Regulated upon activation normal T cell expressed and presumably secreted (RANTES), monocyte chemotactic protein (MCP)1, phosphatase and tensin homolog (PTEN), amplified in breast cancer (AIB1), HER3, HER4, breast cancer gene (BRCA)1, vascular endothelial growth factor (VEGF) and e-cadherin appeared in two studies. The gene discussed is ERBB4; the disease is breast cancer.