Contents: Anti-Mouse IFN gamma Functional Grade Purified Catalog Number: 16-7312 Concentration: 1 mg/ml Formulation: Phosphate buffer pH 7.2, 150 mM NaCl, No NaN3 Storage Conditions: Store at 2-8°C. Handling Conditions: Use in sterile envrioment. Endotoxin Level: Less than 0.001 ng/ug antibody, as determined by the LAL assay. Clone: R4-6A2 Host/Isotype: Rat IgG1, κ
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16-7312-81
50 ug
16-7312-85
500 ug
Note: Several countries will continue to be supplied via distributors. Country specific prices may apply.
*Functional Grade™ (FG™) Purified: Azide-free, sterile-filtered, and endotoxin < 0.001 ng/µg (unless otherwise noted). *Functional Grade™ (FG™) Biotin: Azide-free, sterile-filtered, and endotoxin < 0.05 ng/µg. Purified: Contains azide, not sterile-filtered, and not endotoxin tested.
Flow Cytometry Product Notes: Test Sizes: To accommodate multicolor flow cytometry, eBioscience is in the process of reducing test size volumes from 20 µL to 5 µL. Please check your antibody vial for the recommended test size. Fluorochrome Replacements: eBioscience is in the process of replacing all Alexa Fluor® 647 conjugated products with eFluor® 660 conjugated products.
Description
The R4-6A2 antibody reacts with mouse interferon-γ (IFN-γ ), a homodimeric 15-20 kDa cytokine secreted by Th1 cells. The R4-6A2 antibody is a neutralizing antibody. IFN-γ is an ~20 kDa factor produced by activated T, B and NK cells and is an anti-viral and anti-parasitic cytokine. IFN-γ in synergy with other cytokines, such as TNF-α, inhibits proliferation of normal and transformed cells. Immunomodulatory effects of IFN-γ are exerted on a wide range of cell types expressing the high affinity receptors for IFN-γ. Glycosylation of IFN-γ does not affect its biological activity.
Applications Reported
For research use only, not for diagnostic or therapeutic use. The R4-6A2 antibody has been reported for use in cytokine neutralization.
Applications Tested
The Functional Grade Purified R4-6A2 antibody has been tested by LAL assay to verify low endotoxin levels and has been tested for ELISA capture and in bioassay for neutralization of IFN-γ bioactivity.
The R4-6A2 antibody has been tested as the capture antibody in a sandwich ELISA for analysis of mouse Interferon-gamma (IFN-g) in combination with the biotin XMG1.2 (13-7311) antibody for detection and recombinant mouse IFNg (39-8311) as the standard. A suitable range of concentrations of this antibody for ELISA capture is 1-4 µg/ml. A standard curve consisting of doubling dilutions of the recombinant standard over the range of 2000 pg/ml - 15 pg/ml should be included in each ELISA plate. Detailed instructions for Cytokine Sandwich ELISA Using Matched Antibody Pairs can be found in the BestProtocols section.
For ELISPOT capture, the Functional Grade Purified AN-18 antibody is recommended.
References
Spitalny, G. L. and E. A. Havell. 1984. Monoclonal antibody to murine gamma interferon inhibits lymphokine-induced antiviral and macrophage tumoricidal activities. J Exp Med. 159: 1560-5.
Abrams, J. 1995. Immunoenzymetric assay of mouse and human cytokines using NIP-labeled anti-cytokine antibodies. In Current Protocols in Immunology. A. Kruisbeek eds. Wiley-Interscience, New York. Unit 6.20.1.
Finkelman, F., S. Morris, T. Orekhova, and D. Sehy. 2003. The In Vivo Cytokine Capture Assay for measurement of cytokine production in the mouse. In Current Protocols in Immunology. Unit 6.28. J. Coligan, A. Kruisbeek, D. Margulies, E. Shevach, and W. Strober, eds. John Wiley and Sons, New York.
Finkelman, F.D., and S.C. Morris. 1999. Development of an assay to measure in vivo cytokine production in the mouse. Int. Immunology. 11: 1811-1818.
Kort JJ, Kawamura K, et al. 2006. Efficient presentation of myelin oligodendrocyte glycoprotein peptides but not protein by astrocytes from HLA-DR2 and HLA-DR4 transgenic mice. J Neuroimmunol. 173(1-2):23-34. (ELISPOT, PubMed)