Source: E.coli. MW :14.2kD. Recombinant Mouse Granulocyte-Macrophage Colony-Stimulating Factor is produced by our E.coli expression system and the target gene encoding Ala18-Lys141 is expressed. Granulocyte-macrophage colony-stimulating factor is an enzyme that in mouse is encoded by the Csf2 gene, belongs to the GM-CSF family.CSF2 is a Cytokine that stimulates the growth and differentiation of hematopoietic precursor cells from various lineages, including granulocytes, macrophages, eosinophils and erythrocytes