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