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Mouse IL-12 R beta 2 Antibody

Catalog #: MAB8650
2 Citations Datasheet / COA / SDS
Catalog # Availability Size / Price Qty
MAB8650
MAB8650-SP
Product Details
Citations (2)
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Summary Preparation and Storage Reconstitution Calculator Background Product Datasheets Related Research Areas

Mouse IL-12 R beta 2 Antibody Summary

Species Reactivity
Mouse
Specificity
Detects mouse IL-12 R beta 2 in direct ELISAs.
Source
Monoclonal Rat IgG2B Clone # 918102
Purification
Protein A or G purified from hybridoma culture supernatant
Immunogen
Mouse myeloma cell line NS0-derived recombinant mouse IL-12 R beta 2
Met1-Asn637
Accession # P97378
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.
Endotoxin Level
<0.10 EU per 1 μg of the antibody by the LAL method.
Label
Unconjugated

Applications

Recommended Concentration
Sample
Blockade of Receptor-ligand Interaction
In a functional ELISA, 30-180 ng/mL of this antibody will block 50% of the binding of 100 ng/mL of Recombinant Mouse IL‑12 (Catalog # 419-ML) to immobilized Recombinant Mouse IL-12 R beta 2 Fc Chimera (Catalog # 7406-MR) coated at 500 ng/mL (100 μL/well). At 1 μg/mL, this antibody will block >90% of the binding.
 

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Preparation and Storage

Reconstitution
Reconstitute at 0.5 mg/mL in sterile PBS.
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Shipping
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
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-12 R beta 2

The high‑affinity IL‑12 receptor complex includes the 100 kDa IL‑12 receptor beta 1 (IL‑12 R beta 1) and the 130 kDa IL‑12 Receptor  beta 2 (IL‑12 R beta 2) subunits, both of which are type I transmembrane proteins that belong to the cytokine receptor superfamily (1, 2). The complex's ligand, IL‑12, is a disulfide‑linked heterodimer composed of 35 kDa (IL‑12 alpha  p35) and 40 kDa (IL‑12 beta  p40) subunits. IL‑12 R beta 2 binds IL‑12 alpha and signals through Jak2, while IL‑12 R beta 1 binds IL‑12 beta and signals through Tyk2 (3).
IL‑12 R beta 1 is also a subunit of the IL‑23 receptor complex (3). The 874 amino acid (aa) mouse IL‑12 R beta 2 precursor includes a 23 aa signal peptide, a 614 aa extracellular domain (ECD), a 21 aa transmembrane segment and a 216 aa cytoplasmic region. The ECD possesses one C2‑type Ig‑like domain, five fibronectin type III (Fn III) repeats, 14 potential N‑glycosylation sites, and a WSXWS motif, while the cytoplasmic region contains a Box 1 motif and three tyrosine phosphorylation sites that presumably mediate intracellular signaling (3). The mouse IL‑12 R beta 2 ECD shares 91% aa sequence identity with rat IL‑12 R beta 2, and 68% with human, porcine and bovine IL‑12 R beta 2. Human and mouse IL‑12 R beta 2 do not bind cross‑species IL‑12 (2). A 734 aa mouse isoform that lacks aa 363-503 within the Fn III domains is reported (4). Unlike IL‑12 R beta 1, which is constitutively expressed on T cells, NK cells and B cells, IL‑12 R beta 2 expression is more restricted (2). On naïve T cells, IL‑12 R beta 2 is expressed following STAT1 activation by IFN‑ gamma, IL‑27 and/or T cell receptor ligation. This up‑regulation allows IL‑12 to promote Th1, but not Th2, differentiation (5-7). Among B cells, surface expression is limited to naïve germinal center and memory B cells, and myeloma cells (2). Deletion of IL‑12 R beta 2 causes systemic overexpression of IL‑6, accelerated maturation of thymocytes, deficient regulatory T cell maturation and function, and reduced splenic T cell apoptosis (2, 8-10). These mice are susceptible to autoimmune diseases such as experimental autoimmune encephalitis and spontaneous B cell malignancies
(2, 8-10). In humans, polymorphism of the IL‑12 R beta 2 gene is associated with systemic sclerosis (11).

References
  1. Presky, D.H. et al. (1996) Proc. Natl. Acad. Sci. USA 93:14002.
  2. Pistoia, V. et al. (2009) J. Clin. Oncol. 27:4809.
  3. Zou, J. et al. (1997) J. Biol. Chem. 272:6073.
  4. GenBank protein Accession # P97378.
  5. Rogge, L. et al. (1997) J. Exp. Med. 185:825.
  6. Becskei, A. and M.J. Grusby (2007) FEBS Lett. 581:5199.
  7. Szabo, S.J. et al. (1997) J. Exp. Med. 185:817.
  8. Zhao, Z. et al. (2008) J. Immunol. 181:3870.
  9. Gran, B. et al. (2010) Exp. Mol. Pathol. 89:126.
  10. Airoldi, I. et al. (2005) Blood 106:3846.
  11. Bossini-Castillo, L. et al. (2011) Hum. Mol. Genet. Nov. 29 [Epub ahead of print].
Long Name
Interleukin 12 Receptor beta 2
Entrez Gene IDs
3595 (Human); 16162 (Mouse)
Alternate Names
IL-12 R beta 2; IL-12 receptor beta 2; IL-12 receptor subunit beta-2; IL12R beta 2; IL-12R subunit beta-2; IL12RB2; IL-12Rb2; IL-12R-beta-2; interleukin 12 receptor, beta 2; interleukin-12 receptor beta-2 chain; interleukin-12 receptor subunit beta-2

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Citations for Mouse IL-12 R beta 2 Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

2 Citations: Showing 1 - 2
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  1. P2Y6 signaling in alveolar macrophages prevents leukotriene-dependent type 2 allergic lung inflammation
    Authors: J Nagai, B Balestrier, LB Fanning, T Kyin, H Cirka, J Lin, M Idzko, A Zech, EY Kim, PJ Brennan, JA Boyce
    J. Clin. Invest., 2019-12-02;0(0):.
    Species: Mouse
    Sample Types: In Vivo
    Applications: Neutralization
  2. IL-23 Inhibits Melanoma Development by Augmenting DNA Repair and Modulating T Cell Subpopulations
    Authors: Tahseen H Nasti
    J. Immunol, 2016-12-21;0(0):.
    Species: Mouse
    Sample Types: Whole Cells
    Applications: Flow Cytometry

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