ESR1 and breast cancer: These include RELA (p65) ChIP−PET binding sites in human monocytes (39) (489 records covering 52 886 bp), ESR1 binding sites in human MCF-7 breast cancer cells (40) (1234 records covering 165 538 bp), Esr1 binding sites in mouse liver (41) (5568 records covering 2 378 460 bp), and Foxa2 binding sites in mouse liver (7) (11 475 records covering 8 236 933 bp).