Up-regulator of cell proliferation, HBV X protein up-regulated gene 4 protein, HBxAg up-regulated gene 4 protein, URGCP, KIAA1507 {ECO:0000312|EMBL:BAA960311}, URG4
URG4 is upregulated in the presence of hepatitis B virus (HBV)-encoded X antigen (HBxAg) and may contribute to the development of hepatocellular carcinoma by promoting hepatocellular growth and survival.