Key Product Details

Species Reactivity

Validated:

Human

Cited:

Human, Rat

Applications

Validated:

Immunohistochemistry, Western Blot, Neutralization, Flow Cytometry, CyTOF-ready

Cited:

Immunohistochemistry, Immunohistochemistry-Paraffin, Immunohistochemistry-Frozen, Western Blot, Neutralization, Flow Cytometry, Immunocytochemistry, Bioassay

Label

Unconjugated

Antibody Source

Polyclonal Goat IgG
View all IL-18 R alpha/IL-1 R5 Primary Antibodies »

Product Specifications

Immunogen

Mouse myeloma cell line NS0-derived recombinant human IL‑18 R alpha /IL-1 R5
Glu20-Arg329
Accession # Q13478

Specificity

Detects human IL‑18 R alpha /IL-1 R5 in direct ELISAs and Western blots. In direct ELISAs, approximately 5% cross-reactivity with recombinant mouse IL‑18 R alpha is observed.

Clonality

Polyclonal

Host

Goat

Isotype

IgG

Endotoxin Level

<0.10 EU per 1 μg of the antibody by the LAL method.

Scientific Data Images for Human IL‑18 R alpha /IL‑1 R5 Antibody

IL‑18 Ra/IL‑1 R5 antibody in Human Skin by Immunohistochemistry (IHC-Fr).

IL‑18 R alpha /IL‑1 R5 in Human Skin.

IL‑18 Ra/IL‑1 R5 was detected in immersion fixed frozen sections of human skin using Goat Anti-Human IL‑18 Ra/IL‑1 R5 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF840) at 1.7 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Goat HRP-AEC Cell & Tissue Staining Kit (red; Catalog # CTS009) and counterstained with hematoxylin (blue). Specific labeling was localized to the plasma membrane of keratinocytes. View our protocol for Chromogenic IHC Staining of Frozen Tissue Sections.
IFN‑ gamma Secretion Induced by IL‑18/IL‑1F4 and Neutralization by Human IL‑18 R alpha /IL‑1 R5 Antibody.

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

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 # DIF50C). IFN‑ gamma secretion elicited by IL‑18/IL‑1F4 (40 ng/mL) is neutralized (green line) by increasing concentrations of Goat Anti-Human IL‑18 Ra/IL‑1 R5 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF840). The ND50 is typically 0.1-0.4 µg/mL.

Applications for Human IL‑18 R alpha /IL‑1 R5 Antibody

Application
Recommended Usage

CyTOF-ready

Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.

Flow Cytometry

2.5 µg/106 cells
Sample: Human CD3+ T cells treated with PHA and Recombinant Human IL‑2 (Catalog # 202-IL)

Immunohistochemistry

5-15 µg/mL
Sample: Immersion fixed frozen sections of human skin

Western Blot

0.1 µg/mL
Sample: Recombinant Human IL‑18 R alpha /IL‑1 R5 Fc Chimera (Catalog # 816-LR)

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. The Neutralization Dose (ND50) is typically 0.1-0.4 µg/mL in the presence of 40 ng/mL Recombinant Human IL‑18/IL‑1F4.

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Advanced Features

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Flow Cytometry

Formulation, Preparation, and Storage

Purification

Antigen Affinity-purified

Reconstitution

Reconstitute at 0.2 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.

Formulation

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.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store 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.

Calculators

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.

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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 IL-18 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 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 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.

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

Alternate Names

CD218a, IL-1 R5, IL-1 Rrp, IL-18 R1, IL-18Ra, IL18R alpha, IL18R1

Entrez Gene IDs

8809 (Human); 16182 (Mouse)

Gene Symbol

IL18R1

UniProt

Q13478

Additional IL-18 R alpha/IL-1 R5 Products

Product Documents for Human IL‑18 R alpha /IL‑1 R5 Antibody

Certificate of Analysis

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Note: Certificate of Analysis not available for kit components.

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Product Specific Notices for Human IL‑18 R alpha /IL‑1 R5 Antibody

For research use only

Citations for Human IL‑18 R alpha /IL‑1 R5 Antibody

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Protocols

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