We found different networks specific for each BC subtype: a network of 2 RBPs (RBM20 and PCDH20) and 2 genes (HOXB3 and RASSF7) for luminal A, a network of 21 RBPs and 53 DEGs for luminal B, a HER2-specific network of 14 RBPs and 30 DEGs, and a network of 54 RBPs and 302 DEGs for basal BC. This evidence concerns the gene ERBB2 and breast cancer.