There are 2 IRE1 protein produced in house with high quality which are covering various species. Among these IRE1 proteins, there are 2 Human IRE1 protein. All these IRE1 protein are expressed by different host cells. 2 IRE1 proteins are expressed by Baculovirus-Insect Cells . These IRE1 proteins are produced with different tags, such as His & GST Tag.