BCAS1 and breast cancer: breast cancer 1, early onset (Breast cancer gene 1 (BRCA1)‐interacting protein 1 (BRIP1), breast carcinoma amplified sequence 1 (BCAS1), MIR663A, zinc‐finger protein 217 (ZNF217), T‐box transcription factor (TBX4), docking protein 5 (DOK5), embigin (EMB), breast carcinoma amplified sequence 3 (BCAS3), bone morphogenetic protein 7 (BMP7), vitamin D 24‐hydroxylase (CYP24A1) and Y_RNA (Figure 5A).