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IFN gamma Mouse anti-Human, Functional Grade, Clone: NIB42, eBioscience™ Non-distribution product as customer accommodation.

Mouse Monoclonal Antibody

Manufacturer:  Invitrogen 16731881

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Catalog No. 50-147-48


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Description

Description

Description: The NIB42 antibody reacts with human interferon-gamma (IFN-gamma). The NIB42 antibody is a neutralizing antibody. IFN-gamma is an ~20 kDa factor produced by activated T, B and NK cells and is an anti-viral and anti-parasitic cytokine. IFN-gamma in synergy with other cytokines, such as TNF-alpha, inhibits proliferation of normal and transformed cells. Immunomodulatory effects of IFN-gamma are exerted on a wide range of cell types expressing the high affinity receptors for IFN-gamma. Glycosylation of IFN-gamma does not affect its biological activity. Applications Reported: The NIB42 antibody has been reported for use in neutralization of human IFN gamma and for ELISA capture. Applications Tested: The Functional Grade Purified NIB42 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 gamma bioactivity. The NIB42 antibody at 5 µg/mL has been found to inhibit by 50% the biological effects of 1 ng/mL human IFN gamma(ND50), in an EMCV assay of A549 cell protection. Detailed information and protocols about cytokine bioassays and in vitro cytokine neutralization using antibodies can be found in the BestProtocols® section. The NIB42 antibody has been tested as the capture antibody in a sandwich ELISA for analysis of human Interferon-gamma (IFN-g) in combination with the biotin 4S.

B3 (13-7319) antibody for detection and recombit human IFNg (39-8319) as the standard. A suitable range of concentrations of this antibody for ELISA capture is 2-8 µg/mL. A standard curve consisting of doubling dilutions of the recombit standard over the range of 1000 pg/mL - 8 pg/mL should be included in each ELISA plate.For ELISPOT capture, the alternative clone MD-1 is recommended. Endotoxin: Less than 0.001 ng/ug antibody as determined by the LAL assay. Storage and handling: Use in a sterile environment. Filtration: 0.2 µm post-manufacturing filtered. Purity: Greater than 90%, as determined by SDS-PAGE. Endotoxin Level: Less than 0.001 ng/µg antibody, as determined by LAL assay. Aggregation: Less than 10%, as determined by HPLC. IFN gamma (Interferon gamma, Type II interferon) is a macrophage activation factor, and immune interferon that is produced primarily by T-lymphocytes and natural killer cells in response to antigens, mitogens, Staphylococcus enterotoxin B, phytohemaglutanin and other cytokines. IFN gamma is a dimeric protein consisting of two 146 amino acid subunits. IFN gamma is a glycoprotein that exists, functionally, as a homodimer of approximately 45 kDa. On SDS-PAGE, IFN gamma appears as a combination of 25, 20 and minor 15.5 kDa bands as a result of differential glycosylation. The biological activity of the IFN gamma homodimer is highly species specific. Human IFN gamma does not show cross-reactivity with mouse. IFN gamma function includes the following: antiviral activity, tumor antiproliferative activity, induction of class I and II MHC, macrophage activation, and enhanced immunoglobulin secretion by B lymphocytes. IFN gamma is involved in cytokine regulation and also acts synergistically with other cytokines. Activation of IFN gamma takes place through binding of IFN gamma receptor I and II, and activating the JAK-STAT pathway. IFN gamma does not show any homology with IFN alpha or IFN beta but human IFN gamma shows about 40% sequence homology with mouse IFN gamma. IFN gamma is upregulated by IL2, FGF basic, EGF and downregulated by vitamin D3 or DMN. IFN gamma gene mutations are associated with aplastic anemia.
Specifications

Specifications

IFN gamma
Monoclonal
1 mg/mL
PBS with no preservative; pH 7.2
P01579
Interferon gamma
Mouse
Affinity chromatography
RUO
Antibody
Monoclonal
Human
ELISA, Functional Assay, Neutralization
NIB42
Functional Grade
IFNG
Liquid
IFNG
IgG1, kappa
50 μg
4° C
Primary
3458
SDS
Documents
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