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IFN gamma Mouse anti-Human, Clone: 4S.B3, eBioscience™

Mouse Monoclonal Antibody

Manufacturer:  Invitrogen 14731985

Encompass

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Catalog No. 50-136-87


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Description

Description

Description: The 4S.B3 monoclonal antibody reacts with interferon-gamma (IFN gamma). Human IFN gamma is a 17 kDa factor produced by activated T 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: Unlabeled 4S.B3 has been reported for use as a cold mAb control to block fluorochrome conjugated 4S.B3 in staining of intracellular IFN gamma. Applications Tested: The 4S.B3 antibody has been tested as a cold mAb control to block fluorochrome conjugated 4S.B3 in staining of intracellular IFN gamma. It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest. Purity: Greater than 90%, as determined by SDS-PAGE. Aggregation: Less than 10%, as determined by HPLC. Filtration: 0.2 μm post-manufacturing filtered.

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
0.5 mg/mL
PBS with 0.09% sodium azide; pH 7.2
P01579
IFNG
Affinity chromatography
RUO
3458
4° C
Liquid
Flow Cytometry
4S.B3
Unconjugated
IFNG
Interferon gamma
Mouse
500 μg
Primary
Human
Antibody
IgG1 κ
SDS
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