三级片视频播放,精品三级片在线观看,A级性爱视频,欧美+日韩+国产+无码+小说,亲子伦XX XX熟女,秋霞最新午夜伦伦A片黑狐,韩国理伦片漂亮的保拇,一边吃奶一边做边爱完整版,欧美放荡性护士videos

IFN-α is a cytokine that has an immunomodulatory function. It plays an important role not only in antiviral activity but also in several physiologic functions, such as activation of dendritic cells and accelerated expression of major histocompatibility complex I and II molecules that may cause increased antigen presentation. In humans, the type I IFN system consists of a family of IFN proteins encoded by at least 13 IFN alpha （IFNA） subtype genes （IFN-α1, -α2, -α4, -α5, -α6, -α7, -α8, -α10, -α13, -α14, -α16, -α17 and -α21）, and one IFN beta gene （IFNB）, one IFN-Epsilon gene, one IFN-Kappa gene, and IFN-Omega gene, all of which bind to the type I interferon receptor composed of the IFNAR1 and IFNAR2 chains.