NCIt definition : Transforming growth factor alpha (50 aa, 6 kDa) is encoded by the human TGFA gene.
This protein is involved in both epidermal growth factor receptor signaling and the
positive regulation of cell proliferation.;
NCIt note : In esophageal adenocarcinoma patients who received high-dose radiation and chemotherapy,
tumors that either persistently expressed or had increased TGFA expression was associated
with a worse prognosis. (Int J Radiat Oncol Biol Phys. 1995; 31:567-9.); The active form of the growth factor, transforming growth factor alpha, is produced
when proteolytic cleavage removes 39 amino acids from the N-terminus and 71 amino
acids from the C-terminus of protransforming growth factor alpha. The precursor is
a transmembrane protein and the mature form is a secreted protein. (UniProt);