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2017 ; 8
(3
): 5629-5637
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Whole genome DNA methylation: beyond genes silencing
#MMPMID27895318
Tirado-Magallanes R
; Rebbani K
; Lim R
; Pradhan S
; Benoukraf T
Oncotarget
2017[Jan]; 8
(3
): 5629-5637
PMID27895318
show ga
The combination of DNA bisulfite treatment with high-throughput sequencing
technologies has enabled investigation of genome-wide DNA methylation at near
base pair level resolution, far beyond that of the kilobase-long canonical CpG
islands that initially revealed the biological relevance of this covalent DNA
modification. The latest high-resolution studies have revealed a role for very
punctual DNA methylation in chromatin plasticity, gene regulation and splicing.
Here, we aim to outline the major biological consequences of DNA methylation
recently discovered. We also discuss the necessity of tuning DNA methylation
resolution into an adequate scale to ease the integration of the methylome
information with other chromatin features and transcription events such as gene
expression, nucleosome positioning, transcription factors binding dynamic, gene
splicing and genomic imprinting. Finally, our review sheds light on DNA
methylation heterogeneity in cell population and the different approaches used
for its assessment, including the contribution of single cell DNA analysis
technology.