Description: Granulocyte/macrophage colony-stimulating factors are cytokines that act in hematopoiesis by controlling the production, differentiation, and function of 2 related white cell populations of the blood, the granulocytes and the monocytes-macrophages. This CSF induces granulocytes. (www.uniprot.org) Produced in E.coli as a single, non-glycosylated, polypeptide chain containing 178 amino acids.