Our previous expression profile analysis in various cancer types using RNA-seq data from the TCGA database showed that the median level of PTK7 mRNA [Log2 (FPKM-UQ + 1) = 18.37] in BC tissues was higher than the overall mean [Log2 (FPKM-UQ + 1) = 17.92], where FPKM-UQ, as explained in the Methods, is the upper quartile of fragments per kilobase of transcript per million mapped reads [28]. This evidence concerns the gene PTK7 and breast cancer.