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form
liquid
Quality Level
manufacturer/tradename
Calbiochem®
storage condition
OK to freeze
avoid repeated freeze/thaw cycles
shipped in
wet ice
storage temp.
−20°C
General description
Recombinant, human γ-interferon expressed in E. coli. A multi-functional protein consisting of 144 amino acids. Exhibits antiviral and antitumor properties. Regulates the development of specific immune responses. Expressed in and purified from E. coli.
Recombinant, human γ-interferon expressed in E. coli. A multi-functional protein consisting of 144 amino acids. Exhibits antiviral and antitumor properties. Regulates the development of specific immune responses.
Biochem/physiol Actions
ED₅₀ = 0.5-3.0 ng/ml as measured by inhibition (cytostasis) of human WiDr cells.
Packaging
Please refer to vial label for lot-specific concentration.
Warning
Toxicity: Standard Handling (A)
Physical form
Sterile-filtered (0.22 µm) in 40 mM Tris-HCl, pH 7.4, carrier-free.
Reconstitution
Following initial thaw, aliquot and freeze (-20°C). Do not store in glass vials without addition of carrier protein. Further dilute in low endotoxin medium or buffer containing FBS or tissue culture grade BSA.
Other Notes
Kohji, K., et al. 1994. J. Int. J. Cancer 58, 380.
Kolb, J.P., et al. 1994. J. Biol. Chem.269, 9811.
Müller, U., et al. 1994. Science264, 1918.
Zahedi, K., et al. 1994. J. Biol. Chem.269, 9669.
Shuai, K., et al. 1993. Science261, 1744.
Wilson, K.C., and Finbloom, D.S. 1992. Proc. Natl. Acad. Sci. USA89, 11964.
Meager, A. 1987. Lymphokines and Interferons, A Practical Approach (Clemens, M.J., et al., eds.) p. 129, IRL Press, Oxford.
Kolb, J.P., et al. 1994. J. Biol. Chem.269, 9811.
Müller, U., et al. 1994. Science264, 1918.
Zahedi, K., et al. 1994. J. Biol. Chem.269, 9669.
Shuai, K., et al. 1993. Science261, 1744.
Wilson, K.C., and Finbloom, D.S. 1992. Proc. Natl. Acad. Sci. USA89, 11964.
Meager, A. 1987. Lymphokines and Interferons, A Practical Approach (Clemens, M.J., et al., eds.) p. 129, IRL Press, Oxford.
Legal Information
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
Storage Class Code
10 - Combustible liquids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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Johnathan Ho et al.
PLoS biology, 14(10), e2000117-e2000117 (2016-10-26)
STAT2 is the quintessential transcription factor for type 1 interferons (IFNs), where it functions as a heterodimer with STAT1. However, the human and murine STAT2-deficient phenotypes suggest important additional and currently unidentified type 1 IFN-independent activities. Here, we show that
Christin Pelzel et al.
Molecular cell, 50(1), 149-156 (2013-04-16)
Signal transducer and activator of transcription 1 (STAT1) is activated by tyrosine phosphorylation upon interferon-γ (IFNγ) stimulation, which results in the expression of genes with antiproliferative and immunomodulatory functions. The inactivation of STAT1 occurs through tyrosine dephosphorylation by the tyrosine
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