Unknown,Transcriptomics,Genomics,Proteomics

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Genome-wide DNA methylation analyses by the MeDIP assay


ABSTRACT: We analyzed the genome-wide DNA methylation in Zscan4 overexpressing ES cells. Zscan4 overexpression induced slight DNA demethylation in telomere and major satellite regions. Subsequent genome-wide analysis of non-repeated regions revealed the significant reduction of DNA methylation at Zscan4-dependent hyperacetylation sites. This result indicates that Zscan4 is not only a marker of the Zscan4+ state of ES cells, but also indispensable for the dramatic epigenetic modifications occurring in the Zscan4+ state. DNA methylation in Zscan4 overexresssing ES cells

ORGANISM(S): Mus musculus

SUBMITTER: Minoru Ko 

PROVIDER: E-GEOD-58618 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Transient bursts of Zscan4 expression are accompanied by the rapid derepression of heterochromatin in mouse embryonic stem cells.

Akiyama Tomohiko T   Xin Li L   Oda Mayumi M   Sharov Alexei A AA   Amano Misa M   Piao Yulan Y   Cadet J Scotty JS   Dudekula Dawood B DB   Qian Yong Y   Wang Weidong W   Ko Shigeru B H SB   Ko Minoru S H MS  

DNA research : an international journal for rapid publication of reports on genes and genomes 20150831 5


Mouse embryonic stem cells (mESCs) have a remarkable capacity to maintain normal genome stability and karyotype in culture. We previously showed that infrequent bursts of Zscan4 expression (Z4 events) are important for the maintenance of telomere length and genome stability in mESCs. However, the molecular details of Z4 events remain unclear. Here we show that Z4 events involve unexpected transcriptional derepression in heterochromatin regions that usually remain silent. During a Z4 event, we se  ...[more]

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