Applying ngs.plot to the study of epigenomic regulation of PT and nPT promoters in mESCs. The log2 enrichment ratios of several histone marks and transcription factors vs. DNA input at TSS ± 3 Kb regions. The TSSs are ranked by CGPs in descending order (using algorithm “none”). Gene expression levels are illustrated by RNA-seq enrichment in the same order (using RNA-seq mode), including 3 Kb flanking regions. The upper panel represents PT promoters and the lower panel represents nPT promoters. They are resized to have the same height.