Identification of a position effect on DNA methylation in transposable elements located close to gene promoters. The distance from RefSeq gene transcription start sites and DNA methylation status are shown. The x-axis displays the distance from transcription start sites (TSSs). HpaII sites were categorized into three groups by angle, 0 to 30 (blue), 31 to 60 (red) and 61 to 90 (green). (a) Number of HpaII sites; (b) proportions of each angle category (%).
Suzuki et al. Genome Biology 2010 11:R36 doi:10.1186/gb-2010-11-4-r36