, H Okamura, H Yagi
    Neurosci. Lett., 2017-04-01;0(0):.
    Species: Mouse
    Sample Types: Whole Tissue
    Applications: IHC
  3. Postnatal changes of interleukin-18 receptor immunoreactivity in neurons of the retrosplenial cortex in wild-type and interleukin-18 knock out mice
    Authors: T Hayakawa, M Hata, S Kuwahara-O, H Yagi, H Okamura
    Okajimas Folia Anat Jpn, 2017-01-01;94(3):93-99.
    Species: Mouse
    Sample Types: Whole Tissue
    Applications: IHC
  4. Increased cytokine production in IL-18 receptor alpha-deficient cells is associated with dysregulation of suppressors of cytokine signaling (SOCS).
    Authors: Nold-Petry CA, Nold MF, Nielsen JW, Bustamante A, Zepp JA, Storm KA, Hong JW, Kim SH, Dinarello CA
    J. Biol. Chem., 2009-07-10;0(0):.
    Species: Mouse
    Sample Types: Whole Cells
    Applications: Neutralization
  5. IL-18 induces a marked gene expression profile change and increased Ccl1 (I-309) production in mouse mucosal mast cell homologs.
    Authors: Wiener Z, Pocza P, Racz M, Nagy G, Tolgyesi G, Molnar V, Jaeger J, Buzas E, Gorbe E, Papp Z, Rigo J, Falus A
    Int. Immunol., 2008-10-21;20(12):1565-73.
    Species: Mouse
    Sample Types: Whole Cells
    Applications: Flow Cytometry, Neutralization
  6. Protective effect of IL-18 on kainate- and IL-1beta-induced cerebellar ataxia in mice.
    Authors: Andoh T, Kishi H, Motoki K, Nakanishi K, Kuraishi Y, Muraguchi A
    J. Immunol., 2008-02-15;180(4):2322-8.
    Species: Mouse
    Sample Types: Whole Tissue
    Applications: IHC-Fr
  7. Interleukin-18 suppresses adiponectin expression in 3T3-L1 adipocytes via a novel signal transduction pathway involving ERK1/2-dependent NFATc4 phosphorylation.
    Authors: Chandrasekar B, Patel DN, Mummidi S, Kim JW, Clark RA, Valente AJ
    J. Biol. Chem., 2007-12-17;283(7):4200-9.
    Species: Mouse
    Sample Types: Whole Cells
    Applications: Flow Cytometry
  8. Combined stimulation with interleukin-18 and CpG induces murine natural killer dendritic cells to produce IFN-gamma and inhibit tumor growth.
    Authors: Chaudhry UI, Kingham TP, Plitas G, Katz SC, Raab JR, DeMatteo RP
    Cancer Res., 2006-11-01;66(21):10497-504.
    Species: Mouse
    Sample Types: Whole Cells
    Applications: Flow Cytometry
  9. Disruption of interleukin-18, but not interleukin-1, increases vulnerability to preterm delivery and fetal mortality after intrauterine inflammation.
    Authors: Wang X, Hagberg H, Mallard C, Zhu C, Hedtjarn M, Tiger CF, Eriksson K, Rosen A, Jacobsson B
    Am. J. Pathol., 2006-09-01;169(3):967-76.
    Species: Mouse
    Sample Types: Whole Tissue
    Applications: IHC-Fr
  10. Distinct modulatory effects of LPS and CpG on IL-18-dependent IFN-gamma synthesis.
    Authors: Gould MP, Greene JA, Bhoj V, DeVecchio JL, Heinzel FP
    J. Immunol., 2004-02-01;172(3):1754-62.
    Species: Mouse
    Sample Types: Whole Cells
    Applications: Neutralization


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