There are 4 MMP-9 protein produced in house with high quality which are covering various species. Among these MMP-9 proteins, there are 2 Human MMP-9 protein, 1 Rat MMP-9 protein, 1 Mouse MMP-9 protein. All these MMP-9 protein are expressed by different host cells. 4 MMP-9 proteins are expressed by HEK293 Cells . These MMP-9 proteins are produced with different tags, such as His Tag.