Recombinant human EGF is a 60KDa globular protein containing 53 amino acid residues including 3 intra molecular disulphide bonds. CF022 is known to stimulate proliferation of various epidermal and epithelial cells. EGF is a potent growth factor that stimulates the proliferation of various epidermal and epithelial cells. Additionally EGF has been shown to inhibit gastric secretion and to be involved in wound healing. EGF signals through a receptor known as cerbB, which is a class I tyrosine kinase receptor. This receptor also binds with TGF- and VGF (Vaccinia virus growth factor).