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Human GITR/TNFRSF18 Antibody

  • Specificity
    Detects human GITR in direct ELISAs and Western blots. Does not cross-react with recombinant human (rh) 4‑1BB, recombinant mouse (rm) 4‑1BB, rhCD27, rmCD27, rhCD30, rmCD30, rhCD40, rmCD40, rhDR3, rhDR6, rhEDAR, rmEDAR, rhFas, rmFAS, rmGITR, rhHVEM, rhLymphotoxin R beta, rmLymphotoxin R beta, rhNGF R, rhOPG, rmOPG, rhRANK, rmRANK, rhTAJ, rhTNF RI, rmTNF RI, rhTNF RII, or rmTNF RII.
  • Source
    Monoclonal Mouse IgG1 Clone # 110416
  • Purification
    Protein A or G purified from hybridoma culture supernatant
  • Immunogen
    Mouse myeloma cell line NS0-derived recombinant human GITR/TNFRSF18
    Gln26-Glu161 (Thr43Ala)
    Accession # Q9Y5U5
  • Formulation
    Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied 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
  • Western Blot
    1 µg/mL
    Recombinant Human GITR/TNFRSF18 Fc Chimera (Catalog # 689-GR)
    under non-reducing conditions only
  • Flow Cytometry
    2.5 µg/106 cells
    Human peripheral blood CD4+ T cells treated with PHA
  • Blockade of Receptor-ligand Interaction
    1-2 µg/mL
    • Human GITR/TNFRSF18 Sandwich Immunoassay
      Reagent
  • ELISA Capture
    2-8 µg/mL 
    Human GITR/TNFRSF18 Antibody (Catalog # MAB689)
  • ELISA Detection
    0.1-0.4 µg/mL 
    Human GITR/TNFRSF18 Biotinylated Antibody (Catalog # BAF689)
  • ELISA Standard
     
    Recombinant Human GITR/TNFRSF18 Fc Chimera Protein, CF (Catalog # 689-GR)
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.
Preparation and Storage
  • Reconstitution
    Reconstitute at 0.5 mg/mL in sterile PBS.
  • 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: GITR/TNFRSF18

GITR (glucocorticoid-induced tumor necrosis factor receptor, also named AITR, activation-inducible TNF R family member), is a 228 amino acid (aa) type I transmembrane protein belonging to the TNF R family and has been designated TNFRSF18. The GITR cytoplasmic domain has striking homology with the cytoplasmic domain of 4-1BB and CD27. Human GITR shares 55% homology with murine GITR. GITR is expressed at low levels in peripheral blood T cells, bone marrow, thymus, spleen, and lymph nodes. In contrast to mouse GITR, expression of human GITR is not induced by treatment with dexamethasone, but is up-regulated by antigen stimulation or by treatment with anti-CD3 plus anti-CD28, or PMA plus ionomycin. Human GITR ligand was identified from human umbilical vein endothelial cells and is a 177 aa polypeptide belonging to the TNF superfamily (TNFSF18). Ligation of GITR can activate NF-kappa B through TRAF2, and protect T cells from TCR activation-induced cell death. It has been proposed that GITR ligand and GITR may modulate T lymphocyte functions.

  • References:
    1. Nocentini, G. et al. (1997) Proc. Natl. Acad. Sci. USA 94:6216.
    2. Kwon, B. et al. (1999) J. Biol. Chem. 274:6056.
    3. Gurney, A.L. et al. (1999) Current Biology 9:215.
    4. Kwon, B. et al. (1999) Current Opinion in Immunology 11:340.
  • Long Name:
    Glucocorticoid Induced TNF Receptor Family Related Gene
  • Entrez Gene IDs:
    21936 (Human); 8784 (Human); 500598 (Rat);
  • Alternate Names:
    AITR; CD357; TNFRSF18; Activation-inducible TNFR family receptor; AITRTNF receptor superfamily activation-inducible protein; CD357 antigen; GITR-D; GITRtumor necrosis factor receptor superfamily member 18; Glucocorticoid-induced TNFR-related protein; tumor necrosis factor receptor superfamily, member 18
Related Research Areas
Citations:

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.

Showing Results 1 - 5 of 5
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Sample Type
  1. Human anti-inflammatory macrophages induce Foxp3+ GITR+ CD25+ regulatory T cells, which suppress via membrane-bound TGFbeta-1.
    Authors: Savage ND, De Boer T, Walburg KV, Joosten SA, van Meijgaarden K, Geluk A, Ottenhoff TH
    J. Immunol., 2008;181(3):2220-6.
    Species: Human
    Application: Flow Cytometry,
  2. Natural and induced CD4+CD25+ cells educate CD4+CD25- cells to develop suppressive activity: the role of IL-2, TGF-beta, and IL-10.
    Authors: Zheng SG, Wang JH, Gray JD, Soucier H, Horwitz DA
    J. Immunol., 2004;172(9):5213-21.
    Species: Human
    Application: Flow Cytometry,
  3. Cord blood CD4(+)CD25(+)-derived T regulatory cell lines express FoxP3 protein and manifest potent suppressor function.
    Authors: Godfrey WR, Spoden DJ, Ge YG, Baker SR, Liu B, Levine BL, June CH, Blazar BR, Porter SB
    Blood, 2005;105(2):750-8.
  4. Suppressive properties of human CD4+CD25+ regulatory T cells are dependent on CTLA-4 expression.
    Authors: Birebent B, Lorho R, Lechartier H, de Guibert S, Alizadeh M, Vu N, Beauplet A, Robillard N, Semana G
    Eur. J. Immunol., 2004;34(12):3485-96.
  5. Cancer immunoediting by GITR (glucocorticoid-induced TNF-related protein) ligand in humans: NK cell/tumor cell interactions.
    Authors: Baltz KM, Krusch M, Bringmann A, Brossart P, Mayer F, Kloss M, Baessler T, Kumbier I, Peterfi A, Kupka S, Kroeber S, Menzel D, Radsak MP, Rammensee HG, Salih HR
    FASEB J., 2007;21(10):2442-54.
    Species: Human
    Application: Flow Cytometry,

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