There are 5 HIV gp140 protein produced in house with high quality which are covering various species. Among these HIV gp140 proteins, there are 5 HIV HIV gp140 protein. All these HIV gp140 protein are expressed by different host cells. 5 HIV gp140 proteins are expressed by HEK293 Cells . These HIV gp140 proteins are produced with different tags, such as His Tag, hFc Tag.