TF and cancer: In the ‘Search’ page, users can get chromatin accessibility data through four strategies, including ‘Search accessible regions by cancer type’ (input cancer type), ‘Search accessible regions by gene’ (input gene of interest, cancer type and strategies), ‘Search accessible regions by TF’ (input TF name of interest and cancer type) and ‘Search chromatin accessibility region by genomic scope’ (input cancer type and genomic position) (Figure 3C).