Mouse ST2/IL-33R Alexa Fluor™ Plus 555-conjugated Antibody

R&D Systems, part of Bio-Techne | Catalog # AF1004AFP555

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AF1004AFP555-100UG
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Key Product Details

Species Reactivity

Mouse

Applications

Western Blot, Neutralization

Label

Alexa Fluor Plus 555 (Excitation = 558 nm, Emission = 572 nm)

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

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

Applications

Application
Recommended Usage

Western Blot

Optimal dilution of this antibody should be experimentally determined.

Neutralization

Optimal dilution of this antibody should be experimentally determined.

Formulation, Preparation, and Storage

Formulation

Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Protect from light. Do not freeze. 12 months from date of receipt, 2 to 8 °C as supplied

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

Product Datasheets

Certificate of Analysis

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Note: Certificate of Analysis not available for kit components.

Product Specific Notices


This product is provided under an intellectual property license from Life Technologies Corporation. The transfer of this product is conditioned on the buyer using the purchased product solely in research conducted by the buyer, excluding contract research or any fee for service research, and the buyer must not (1) use this product or its components for (a) diagnostic, therapeutic or prophylactic purposes; (b) testing, analysis or screening services, or information in return for compensation on a per-test basis; or (c) manufacturing or quality assurance or quality control, and/or (2) sell or transfer this product or its components for resale, whether or not resold for use in research. For information on purchasing a license to this product for purposes other than as described above, contact Life Technologies Corporation, 5781 Van Allen Way, Carlsbad, CA 92008 USA or outlicensing@thermofisher.com.

For research use only

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