Hu Recom Prolactin, 10 µg

From STEMCELL Technologies, this human recombinant growth factor is involved in regulating mammary gland development and immune system function, and has an essential role in metabolism and behavioral modification. Biological activity was assessed by the ability to promote proliferation of NB2-11 cells, with cell proliferation measured after 66 hours using a fluorometric assay method. The EC50, defined as the effective concentration of the growth factor at which cell proliferation reaches 50% of maximum, was determined to be less than 0.02 ng/mL. SDS-PAGE analysis under reducing and non-reducing conditions, visualized by Coomassie Blue staining, shows a predicted molecular mass of 23 kDa.