ED50?is < 0.1 ng/mL, measured by a cell proliferation assay using murine BALB/c 3T3 cells, corresponding to a specific activity of > 1.0 x 107 units/mg.
Storage Buffer:
Lyophilized from sterile distilled Water up to 100 ug/ml
Storage Instruction:
Store at 2°C to 8°C for 1 week. For long term storage, aliquot and store at -20°C to -80°C. Aliquot to avoid repeated freezing and thawing.
Epidermal growth factor has a profound effect on the differentiation of specific cells in vivo and is a potent mitogenic factor for a variety of cultured cells of both ectodermal and mesodermal origin. The EGF precursor is believed to exist as a membrane-bound molecule which is proteolytically cleaved to generate the 53-amino acid peptide hormone that stimulates cells to divide. [provided by RefSeq