Human IFN-gamma Biotinylated Antibody

(9 citations)   
  • Species Reactivity
    Human
  • Specificity
    Detects human IFN-gamma in ELISAs and Western blots. In sandwich immunoassays, less than 3% cross-reactivity with recombinant rhesus macaque IFN‑ gamma is observed and less than 0.05% cross-reactivity with recombinat rat IFN-gamma, recombinant feline IFN-gamma, recombinant equine IFN-gamma, recombinant cotton rat IFN-gamma, recombinant canine IFN-gamma, recombinant porcine IFN-gamma, and recombinant mouse IFN-gamma is observed.
  • Source
    Polyclonal Goat IgG
  • Purification
    Antigen Affinity-purified
  • Immunogen
    E. coli-derived recombinant human IFN-gamma (R&D Systems, Catalog # 285-IF)
    Met1-Gln144
    Accession # Q14609
  • Formulation
    Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
  • Label
    Biotin
Applications
  •  
    Recommended
    Concentration
    Sample
  • Western Blot
    0.1 µg/mL
    Recombinant Human IFN-gamma (Catalog # 285-IF)
  • Immunocytochemistry
    5-15 µg/mL
    See below
    • Human IFN-gamma Sandwich Immunoassay
      Reagent
  • ELISA Capture (Matched Antibody Pair)
    2-8 µg/mL 
    Human IFN‑ gamma Antibody (Catalog # MAB2852)
  • ELISA Detection (Matched Antibody Pair)
    0.1-0.4 µg/mL 
    Human IFN‑ gamma Biotinylated Antibody (Catalog # BAF285)
  • ELISA Standard
     
    Recombinant Human IFN-gamma Protein (Catalog # 285-IF)
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.
Data Examples
Immunocytochemistry
IFN‑ gamma in Human PBMCs. IFN‑ gamma was detected in immersion fixed PMA- and ionomycin-stimulated human peripheral blood mononuclear cells (PBMCs) using 10 µg/mL Goat Anti-Human IFN‑ gamma Biotinylated Antigen Affinity-purified Polyclonal Antibody (Catalog # BAF285) for 3 hours at room temperature. Cells were stained (red) and counterstained (green). View our protocol for Fluorescent ICC Staining of Non-adherent Cells.
Immunocytochemistry
IFN‑ gamma in Human PBMCs. IFN‑ gamma was detected in immersion fixed human peripheral blood mononuclear cells (PBMCs) stimulated with PMA, ionomyocin, and monensin using Human IFN‑ gamma Biotinylated Antigen Affinity-purified Polyclonal Antibody (Catalog # BAF285) at 10 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Streptavidin (yellow; Catalog # NL999) and counterstained with DAPI (blue). View our protocol for Fluorescent ICC Staining of Non-adherent Cells.
Preparation and Storage
  • Reconstitution
    Reconstitute at 0.2 mg/mL in sterile PBS.
  • Shipping
    The product is shipped at ambient temperature. Upon receipt, store it 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: IFN-gamma
Interferon-gamma (IFN-gamma ), also known as type II or immune interferon, exerts a wide range of immunoregulatory activities and is considered to be the prototype proinflammatory cytokine. Mature human IFN-gamma exists as a non-covalently linked homodimer of 20-25 kDa variably glycosylated subunits. It shares 90% amino acid (aa) sequence identity with rhesus IFN-gamma, 59-64% with bovine, canine, equine, feline, and porcine IFN‑ gamma, and 37-43% with cotton rat, mouse, and rat IFN-gamma. IFN-gamma dimers bind to IFN-gamma RI (alpha subunits) which then interact with IFN-gamma RII (beta subunits) to form the functional receptor complex of two alpha and two beta subunits. Inclusion of IFN-gamma RII increases the binding affinity for ligand and the efficiency of signal transduction. IFN-gamma is produced by a variety of immune cells under inflammatory conditions, notably by T cells and NK cells. It plays a key role in host defense by promoting the development and activation of Th1 cells, chemoattraction and activation of monocytes and macrophages, upregulation of antigen presentation molecules, and immunoglobulin class switching in B cells. It also exhibits antiviral, antiproliferative, and apoptotic effects. In addition, IFN-gamma functions as an anti-inflammatory mediator by promoting the development of regulatory T cells and inhibiting Th17 cell differentiation. The pleiotropic effects of IFN-gamma contribute to the development of multiple aspects of atherosclerosis.
  • Long Name:
    Interferon gamma
  • Entrez Gene IDs:
    3458 (Human); 15978 (Mouse); 25712 (Rat); 396991 (Porcine); 281237 (Bovine); 403801 (Canine); 493965 (Feline)
  • Alternate Names:
    IFG; IFI; IFNG; IFNgamma; IFN-gamma; Immune interferon; interferon gamma; interferon, gamma
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.

9 Citations: Showing 1 - 9
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Species
Applications
Sample Type
  1. Interleukin-10 and prostaglandin E2 have complementary but distinct suppressive effects on Toll-like receptor-mediated dendritic cell activation in ovarian carcinoma
    Authors: E Brencicova, AL Jagger, HG Evans, M Georgouli, A Laios, S Attard Mon, G Mehra, J Spencer, AA Ahmed, S Raju-Kanki, LS Taams, SS Diebold
    PLoS ONE, 2017;12(4):e0175712.
    Species: Human
    Sample Type: Cell Culture Supernates
    Application: ELISA detection
  2. Upregulation of human cytomegalovirus by HIV type 1 in human lymphoid tissue ex vivo.
    Authors: Biancotto A, Iglehart SJ, Lisco A, Vanpouille C, Grivel JC, Lurain NS, Reichelderfer PS, Margolis LB
    AIDS Res. Hum. Retroviruses, 2008;24(3):453-62.
    Species: Human
    Sample Type: Cell Culture Supernates
    Application: Luminex Development
  3. Fluorescence single-molecule counting assays for high-sensitivity detection of cytokines and chemokines.
    Authors: Qui H, Ferrell EP, Nolan N, Phelps BH, Tabibiazar R, Whitney DH, Naelfski EA
    Clin. Chem., 2007;53(11):2010-2.
    Species: Human
    Sample Type: Plasma
    Application: ELISA Development
  4. HIV-1 pathogenesis differs in rectosigmoid and tonsillar tissues infected ex vivo with CCR5- and CXCR4-tropic HIV-1.
    Authors: Grivel JC, Elliott J, Lisco A, Biancotto A, Condack C, Shattock RJ, McGowan I, Margolis L, Anton P
    AIDS, 2007;21(10):1263-72.
    Species: Human
    Sample Type: Cell Culture Supernates
    Application: Luminex Development
  5. Abnormal activation and cytokine spectra in lymph nodes of people chronically infected with HIV-1.
    Authors: Biancotto A, Grivel JC, Iglehart SJ, Vanpouille C, Lisco A, Sieg SF, Debernardo R, Garate K, Rodriguez B, Margolis LB, Lederman MM
    Blood, 2007;109(10):4272-9.
    Species: Human
    Sample Type: Cell Culture Supernates
    Application: Luminex Development
  6. Effect of serum content and diluent selection on assay sensitivity and signal intensity in multiplex bead-based immunoassays.
    Authors: Pfleger C, Schloot N, ter Veld F
    J. Immunol. Methods, 2007;329(1):214-8.
    Species: Human
    Sample Type: Serum
    Application: Luminex Development
  7. Increased expression of Th2-associated chemokines in bullous pemphigoid disease. Role of eosinophils in the production and release of these chemokines.
    Authors: Gounni Abdelilah S, Wellemans V, Agouli M, Guenounou M, Hamid Q, Beck LA, Lamkhioued B
    Clin. Immunol., 2006;120(2):220-31.
    Species: Human
    Sample Type: Cell Culture Supernates
    Application: ELISA Development
  8. Direct comparison of traditional ELISAs and membrane protein arrays for detection and quantification of human cytokines.
    Authors: Copeland S, Siddiqui J, Remick D
    J. Immunol. Methods, 2004;284(1):99-106.
    Species: Human
    Sample Type: Cell Culture Supernates
    Application: Array Development
  9. Fractalkine reduces N-methyl-d-aspartate-induced calcium flux and apoptosis in human neurons through extracellular signal-regulated kinase activation.
    Authors: Deiva K, Geeraerts T, Salim H, Leclerc P, Hery C, Hugel B, Freyssinet JM, Tardieu M
    Eur. J. Neurosci., 2004;20(12):3222-32.
    Species: Human
    Sample Type: Whole Cells
    Application: ICC
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