Synonyms     Immune Interferon, type II interferon, T cell interferon, MAF, IFNG, IFG, IFI, IFN-gamma. 

Introduction     IFN-gamma produced by lymphocytes activated by specific antigens or mitogens.

IFN-gamma, in addition to having antiviral activity, has important immunoregulatory functions, it is a potent activator of macrophages, and has antiproliferative effects on transformed cells and it can potentiate the antiviral and antitumor effects of the type I interferons. 

Description     Interferon-gamma Rat Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 135 amino acids and having a molecular mass of 15609 Dalton.

The IFN-gamma is purified by proprietary chromatographic techniques. 

Source Escherichia Coli. 

Physical Appearance      Sterile Filtered White lyophilized (freeze-dried) powder. 

Formulation      Lyophilized from a 0.2μm filtered concentrated (1mg/ml) solution in PBS, pH 7.4. 

Solubility      It is recommended to reconstitute the lyophilized Interferon-gamma in sterile 18MΩ-cm H₂O not less than 100µg/ml, which can then be further diluted to other aqueous solutions. 

Stability     Lyophilized Interferon-gamma although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution IFN-gamma should be stored at 4°C between 2-7 days and for future use below -18°C.

For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).

Please prevent freeze-thaw cycles. 

Purity     Greater than 95.0% as determined by(a) Analysis by RP-HPLC.

(b) Analysis by SDS-PAGE. 

Amino acid sequence      The sequence of the first five N-terminal amino acids was determined and was found to be Met-Gln-Gly-Tyr-Leu. 

Biological Activity       The specific activity as determined by the cytopathic affect inhibition assay with murine L929 cells chalenged with EMC virus was < 0.1 ng/ml, corresponding to a specific activity of 10MU/mg. 

Usage      CHI's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.