Bar plots of the average methylation level for each CpG site per sample group. The average DNA methylation level determined for the APL, remission (R), control (C), and AML sample groups is represented by blue columns. A black horizontal line indicates the 50% level of methylation. Amplicon names are indicated underneath the bar plots. Sample groups are labeled on the left of each panel. CpG islands and CTCF binding sites are indicated with green and red bars, respectively.