Mouse ST2/IL-33R Antibody

R&D Systems, part of Bio-Techne | Catalog # AF1004

R&D Systems, part of Bio-Techne
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AF1004
AF1004-SP
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BAF1004
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Key Product Details

Species Reactivity

Validated:

Mouse

Cited:

Mouse

Applications

Validated:

Neutralization, Western Blot

Cited:

Immunohistochemistry-Frozen, In vivo assay, Neutralization, Western Blot

Label

Unconjugated

Antibody Source

Polyclonal Goat IgG

View all ST2/IL-33R Antibodies »

Product Specifications

Immunogen

S. frugiperda insect ovarian cell line Sf 21-derived recombinant mouse ST2/IL-33 R
Ser27-Arg332
Accession # P14719

Specificity

Detects mouse ST2/IL-33 R in direct ELISAs and Western blots. In direct ELISAs, approximately 10% cross-reactivity with recombinant human ST2/IL-33 R 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 Mouse ST2/IL-33R Antibody

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

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

Recombinant Human IL-33 (Catalog # 3625-IL) induces proliferation in the D10.G4.1 mouse helper T cell line in a dose-dependent manner (orange line), as measured by Resazurin (Catalog # AR002). Under these conditions, proliferation elicited by IL-33 is neutralized (green line) by increasing concentrations of Goat Anti-Mouse ST2/IL-33 R Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1004). The ND50 is typically 1-6 µg/mL.

Applications for Mouse ST2/IL-33R Antibody

Application
Recommended Usage

Western Blot

0.1 µg/mL
Sample: Recombinant Mouse ST2/IL-33 R Fc Chimera (Catalog # 1004-MR)

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 1-6 μg/mL in the presence of 1 ng/mL Recombinant Human IL‑33.
Please Note: Optimal dilutions of this antibody should be experimentally determined.

Reviewed Applications

Read 1 review rated 4 using AF1004 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:
Size / Price
Qty

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

  1. Barksby, H.E. et al. (2007) Clin. Exp. Immunol. 149:217.
  2. Gadina, M. and C.A. Jefferies (2007) Science STKE 2007:pe31.
  3. Yanagisawa, K. et al. (1993) FEBS Lett. 318:83.
  4. Schmitz, J. et al. (2005) Immunity 23:479.
  5. Lecart, S. et al. (2002) Eur. J. Immunol. 32:2979.
  6. Brint, E.K. et al. (2004) Nat. Immunol. 5:373.
  7. Weinberg, E.O. et al. (2002) Circulation 106:2961.
  8. Sanada S. et al. (2007) J. Clin. Invest. 117:1538
  9. Palmer, G. et al. (2008) Cytokine 42:358.
  10. Chackerian, A.A. et al. (2007) J. Immunol. 179:2551.
  11. Allakhverdi, Z. et al. (2007) J. Immunol. 179:2051.
  12. Verri Jr., W.A. et al. (2008) Proc. Natl. Acad. Sci. 105:2723.
  13. Miller, A.M. et al. (2008) J. Exp. Med. 205:339.
  14. 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

Certificate of Analysis

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

For research use only

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