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  • Title: Studies on Brucella interferon: chromatographic behaviour and purification.
    Author: Bousquet-Ucla C, Wietzerbin J, Falcoff E.
    Journal: Arch Virol; 1980; 63(1):57-68. PubMed ID: 6154449.
    Abstract:
    Interferon was induced by infecting mice with Brucella suis. Serum containing interferon activity was analyzed by chromatography on Concanavalian A-Sepharose and Phenyl-Sepharose CL-4B columns. Antiviral activity was completely retained by the lectin column indicating that all the interferon molecules are glycosylated. The chromatographic behaviour of Brucella interferon on Phenyl-Sepharose CL-4B shows that, like other interferons, Brucella displays hydrophobic properties. However, the hydrophobicity of the interferon molecule was masked in the crude preparation and was only detectable when purified Brucella interferon was used for chromatography. The antigenic properties of Brucella interferon provided the means for developing an affinity chromatographic method resulting in about 60,000 fold purification. As in the case of viral interferon, treatment of L cells with Brucella interferon induced specific enhanced in vitro phosphorylation of a 67,000 molecular weight protein after incubation of cell extracts with double-stranded RNA and [gamma-32P] ATP.
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