- NIB42 (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
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- 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. The 4S.B3 antibody reacts with the human IFN-γ. The NIB42 antibody can neutralize the bioactivity of natural or recombinant IFN-γ.Product Details
- Antibody Type
- Host Species
- E. coli - expressed, recombinant human IFN-γ
- 0.2 µm filtered in phosphate-buffered solution, pH 7.2, containing no preservative. Endotoxin level is <0.01 EU/µg of the protein (<0.001 ng/µg of the protein) as determined by the LAL test.
- The Ultra-LEAF™ (Low Endotoxin, Azide-Free) antibody was purified by affinity chromatography.
- The antibody is bottled at the concentration indicated on the vial, typically between 2 mg/mL and 3 mg/mL. Older lots may have also been bottled at 1 mg/mL. Please contact technical support for concentration and total µg amount, or use our Lookup tool if you have a lot number.
- Storage & Handling
- The antibody solution should be stored undiluted between 2°C and 8°C. This Ultra-LEAF™ solution contains no preservative; handle under aseptic conditions.
ELISA Capture - Quality tested
ELISPOT Capture, Neut - Reported in the literature, not verified in house
- Recommended Usage
Each lot of this antibody is quality control tested by ELISA assay. For ELISA capture applications, a concentration range of 1.0 - 4.0 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. It is recommended that the reagent be titrated for optimal performance for each application.
- Application Notes
ELISA or ELISPOT Capture2: The purified NIB42 antibody is useful as the capture antibody in a sandwich ELISA, when used in conjunction with the biotinylated 4S.B3 antibody (Cat. No. 502504/502514) as the detecting antibody. The Ultra-LEAF™ purified antibody is suggested for ELISPOT capture. For ELISPOT capture applications, a concentration range of 0.5 - 2.0 µg/ml is recommended.
Neutralization1: The Ultra-LEAF™ purified antibody (Endotoxin <0.1 EU/µg, Azide-Free, 0.2 µm filtered) is recommended for neutralization of human IFN-? bioactivity (Cat. No. 502405 & 502406).
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. 1987. Lymphokines and Interferons:A Practical Approach. IRL Press Ltd, Oxford, p. 105.
- Goodier M, et al. 2000. J. Immunol. 165:139.
- Blank N, et al. 2007. J. Immunol. 179:3613. (Neut)
AB_2814395 (BioLegend Cat. No. 502405)
AB_2814396 (BioLegend Cat. No. 502406)
- 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
- Do you guarantee that your antibodies are totally pathogen free?
BioLegend does not test for pathogens in-house aside from the GoInVivo™ product line. However, upon request, this can be tested on a custom basis with an outside, independent laboratory.
- Does BioLegend test each Ultra-LEAF™ antibody by functional assay?
No, BioLegend does not test Ultra-LEAF™ antibodies by functional assays unless otherwise indicated. Due to the possible complexities and variations of uses of biofunctional antibodies in different assays and because of the large product portfolio, BioLegend does not currently perform functional assays as a routine QC for the antibodies. However, we do provide references in which the antibodies were used for functional assays and we do perform QC to verify the specificity and quality of the antibody based on our strict specification criteria.
- Does BioLegend test each Ultra-LEAF™ antibody for potential pathogens?
No, BioLegend does not test for pathogens in-house unless otherwise indicated. However, we can recommend an outside vendor to perform this testing as needed.
- Have you tested this Ultra-LEAF™ antibody for in vivo or in vitro applications?
We don't test our antibodies for in vivo or in vitro applications unless otherwise indicated. Depending on the product, the TDS may describe literature supporting usage of a particular product for bioassay. It may be best to further consult the literature to find clone specific information.
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