P815 mouse mastocytoma cell line was stained with Rat Anti-Mouse ST2/IL-33 R Monoclonal Antibody (Catalog # MAB10041, filled histogram) or isotype control antibody (Catalog # MAB0061, open histogram), followed by Allophycocyanin-conjugated Anti-Rat IgG F(ab')₂Secondary Antibody (Catalog # F0113).

Cell Proliferation Induced by IL‑33 and Neutralization by Mouse ST2/IL-33 R Antibody.

Recombinant Human IL-33 induces proliferation in the D10.G4.1 mouse helper T cell line in a dose-dependent manner (orange line), as measured by the Resazurin (Catalog # AR002). Under these conditions, proliferation elicited by IL-33 is neutralized (green line) by increasing concentrations of Rat Anti-Mouse ST2/IL-33 R Monoclonal Antibody (Catalog # MAB10041). The ND₅₀ is typically 0.5-3 µg/mL.

Mouse ST2 / IL-33 R ELISA Standard Curve

Recombinant Mouse ST2/IL-33R Fc Chimera (Catalog # 1004-MR) was serially diluted and captured by Rat Anti-Mouse ST2/IL-33R Monoclonal Antibody (Catalog # MAB10041) coated on a Clear Polystyrene Microplate (Catalog # DY990). Goat Anti-Mouse ST2/IL-33R Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1004) was biotinylated and incubated with the protein captured on the plate. Detection of the standard curve was achieved by incubating Streptavidin-HRP (Catalog # DY998)

Applications for Mouse ST2/IL-33R 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

0.25 µg/10⁶ cells
Sample: P815 mouse mastocytoma cell line

Neutralization

Measured by its ability to neutralize IL‑33-induced proliferation in the D10.G4.1 mouse helper T cell line. Schmitz, J. et al. (2005) Immunity 23:479. The Neutralization Dose (ND₅₀) is typically 0.5-3 ug/mL in the presence of 1 ng/mL Recombinant Human IL‑33.

Mouse ST2/IL-33 R Sandwich Immunoassay

ELISA Capture (Matched Antibody Pair)

Recommended Concentration: 2-8 µg/mL
Use in combination with these reagents:

Detection Reagent: Mouse ST2/IL-33R Biotinylated Antibody (Catalog # BAF1004)
Standard: Recombinant Mouse ST2/IL-33R Fc Chimera Protein, CF (Catalog # 1004-MR)

Please Note: Optimal dilutions of this antibody should be experimentally determined.

Formulation, Preparation, and Storage

Purification

Protein A or G purified from hybridoma culture supernatant

Reconstitution

Reconstitute at 0.5 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.

Background: ST2/IL-33R

ST2, also known as IL-33R, IL-1 R4 and T1, is an Interleukin-1 receptor family glycoprotein that contributes to Th2 immune responses (1, 2). Mouse ST2 consists of a 306 amino acid (aa) extracellular domain (ECD) with three Ig-like domains, a 23 aa transmembrane segment, and a 212 aa cytoplasmic domain with an intracellular TIR domain (3). Alternate splicing of the 120 kDa mouse ST2 generates a soluble 60 kDa isoform that lacks the transmembrane and cytoplasmic regions (3). Within the ECD, mouse ST2 shares 68% and 81% aa sequence identity with human and rat ST2, respectively. ST2 is expressed on the surface of mast cells, activated Th2 cells, macrophages, and cardiac myocytes (4‑7). It binds IL-33, a cytokine that is up‑regulated by inflammation or mechanical strain in smooth muscle cells, airway epithelia, keratinocytes, and cardiac fibroblasts (4, 8). IL-33 binding induces the association of ST2 with IL-1R AcP, a shared signaling subunit that also associates with IL-1 RI and IL-1 R rp2 (1, 9, 10). In macrophages, ST2 interferes with signaling from IL-1 RI and TLR4 by sequestering the adaptor proteins MyD88 and Mal (6). In addition to its role in promoting mast cell and Th2 dependent inflammation, ST2 activation enhances antigen induced hypernociception and protects from atherosclerosis and cardiac hypertrophy (4, 11‑13). The soluble ST2 isoform is released by activated Th2 cells and strained cardiac myocytes and is elevated in the serum in allergic asthma (5, 7, 14). Soluble ST2 functions as a decoy receptor that blocks IL-33's ability to signal through transmembrane ST2 (9, 12‑14).

References

Barksby, H.E. et al. (2007) Clin. Exp. Immunol. 149:217.
Gadina, M. and C.A. Jefferies (2007) Science STKE 2007:pe31.
Yanagisawa, K. et al. (1993) FEBS Lett. 318:83.
Schmitz, J. et al. (2005) Immunity 23:479.
Lecart, S. et al. (2002) Eur. J. Immunol. 32:2979.
Brint, E.K. et al. (2004) Nat. Immunol. 5:373.
Weinberg, E.O. et al. (2002) Circulation 106:2961.
Sanada S. et al. (2007) J. Clin. Invest. 117:1538
Palmer, G. et al. (2008) Cytokine 42:358.
Chackerian, A.A. et al. (2007) J. Immunol. 179:2551.
Allakhverdi, Z. et al. (2007) J. Immunol. 179:2051.
Verri Jr., W.A. et al. (2008) Proc. Natl. Acad. Sci. 105:2723.
Miller, A.M. et al. (2008) J. Exp. Med. 205:339.
Hayakawa, H. et al. (2007) J. Biol. Chem. 282:26369.

Long Name

Interleukin 33 Receptor

Alternate Names

DER4, Fit-1, IL-1 R4, IL-1R4, IL-1RL1, IL-33 R, IL-33R, IL1R4, IL33R, Ly84, ST2L, ST2V, T1

Entrez Gene IDs

9173 (Human); 17082 (Mouse)

Gene Symbol

IL1RL1

UniProt

P14719

Additional ST2/IL-33R Products

Product Documents for Mouse ST2/IL-33R Antibody

Product Datasheets

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COA

SDS

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Product Specific Notices for Mouse ST2/IL-33R Antibody

For research use only

Citations
Reviews

Calculators
Flow Cytometry

Mouse ST2/IL-33R Antibody

R&D Systems, part of Bio-Techne | Catalog # MAB10041

Key Product Details

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Product Specifications

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Scientific Data Images for Mouse ST2/IL-33R Antibody

Detection of ST2/IL-33 R in P815 Mouse Cell Line by Flow Cytometry.