Liquid. In PBS, 0.1% BSA. AVOID FREEZE/THAW CYCLES. Recombinant, mouse b-interferon expressed in E. coli. Antiviral, anti-neoplastic agent. Has higher anti-proliferative effects on breast cancer cells than a- and g-interferon. Expressed during the triggering stage of macrophage cytocidal activation. This recombinant protein has been modified from the native sequence to enhance stability and specific activity. NOTE: 1 MU = 1,000,000 units. Activity: ≥2 x 105 units/ml. Specific activity: ≥5 x 106 units/mg protein. One unit of interferon per ml of medium is the quantity necessary to cause 50% inhibition of EMCV-induced cytopathic effect on mouse L929 cells. Units are determined with respect to the NIH international reference standard for mouse IFN-b. Purity: ≥90% by SDS-PAGE. Note: 1 KU = 1000 units. Merck Index: 14, 4991 Ref.: Dianzani, F. 1993. Gut 34, 574. Day, C., et al. 1992. J. Interferon Res. 12 139. Higashi, Y., et al. 1983. J. Biol. Chem. 258, 9522. Familletti, P.C., et al. 1981. Methods Enzymol. 78, 387. Rubenstein, S., et al. 1981. J. Virol. 37, 755. |