Among these are five mRNA candidates: CCND1 (encoding for cyclin D1), EGFR (encoding for epidermal growth factor receptor), FGF19 (encoding for fibroblast growth factor 19), FRS2 (encoding for fibroblast growth factor receptor substrate 2), and GREB1 (growth regulation by estrogen in breast cancer 1). The gene discussed is FGF19; the disease is breast cancer.