Interferon (IFN) is a kind of protein with antiviral activity, regulating cell differentiation and growth, and immune function. IFN-α belongs to type I of interferon, it is a kind of glycoprotein which produced by white blood cells by specific antigen stimulation. IFN-α4 is a subtype of IFN-α, which has antiviral, anti-proliferation activity, immune regulation, inhibition of killing tumor cells and other functions. It has high value in experimental research and clinical application. 仅供实验室使用。