A dotplot representing differences in expression of KRT13 in FC (pooled fractions, n = 6), as well as in each individual adult prostate cell fraction analyzed by microarray (7 TIC, 7 BC, and 4 LC) was compared to the expression of basal KRT5 and luminal KRT8 in order to highlight differences based upon antigenic profile (Fig 1A). The gene discussed is KRT8; the disease is breast cancer.