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Human IL-1 RII Antibody

R&D Systems, part of Bio-Techne | Catalog # AF-263-NA

R&D Systems, part of Bio-Techne
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AF-263-NA
AF-263-SP

Key Product Details

Species Reactivity

Validated:

Human

Cited:

Human

Applications

Validated:

Neutralization, Western Blot

Cited:

Immunocytochemistry, Immunohistochemistry, Neutralization, Western Blot

Label

Unconjugated

Antibody Source

Polyclonal Goat IgG

Product Specifications

Immunogen

S. frugiperda insect ovarian cell line Sf 21-derived recombinant human IL-1 RII
Phe14-Glu343 (Ser56Gly and Glu297Gly)
Accession # P27930

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.

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-1 RII Antibody

IL‑1 RII Inhibition of IL‑1 beta/IL‑1F2-dependent Cell Proliferation and Neutralization by Human IL‑1 RII Antibody.

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 (263-2R) inhibits Recombinant Human IL-1 beta/IL-1F2 (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.

Applications for Human IL-1 RII Antibody

Application
Recommended Usage

Western Blot

0.1 µg/mL
Sample: Recombinant Human IL-1 RII (Catalog # 263-2R)

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.

Reviewed Applications

Read 3 reviews rated 4.7 using AF-263-NA in the following applications:

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.

Reconstitution Buffer Available:
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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.

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

Alternate Names

CD121b, IL-1 R beta, IL-1RII, IL1R2, IL1RII

Entrez Gene IDs

7850 (Human); 16178 (Mouse)

Gene Symbol

IL1R2

UniProt

Additional IL-1 RII Products

Product Documents for Human IL-1 RII Antibody

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Note: Certificate of Analysis not available for kit components.

Product Specific Notices for Human IL-1 RII Antibody

For research use only

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