Tags: Protein.
Trophoblast glycoprotein also known as TPBG or 5T4 is a human gene.5T4 is an antigen expressed in a number of carcinomas. It is an N-glycosylated transmembrane 72 kDa glycoprotein containing seven leucine-rich repeat regions. 5T4 is often referred to as an oncofetal antigen due to its expression in foetal trophoblast (where it was first discovered) or trophoblast glycoprotein (TPBG).5T4 is found in tumors including the colorectal ovarian and gastric.