Interferon alpha-6 (IFN- alpha6) is a secreted protein which belongs to the alpha/ beta interferon family. IFN- alpha6 is produced by macrophages, expressed at low level, only 1.0% of the average gene in this release. IFN- alpha6 contains interferon alpha, beta and delta domain. IFN- alpha has antiviral activities. Interferon stimulates the production of two enzymes: a protein kinase and an oligoadenylate synthetase.