There are 2 HHLA2 protein produced in house with high quality which are covering various species. Among these HHLA2 proteins, there are 2 Human HHLA2 protein. All these HHLA2 protein are expressed by different host cells. 2 HHLA2 proteins are expressed by HEK293 Cells . These HHLA2 proteins are produced with different tags, such as His Tag, Fc Tag.