Fig. 2

Representative results of DNA methylation mapping for 20 liver tissues. In each panel, the horizontal axis indicates the positions of CpG sites arranged in the 5′ to 3′ direction. The 5′ regulatory region (TSS1500, TSS200, or 5′UTR) is underlined. The vertical axis indicates the β value, with the variations expressed as box-and-whisker plots. The maximum β _R value within the 5′ regulatory region is indicated by a circle for each gene. a CYP1B1, b CYP3A4, c β-actin (ACTB), and d bone morphogenetic protein 4 (BMP4)