To further characterize the correlation between B3GNT5 expression and basal subtype, we analyzed B3GNT5 mRNA expression in other five gene expression datasets, CCLE, E-TAMB-181, GSE10890, GSE16732, GSE12777, containing 48, 56, 52, 41 and 51 breast cancer cell lines, respectively [27–30]. This evidence concerns the gene B3GNT5 and breast cancer.