Merck
All Photos(1)

407320

Sigma-Aldrich

γ-Interferon, Mouse, Recombinant, E. coli

Synonym(s):
Interferon γ precursor, IFN-γ, rmIFN-γ

Quality Level

assay

≥95% (RP-HPLC, FPLC, and SDS-PAGE)

form

lyophilized

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
desiccated

shipped in

wet ice

storage temp.

−20°C

General description

Recombinant, mouse γ-interferon (γ-IFN) expressed in E. coli as a single, non-glycosylated polypeptide containing 134 amino acids. Purified by chromatographic methods. IFN-γ is a type II cytokine produced by activated T cells and natural killer cells. It plays a significant role immunoregulation and has been implicated in the induction of the expression of class II histocompatibility molecules in cells that do not normally express them, resulting in autoimmune disease.
Recombinant, mouse γ-interferon (γ-IFN) expressed in E. coli as a single, non-glycosylated polypeptide containing 134 amino acids. Purified by chromatographic methods. IFN-γ is a type II cytokine produced by activated T cells and natural killer cells. It plays a significant role immunoregulation and has been implicated in the induction of the expression of class II histocompatibility molecules in cells that do not normally express them, resulting in autoimmune disease.

Packaging

100 μg in Plastic ampoule

Biochem/physiol Actions

Reported as IU/mg on a lot-specific basis using a cytopathic effect inhibition assay.

Warning

Toxicity: Standard Handling (A)

Physical form

Lyophilized from 0.5X PBS, pH 7.2.

Reconstitution

Following reconstitution, refrigerate (4°C) for short-term storage or aliquot and freeze (-20°C) for long-term storage. Stock solutions are stable for 2-7 days at 4°C or for up to 4 months at -20°C. Avoid freeze/thaw cycles of solutions.
Reconstitute with sterile water to ≥100 µg/ml, containing 0.1% HSA or BSA. Further dilute with aqueous buffers just prior to use.

Other Notes

Alvarado, J., et al. 2005. Immunol. Lett.99, 109.
Di Rosa, M., et al. 2005. Clin. Chem. Lab. Med.43, 499.
Malaguarnera, L., et al. 2005. J. Clin. Lab. Anal.19, 128.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Quality

Enter Lot Number to search for Certificate of Quality (COQ).

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

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