There are 21 CD40 protein produced in house with high quality which are covering various species. Among these CD40 proteins, there are 8 Human CD40 protein, 5 Mouse CD40 protein, 4 Canine CD40 protein, 2 Rat CD40 protein, 2 Rhesus CD40 protein. All these CD40 protein are expressed by different host cells. 19 CD40 proteins are expressed by HEK293 Cells , 2 CD40 proteins are expressed by Yeast . These CD40 proteins are produced with different tags, such as His Tag, His & AVI Tag, hFc Tag, His & hFc Tag, mFc Tag, rFc Tag, hFc & AVI Tag.