There are 3 S100A9 protein produced in house with high quality which are covering various species. Among these S100A9 proteins, there are 1 Mouse S100A9 protein, 2 Human S100A9 protein. All these S100A9 protein are expressed by different host cells. 2 S100A9 proteins are expressed by E. coli , 1 S100A9 proteins are expressed by Baculovirus-Insect Cells . These S100A9 proteins are produced with different tags, such as His Tag.