There are 2 GDF15 protein produced in house with high quality which are covering various species. Among these GDF15 proteins, there are 2 Human GDF15 protein. All these GDF15 protein are expressed by different host cells. 1 GDF15 proteins are expressed by Yeast , 1 GDF15 proteins are expressed by HEK293 Cells . These GDF15 proteins are produced with different tags, such as His Tag, Fc Tag.