Whole-genome bisulphite sequencing data from diverse human cell and tissue types shows that only about 22% of CpGs change their methylation state across these cell types; most of these CpGs are located at gene regulatory elements, particularly enhancers and transcription-factor-binding sites, and these selected regions with dynamic DNA methylation patterns could help to define putative regulatory elements further.
- Michael J. Ziller
- Hongcang Gu
- Alexander Meissner