Human IL-1 RII Antibody

(3 citations)
(1 Review)
  
  • Species Reactivity
    Human
  • Specificity
    Detects human IL‑1 RII in direct ELISAs and Western blots. In direct ELISAs, less than 1% cross‑reactivity with recombinant human (rh) IL‑1 alpha, rhIL‑1 RI, recombinant mouse (rm) IL‑1 alpha, rhIL‑1 beta, rmIL‑1 beta, recombinant rat IL‑1 beta, rhIL‑1ra, rmIL‑1ra, and recombinant rhesus monkey IL‑1ra is observed.
  • Source
    Polyclonal Goat IgG
  • Purification
    Antigen Affinity-purified
  • Immunogen
    S. frugiperda insect ovarian cell line Sf 21-derived recombinant human IL‑1 RII
    Phe14-Glu343 (Ser56Gly and Glu297Gly)
    Accession # P27930
  • 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‑1 RII (Catalog # 263-2R)
  • Immunocytochemistry
    5-15 µg/mL
    See below
  • Neutralization
    Measured by its ability to neutralize IL‑1 RII-mediated inhibition of proliferation in the D10.G4.1 mouse helper T cell line. The Neutralization Dose (ND50) is typically 15-30 µg/mL in the presence of 2 µg/mL Recombinant Human IL‑1 RII, 50 pg/mL Recombinant Human IL‑1 beta /IL‑1F2, and 1.25 µg/mL concanavalin A.
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
Immunocytochemistry
IL‑1 RII in Human PBMCs. IL‑1 RII was detected in immersion fixed human peripheral blood mononuclear cells (PBMCs) using 15 µg/mL Goat Anti-Human IL‑1 RII Antigen Affinity-purified Polyclonal Antibody (Catalog # AF‑263‑NA) for 3 hours at room temperature. Cells were stained (red) and counterstained (green). View our protocol for Fluorescent ICC Staining of Non-adherent Cells.
IL‑1 RII Inhibition of IL‑1 beta /IL‑1F2-dependent Cell Proliferation and Neutralization by Human IL‑1 RII Antibody. Recombinant Human IL‑1 RII (Catalog # 263‑2R) inhibits Recombinant Human IL‑1 beta /IL‑1F2 (Catalog # 201‑LB) induced proliferation in the D10.G4.1 mouse helper T cell line in a dose-dependent manner (orange line). Inhibition of Recombinant Human IL‑1 beta /IL‑1F2 (50 pg/mL) activity elicited by Recombinant Human IL‑1 RII (2 µg/mL) is neutralized (green line) by increasing concentrations of Goat Anti-Human IL‑1 RII Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-263-NA). The ND50 is typically 15‑30 µg/mL in the presence of concanavalin A (1.25 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-1 RII

Two distinct types of receptors that bind the pleiotropic cytokines IL-1 alpha and IL-1 beta have been described. The IL-1 receptor type I is an 80 kDa transmembrane protein that is expressed predominantly by T cells, fibroblasts and endothelial cells. IL-1 receptor type II is a 68 kDa transmembrane protein found on B lymphocytes, neutrophils, monocytes, large granular leukocytes and endothelial cells. Both receptors are members of the immunoglobulin superfamily and show approximately 28% sequence similarity in their extracellular domains. The two receptor types do not heterodimerize in a receptor complex.

An IL-1 receptor accessory protein that can heterodimerize with the type I receptor in the presence of IL-1 alpha or IL-1 beta but not IL-1ra, was identified (1). This type I receptor complex appears to mediate all the known IL-1 biological responses. The receptor type II has a short cytoplasmic domain and does not transduce IL-1 signals. In addition to the membrane-bound form of IL-1 RII, a naturally-occurring soluble form of IL-1 RII has been described. It has been suggested that the type II receptor, either as the membrane-bound or as the soluble form, serves as a decoy for IL-1 and inhibits IL-1 action by blocking the binding of IL-1 to the signaling type I receptor complex. Recombinant IL-1 soluble receptor type II is a potent antagonist of IL-1 action.

  • References:
    1. Greenfeder, S. et al. (1995) J. Biol. Chem. 270:13757.
  • Long Name:
    Interleukin 1 Receptor II
  • Entrez Gene IDs:
    7850 (Human); 16178 (Mouse)
  • Alternate Names:
    beta; CD121b antigen; CD121b; IL-1 R beta; IL-1 RII; IL1R2; IL1RBCD121 antigen-like family member B; IL-1R-beta; IL1RII; IL-1RII; IL-1RT2; IL-1RT-2; interleukin 1 receptor, type II; Interleukin-1 receptor beta; MGC47725
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.

3 Citations: Showing 1 - 3
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Applications
Sample Type
  1. Ectopic expression of interleukin-1 receptor type II enhances cell migration through activation of the pre-interleukin 1alpha pathway.
    Authors: Chang SY, Su PF, Lee TC
    Cytokine, 2009;45(1):32-8.
    Species: Human
    Sample Type: Whole Cells
    Application: ICC
  2. Synergism of TNF and IL-1 in the induction of matrix metalloproteinase-3 in trabecular meshwork.
    Authors: Kelley MJ, Rose AY, Song K, Chen Y, Bradley JM, Rookhuizen D, Acott TS
    Invest. Ophthalmol. Vis. Sci., 2007;48(6):2634-43.
    Species: Human
    Sample Type: Cell Lysates
    Application: WB
  3. Chorionic gonadotropin down-regulates the expression of the decoy inhibitory interleukin 1 receptor type II in human endometrial epithelial cells.
    Authors: Herrmann-Lavoie C, Rao CV, Akoum A
    Endocrinology, 2007;148(11):5377-84.
    Species: Human
    Sample Type: Cell Lysates
    Application: WB
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Average Rating: 5 (Based on 1 review)

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ELISA Human IL-1 RII Antibody AF-263-NA
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 ELISA Human Anonymous 11/09/2017
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ELISA Human IL-1 RII Antibody AF-263-NA
ELISA: Human IL-1 RII Antibody [AF-263-NA]

Summary

ApplicationELISA
Sample TestedSerum and Plasma,Cell culture supernatant
SpeciesHuman

Other Experimental Details

Other Experimental DetailsMAB663 was used as the capture and AF263 was used as the detection antibody for the sandwich ELISA for sIL-1R2. The immunoassay standard was 263-2R. Assay had sensitivity of ~10pg/ml.

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