There are 4 G-CSF protein produced in house with high quality which are covering various species. Among these G-CSF proteins, there are 4 Human G-CSF protein. All these G-CSF protein are expressed by different host cells. 3 G-CSF proteins are expressed by HEK293 Cells , 1 G-CSF proteins are expressed by E. coli . These G-CSF proteins are produced with different tags, such as Fc Tag.