Purity: > 90% by SDS - PAGE Format: Liquid. In Phosphate Buffered Saline (pH 7.4) containing 10% glycerol.. IL22, also known as interleukin-22, is a member of a group of cytokines involved the IL-10 family or IL-10 subfamily. This protein shares us of IL-10R2 in cell signaling with other members of this family, IL-10, IL-26, IL-28A/B and IL-29. It is produced by normal T cells upon anti-CD3 stimulation and initiates innate immune responses against bacterial pathogens especially in epithelial cells such as respiratory and gut epithelial cells. Also, it can be produced by Th17 cells and play a role in the coordinated response of both adaptive and innate immune systems. Biological activity of IL-22 is the functional receptor complex consists of two receptor subunits, IL-22R and IL-10R and is further regulated by interactions with a soluble binding protein, IL-22BP, which shares sequence similarity with an extracellular region of IL-22R1. Recombinant human IL22, fused to His-tag at C-terminus, was expressed in insect cell and purified by using conventional chromatography techniques.