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GADD45 promotes locus specific DNA demethylation and 2C cycling in embryonic stem cells

ABSTRACT: GADD45 promotes locus specific DNA demethylation and 2C cycling in embryonic stem cells

PROVIDER: PRJNA525097 | ENA |

REPOSITORIES: ENA

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GADD45 promotes locus specific DNA demethylation and 2C cycling in embryonic stem cells

Project description:Mouse embryonic stem cell cultures contain a rare cell population of "2C-like" cells resembling 2-cell embryos, the key stage of zygotic genome activation (ZGA). Little is known about positive regulators of the 2C-like state and 2-cell stage embryos. We found that GADD45 (growth arrest and DNA damage 45) proteins, regulators of TET mediated DNA demethylation, promote both states. This SuperSeries is composed of the SubSeries listed below.

2019-05-31 | GSE127720 | GEO

GADD45 promotes locus-specific DNA demethylation and 2C cycling in embryonic stem cells.

Project description: Not available

| S-EPMC6601511 | biostudies-literature

Gadd45a promotes DNA demethylation through TDG

Project description:Growth arrest and DNA-damage-inducible protein 45 (Gadd45) family members have been implicated in DNA demethylation in vertebrates. However, it remained unclear how they contribute to the demethylation process. Here, we demonstrate that Gadd45a promotes active DNA demethylation through thymine DNA glycosylase (TDG) which has recently been shown to excise 5-formylcytosine (5fC) and 5-carboxylcytosine (5caC) generated in Ten-eleven-translocation (Tet) -initiated oxidative demethylation. The connection of Gadd45a with oxidative demethylation is evidenced by the enhanced activation of a methylated reporter gene in HEK293T cells expressing Gadd45a in combination with catalytically active TDG and Tet. Gadd45a interacts with TDG physically and increases the removal of 5fC and 5caC from genomic and transfected plasmid DNA by TDG. Knockout of both Gadd45a and Gadd45b from mouse ES cells leads to hypermethylation of specific genomic loci most of which are also targets of TDG and show 5fC enrichment in TDG-deficient cells. These observations indicate that the demethylation effect of Gadd45a is mediated by TDG activity. This finding thus unites Gadd45a with the recently defined Tet-initiated demethylation pathway. The dataset includes RRBS anlysis of 2 WT ES cell samples and 2 Gadd45a/b DKO ES cell samples.

2015-05-07 | E-GEOD-62496 | biostudies-arrayexpress

Gadd45a promotes DNA demethylation through TDG

2015-05-07 | GSE62496 | GEO

Expression data from 2C::tomato+ vs 2C::tomato - ES cells

Project description:We compared gene expression from 2C::tomato+/- ES cells from Kdm1a wt and mutant ES cultures 2C::tomato- samples 1, 5, 9 2C::tomato+ samples 2, 6, 10 We collecteded 3 replicates of RNA from 2C::tomato+ and - ES cells

2012-06-17 | E-GEOD-33763 | biostudies-arrayexpress

Expression data from 2C::tomato+ vs 2C::tomato - ES cells

Project description:We compared gene expression from 2C::tomato+/- ES cells from Kdm1a wt and mutant ES cultures 2C::tomato- samples 1, 5, 9 2C::tomato+ samples 2, 6, 10

2012-06-18 | GSE33763 | GEO

mRNA-Seq of 2C::tomato+ vs. - ES cells

Project description:We identified/quantified genes and repeat elements enriched within 2C::tomato+ cells vs. 2C::tomato - cells 2C::tomato + and - cells were collected by FACS for RNA-Seq analysis

2012-06-18 | E-GEOD-33920 | biostudies-arrayexpress

RNA-seq of Maternal Kdm1a mutant 2C embryos

Project description:2C embryos were generated from Kdm1a FL/Fl Zp3Cre females mated to wild type males for RNA-seq analysis using the Nugen Ovation RNA-seq system V2 3 replicates of maternal Kdm1a mutant 2C embryos were collected for RNA-seq , compared to wt 2C embryos and wt oocyte samples from Macfarlan TS et al, Nature 2012 (GEO acession GSE33923)

2015-03-10 | E-GEOD-66547 | biostudies-arrayexpress

2C::tomato ES cells, 2-cell embryos and wild type oocytes

Project description:This SuperSeries is composed of the following subset Series: GSE33763: Expression data from 2C::tomato+ vs 2C::tomato - ES cells GSE33920: mRNA-Seq of 2C::tomato+ vs. - ES cells GSE33921: RNA-Seq from two-cell (2C) stage embryos GSE33922: RNA-Seq from wt oocytes GSE36896: RNA-Seq from wt and G9A knockout ES cells Refer to individual Series

2012-06-17 | E-GEOD-33923 | biostudies-arrayexpress

Gene expression changes in GADD45 deficient 2-cell mouse embryos

Project description:To study the role of GADD45 proteins in early mouse development, RNA-seq expression profiling was performed with Gadd45a/Gadd45b double knockout (DKO) and wild-type (WT) mouse embryos at 2-cell stage (2C).

2019-05-31 | GSE127719 | GEO

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