Epigen, human: Epigen is an EGF-related polypeptide growth factor that signals through the ErbB receptor-1.
It is produced in several tissues, including the testis, liver, heart and in certain tumor cells. Epigen is mitogenic for fibroblasts and epithelial cells.
Human Epigen is initially synthesized as a glycosylated 14.7 kDa transmembrane precursor protein, which is processed by proteolytic cleavage to produce a mature soluble sequence., UnitProt ID: Q6UW88