Further, the detailed annotation of the ChIP-seq dataset was obtained by clicking on the sample ID (e.g. CR_02_1084, a sample of breast cancer cell line), and then a detailed page containing the following information was acquired: (i) a brief overview of the EZH2 ChIP-seq dataset; (ii) ChIP-seq peak annotation information, containing SNP, CRISPR, eQTL and others and (iii) genomic distribution of EZH2 ChIP-seq peaks, including the following nine regions: promoter, 5′UTR, 3′UTR, first exon, exon, first intron, intron, downstream and distal intergenic regions (Figure 3E). Here, EZH2 is linked to breast cancer.