SLC5A5 and invasive breast carcinoma: In the Breast Invasive Carcinoma (TCGA, Firehose Legacy) dataset, the TNBC subgroup comprised n = 69 samples, among which only 1 case exhibited a FOXA1 mutation (with no available mRNA expression data for NIS/SLC5A5), while the remaining samples were FOXA1 wild-type.