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 ...read more
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 ...read more
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.
Buffer
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.
Preservative
No Preservative
Concentration
LYOPH
Reconstitution Instructions
Reconstitute at 0.5 mg/mL in sterile PBS.
Notes
This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.
Alternate Names for ST2/IL-33R Antibody (245707) [Unconjugated]
DER4
DER4ST2growth stimulation-expressed
Fit-1
IL-1 R4
IL1R4
IL-1R4
IL-1RL1
IL-33 R
IL33R
IL-33R
interleukin 1 receptor-like 1
interleukin 1 receptor-related protein
interleukin-1 receptor-like 1
Ly84
MGC32623
Protein ST2
ST2
ST2L
ST2V
T1
T1homolog of mouse growth stimulation-expressed
Background
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).
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.
Limitations
This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.
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