IFN-alpha 1/13 (IFNA1), belongs to type I interferon family, is produced by macrophages with antiviral activities[1]. IFN-alpha 1 involves in the activation of JAK1 and TYK2 pathway[4], exerts function by inhibiting viral replication as well as modulating immune response[3]. IFN-alpha 1b/IFNA13 Protein, Human contains 166 a.a. (C24-D189, A137V), produced in E. coli cells with tag free.