- 4S.B3 (See other available formats)
- Regulatory Status
- Other Names
- Interferon-γ, Immune interferon, Type II interferon, T cell interferon, Macrophage-activating factor (MAF), IFN-g, IFN-gamma
- Mouse IgG1, κ
- Ave. Rating
- Submit a Review
- Product Citations
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Interferon-γ is a potent multifunctional cytokine which is secreted primarily by activated NK cells and T cells. Originally characterized based on anti-viral activities, IFN-γ also exerts anti-proliferative, immunoregulatory, and proinflammatory activities. IFN-γ can upregulate MHC class I and II antigen expression by antigen-presenting cells.Product Details
- Human, Cross-Reactivity: Chimpanzee, Baboon, Cynomolgus, Rhesus
- Antibody Type
- Host Species
- Partially purified, native human IFN-γ
- Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide.
- The antibody was purified by affinity chromatography, and conjugated with biotin under optimal conditions.
- 0.5 mg/ml
- Storage & Handling
- The antibody solution should be stored undiluted between 2°C and 8°C. Do not freeze.
ELISA Detection, ELISPOT Detection - Quality tested
ICFC - Reported in the literature, not verified in house
- Recommended Usage
Each lot of this antibody is quality control tested by ELISA assay. For ELISA detection applications, a concentration range of 0.5-2.0 µg/ml is recommended. To obtain a linear standard curve, serial dilutions of IFN-γ recombinant protein ranging from 1000 to 8 pg/ml are recommended for each ELISA plate. For use as an ELISPOT detection antibody, a concentration range of 1-4 µg/ml is recommended. For flow cytometric staining, the suggested use of this reagent is ≤ 0.5 µg per 106 cells in 100 µl volume. It is recommended that the reagent be titrated for optimal performance for each application.
- Application Notes
ELISA or ELISPOT Detection5: The biotinylated 4S.B3 antibody is useful as a detection antibody for a sandwich ELISA or ELISPOT assay, when used in conjunction with purified NIB42 antibody (Cat. No. 502402/502404) or purified MD-1 antibody (Cat. No. 507502/507513) as the capture antibody.
Flow Cytometry3,4,6-8: The fluorochrome-labeled 4S.B3 antibody is useful for intracellular immunofluorescent staining and flow cytometric analysis to identify IFN-? -producing cells within mixed cell populations.
Additional reported applications (for the relevant formats) include: neutralization1,2, Western blotting, immunohistochemical staining of paraformaldehyde-fixed, saponin-treated tissue sections, and immunocytochemistry. The 4S.B3 antibody can neutralize the bioactivity of natural or recombinant IFN-?.
Note: For testing human IFN-? in serum or plasma, BioLegend's ELISA Max™ Sets (Cat. No. 430101 to 430106) are specially developed and recommended.
(PubMed link indicates BioLegend citation)
- Meager A, et al. 1984. J. Interferon Res. 4:619. (Neut)
- Meager A, 1987. Lymphokines and Interferons:A Practical Approach. IRL Press Ltd, Oxford, p. 105. (Neut)
- Sester M, et al. 2002. J. Virol. 76:3748. (ICFC)
- Infante-Duarte C, et al. 2000 J. Immunol. 165:6107. (ICFC)
- Goodier M, et al. 2000. J. Immunol. 165:139. (ELISA)
- Chen H, et al. 2005. J. Immunol. 175:591. (ICFC)
- Smeltz RB, 2007. J. Immunol. 178:4786. (ICFC)
- Iwamoto S, et al. 2007. J. Immunol. 179:1449. (ICFC) PubMed
- Yoshino N, et al. 2000. Exp. Anim. (Tokyo) 49:97. (ICFC)
- Product Citations
AB_315228 (BioLegend Cat. No. 502503)
AB_315229 (BioLegend Cat. No. 502504)
- Cytokine; dimer; 20-25 kD (Mammalian)
- Antiviral/antiparasitic activities; inhibits proliferation; enhances MHC class I and II expression on APC
- Cell Sources
- CD8+ and CD4+ T cells, NK cells
- Cell Targets
- T cells, B cells, macrophages, NK cells, endothelial cells, fibroblasts
- IFN-γRα (CDw119) dimerized with IFN-γRβ (AF-1)
- Cell Type
- Biology Area
- Cell Biology, Immunology, Neuroinflammation, Neuroscience
- Molecular Family
- Antigen References
1. Fitzgerald K, et al. Eds. 2001. The Cytokine FactsBook. Academic Press, San Diego.
2. De Maeyer E, et al. 1992. Curr. Opin. Immunol. 4:321.
3. Farrar M, et al. 1993. Annu. Rev. Immunol. 11:571.
4. Gray P, et al. 1987. Lymphokines 13:151.
- Upregulated by IL-2, FGF-basic, EGF; downregulated by vitamin D3 or DMN; labile at pH2
- Gene ID
- 3458 View all products for this Gene ID
- View information about IFN-gamma on UniProt.org
- How many biotin molecules are per antibody structure?
- We don't routinely measure the number of biotins with our antibody products but the number of biotin molecules range from 3-6 molecules per antibody.
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