reported that a basal group of breast cancer patients categorized by expression of genes associated with myoepithelial cells, KRT5 (keratin 5), KRT17 (keratin 17), CNN1 (calponin 1), CAV1 (caveolin), and LAMB1 (laminin), is most aggressive with a poor DFS and OS 14. The gene discussed is KRT5; the disease is breast cancer.