ESR1 and neoplasm: As part of the Washington University Human Tumor Atlas Network (WU-HTAN) program, we generated multi-omic data for 70 samples from 38 ER+PR−HER2−, ER+PR+HER2−, HER2+ and triple-negative BC (TNBC) tumors, 4 normal adjacent tissues and 1 metastatic liver sample.