Background of the antigen
EBAG9 is a type III transmembrane protein that is predominantly located in the Golgi. It induces apoptosis of natural killer (NK)/T cells and plays a role in immune invasion, possibly in relation to Epstein-Bar virus infection. EBAG9 is abundantly expressed in prostate cancer cells when compared to normal epithelial cells, and immunodetection of EBAG9 expression can be a negative prognostic indicator for patients with prostate cancer.