- Regulatory Status
- RUO
- Other Names
- Interferon-γ, Immune interferon, Type II interferon, T cell interferon, Macrophage-activating factor (MAF),
| Cat # | Size | Price | Quantity Check Availability | ||
|---|---|---|---|---|---|
| 570202 | 10 µg | $83.00 | |||
| 570204 | 25 µg | $147.00 | |||
| 570206 | 100 µg | $229.00 | |||
| 570208 | 500 µg | $703.00 | |||
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
- Source
- Human IFN-γ, amino acids Gln24-Gln166 (Accession # NM_000619) was expressed in E. coli.
- Molecular Mass
- The 144 amino acid N-terminal methionylated recombinant protein has a predicted molecular mass of 16,907 Da. The DTT-reduced protein and the non-reduced protein migrate at approximately 17 kDa by SDS-PAGE.
- Purity
- Purity is >95%, as determined by Coomassie stained SDS-PAGE.
- Formulation
- 0.22 µm filtered protein solution is in 10mM Sodium succinate, 4% Mannitol, pH 5.0.
- Endotoxin Level
- Endotoxin level is <0.1 EU/µg (<0.01ng/µg) protein as determined by the LAL method.
- Concentration
- 10 and 25 µg sizes are bottled at 100 µg/mL. 100 µg size and larger sizes are lot-specific and bottled at the concentration indicated on the vial. To obtain lot-specific concentration and expiration, please enter the lot number in our Certificate of Analysis online tool.
- Storage & Handling
- Unopened vial can be stored between 2°C and 8°C for up to 2 weeks, at -20°C for up to six months, or at -70°C or colder until the expiration date. For maximum results, quick spin vial prior to opening. The protein can be aliquoted and stored at -20°C or colder. Stock solutions can also be prepared at 50 - 100 µg/mL in appropriate sterile buffer, carrier protein such as 0.2 - 1% BSA or HSA can be added when preparing the stock solution. Aliquots can be stored between 2°C and 8°C for up to one week and stored at -20°C or colder for up to 3 months. Avoid repeated freeze/thaw cycles.
- Activity
- Recombinant human IFN-γ induced cytotoxic effect on HT-29 cells in a dose-dependent manner. The ED50 is 1 – 6 ng/mL.
- Application
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Bioassay
- Recommended Usage
-
Use when high specific biological activity is required.
- Application Notes
-
BioLegend carrier-free recombinant proteins provided in liquid format are shipped on blue-ice. Our comparison testing data indicates that when handled and stored as recommended, the liquid format has equal or better stability and shelf-life compared to commercially available lyophilized proteins after reconstitution. Our liquid proteins are verified in-house to maintain activity after shipping on blue ice and are backed by our 100% satisfaction guarantee. If you have any concerns, contact us at tech@biolegend.com.
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Application References
(PubMed link indicates BioLegend citation) - Product Citations
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Antigen Details
- Structure
- Cytokine; dimer
- Bioactivity
- 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
- Receptors
- IFN-γRα (CDw119) dimerized with IFN-γRβ (AF-1)
- Cell Type
- Embryonic Stem Cells
- Biology Area
- Cell Biology, Immunology, Innate Immunity, Neuroinflammation, Neuroscience, Stem Cells
- Molecular Family
- Cytokines/Chemokines
- 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. - Regulation
- 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
- UniProt
- View information about IFN-gamma on UniProt.org