There are 4 IL-18 protein produced in house with high quality which are covering various species. Among these IL-18 proteins, there are 1 Rhesus IL-18 protein, 2 Human IL-18 protein, 1 Mouse IL-18 protein. All these IL-18 protein are expressed by different host cells. 4 IL-18 proteins are expressed by E. coli . These IL-18 proteins are produced with different tags, such as His Tag, GST Tag.