Biolegend, 502515, Alexa Fluor® 488 anti-human IFN-γ Antibody, 100tests

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.
100tests
Verified Reactivity: Human
Reported Reactivity: Chimpanzee, Baboon, Cynomolgus, Rhesus
Antibody Type: Monoclonal
Host Species: Mouse
Immunogen: Partially purified, native human IFN-γ
Formulation: Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide and BSA (origin USA)
Preparation: The antibody was purified by affinity chromatography and conjugated with Alexa Fluor® 488 under optimal conditions.
Concentration: Lot-specific (to obtain lot-specific concentration and expiration, please enter the lot number in our Certificate of Analysis online tool.)
Storage & Handling: The antibody solution should be stored undiluted between 2°C and 8°C, and protected from prolonged exposure to light. Do not freeze.
Application: ICFC - Quality tested
Recommended Usage: Each lot of this antibody is quality control tested by intracellular immunofluorescent staining with flow cytometric analysis. For flow cytometric staining, the suggested use of this reagent is 5 µl per 106 cells in 100 µl volume. It is recommended that the reagent be titrated for optimal performance for each application.* Alexa Fluor® 488 has a maximum emission of 519 nm when it is excited at 488 nm.Alexa Fluor® and Pacific Blue™ are trademarks of Life Technologies Corporation.View full statement regarding label licenses
Excitation Laser: Blue Laser (488 nm)
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-γ -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-γ.Note: For testing human IFN-γ in serum or plasma, BioLegend's ELISA Max™ Sets (Cat. No. 430101 to 430106) are specially developed and recommended.
Application References(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: Apostolidis SA, et al. 2021. Nat Med. 27:1990. PubMed Meng S, et al. 2018. Mol Med Rep. 18:4247. PubMed Zhou X, et al. 2021. J Clin Transl Hepatol. 9:283. PubMed Lin JR et al. 2018. eLife. 7 pii: e31657. PubMed Wilson AS, et al. 2022. Nat Commun. 13:528. PubMed Baleeiro RB, et al. 2022. Oncoimmunology. 11:2080329. PubMed Bartolomé-Casado R, et al. 2020. Mucosal Immunol. 14:402. PubMed Painter MM, et al. 2021. Immunity. 54:2133. PubMed Hubrack S, et al. 2021. Sci Rep. 11:14090. PubMed Hubbard JM, et al. 2022. Clin Cancer Res. 28:2818. PubMed Huang RS, et al. 2021. Curr Protoc. 1:e246. PubMed Xu X, et al. 2020. Arthritis Rheumatol. 72:1303. PubMed Martínez-Fábregas J, et al. 2020. Cell Rep. 33:108545. PubMed Lederer K, et al. 2022. Cell. . PubMed Smith KJ, et al. 2022. PLoS Biol. 20:e3001554. PubMed Hirota K et al. 2018. Immunity. 48(6):1220-1232 . PubMed Wang S, et al. 2021. Oncol Rep. 1.91666666666667. PubMed Jin J, et al. 2014. PLoS One. 9:104753. PubMed Högelin KA, et al. 2021. iScience. 24:103078. PubMed
RRID: AB_493030 (BioLegend Cat. No. 502517) AB_493029 (BioLegend Cat. No. 502515)
Structure: Cytokine; dimer; 20-25 kD (Mammalian)
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: Tregs
Biology Area: Cell Biology, Immunology, Neuroinflammation, Neuroscience
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
UniProt: View information about IFN-gamma on UniProt.org
Clone: 4S.B3
Regulatory Status: RUO
Other Names: Interferon-γ, Immune interferon, Type II interferon, T cell interferon, Macrophage-activating factor (MAF), IFN-g, IFN-gamma
Isotype: Mouse IgG1, κ