There are 9 CD28 protein produced in house with high quality which are covering various species. Among these CD28 proteins, there are 3 Mouse CD28 protein, 2 Rat CD28 protein, 3 Human CD28 protein, 1 Cynomolgus CD28 protein. All these CD28 protein are expressed by different host cells. 9 CD28 proteins are expressed by HEK293 Cells . These CD28 proteins are produced with different tags, such as His Tag, Fc Tag, His & Fc Tag, Fc & AVI Tag.