a, Venn diagram showing the uniquely bound and overlapping RAD21 binding sites identified by ChIP-seq in a second WAPL-AID clone. Peak calling was performed on a subset of 7 M sequencing reads for both of the samples. b, Scatter plot showing the Pearson correlation of RAD21 ChIP-seq data between the two different WAPL-AID clones. Red rectangle highlighting the correlation of the same time points. c, Alignment of RAD21 binding data from a second WAPL-AID clone on the RDCs and RSCs identified in the original WAPL-AID clone. d, Alignment of published ChIP-seq data for five different cohesin subunits generated in V6.5 mESC line (see Supplementary Table 2 for details). e, Example locus showing a region with an RDC and RSC. RAD21 binding is shown for treated and untreated cell for two WAPL-AID clones. Cohesin binding is shown for the five subunits shown in (d). f, Table containing the top 5 (by lowest FDR) categories in a GREAT analysis using the Mouse Genome Informatics (MGI) expression database for RDCs and RSCs.