Percentages of signal overlap at promoters between 3450 and 2630 O-GlcNAc peaks (before and after Dox treatment, replicate 1) and 2834 ChIP-Atlas datasets in human DLD-1 cells. Proteins previously described to be O-GlcNAcylated are indicated in green. The highest overlap is found with RNA Pol II ChIP-seq GSM5237208. The overlap percentages before and after Dox treatment respectively are RNA Pol II (70/83%), NELFCD (56/39%), SUPT5H (62/55%), NCBP1 (22%), NELFE (40/70%), and INTS3 (12/76%).