IFN-γ (3F1E3) Mouse mAb #3159
- WB
- IP
Supporting Data
| REACTIVITY | H |
| SENSITIVITY | Recombinant protein |
| MW (kDa) | 17 |
| Source/Isotype | Mouse IgG1 |
Application Key:
- WB-Western Blotting
- IP-Immunoprecipitation
Species Cross-Reactivity Key:
- H-Human
Product Information
Product Usage Information
| Application | Dilution |
|---|---|
| Western Blotting | 1:1000 |
| Immunoprecipitation | 1:50 |
| Peptide ELISA (DELFIA) | 1:100 |
Storage
Protocol
Specificity / Sensitivity
IFN-γ (3F1E3) Mouse mAb detects recombinant human IFN-γ.
Species Reactivity:
Human
Source / Purification
Monoclonal antibody is produced by immunizing animals with Ni-NTA purified recombinant human IFN-γ expressed in E. Coli. Antibodies were prepared from ascites.
Background
IFN-γ plays key roles in both the innate and adaptive immune response. IFN-γ activates the cytotoxic activity of innate immune cells, such as macrophages and NK cells (1,2). IFN-γ production by NK cells and antigen presenting cells (APCs) promotes cell-mediated adaptive immunity by inducing IFN-γ production by T lymphocytes, increasing class I and class II MHC expression, and enhancing peptide antigen presentation (1). Due to differences in the degree of glycosylation, there are three forms of IFN-γ, with approximate molecular weights of 25, 20, and 15.5 kDa by SDS-PAGE (5). The anti-viral activity of IFN-γ is due to its induction of PKR and other regulatory proteins. Binding of IFN-γ to the IFNGR1/IFNGR2 complex promotes dimerization of the receptor complexes to form the (IFNGR1/IFNGR2)2 -IFN-γ dimer. Binding induces a conformational change in receptor intracellular domains and signaling involves Jak1, Jak2, and Stat1 (3). The critical role of IFN-γ in amplification of immune surveillance and function is supported by increased susceptibility to pathogen infection by IFN-γ or IFNGR knockout mice and in humans with inactivating mutations in IFNGR1 or IFNGR2. IFN-γ also appears to have a role in atherosclerosis (4).
IFN-γ, also known as type II interferon, is produced mainly in activated T lymphocytes and natural killer cells (4) and has broad effects on various cells of the immune system. Many signaling proteins including IL-2, FGF, and EGF induce the synthesis of IFN-γ.
- Schroder, K. et al. (2004) J Leukoc Biol 75, 163-89.
- Martinez, F.O. et al. (2009) Annu Rev Immunol 27, 451-83.
- Kotenko, S.V. et al. (1995) J Biol Chem 270, 20915-21.
- McLaren, J.E. and Ramji, D.P. (2009) Cytokine Growth Factor Rev 20, 125-35.
- Kelker, H.C. et al. (1984) J Biol Chem 259, 4301-4.
- Young, H.A. and Hardy, K.J. (1995) J Leukoc Biol 58, 373-81.
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