Results 21 to 30 of about 60,468 (238)

An AP endonuclease functions in active DNA demethylation and gene imprinting in Arabidopsis [corrected]. [PDF]

open access: yesPLoS Genetics, 2015
Active DNA demethylation in plants occurs through base excision repair, beginning with removal of methylated cytosine by the ROS1/DME subfamily of 5-methylcytosine DNA glycosylases.
Yan Li   +8 more
doaj   +1 more source

DNA Methylation and Demethylation in Arabidopsis [PDF]

open access: yesThe Arabidopsis Book, 2008
Writing about a biological subject based on one species can limit the scope of the discussion, but in the case of DNA methylation and Arabidopsis, the restriction is entirely appropriate. Unlike many other popular model organisms, Arabidopsis has retained and embellished a multi-layered methylation system that contributes to gene and transposon ...
Mary, Gehring, Steven, Henikoff
openaire   +2 more sources

DNA Methylation and Demethylation in Mammals [PDF]

open access: yesJournal of Biological Chemistry, 2011
Cell type-specific DNA methylation patterns are established during mammalian development and maintained in adult somatic cells. Understanding how these patterns of 5-methylcytosine are established and maintained requires the elucidation of mechanisms for both DNA methylation and demethylation.
Chen, Zhao-xia, Riggs, Arthur D.
openaire   +2 more sources

RUNX1 regulates site specificity of DNA demethylation by recruitment of DNA demethylation machineries in hematopoietic cells

open access: yesBlood Advances, 2017
: RUNX1 is an essential master transcription factor in hematopoietic development and plays important roles in immune functions. Although the gene regulatory mechanism of RUNX1 has been characterized extensively, the epigenetic role of RUNX1 remains ...
Takahiro Suzuki   +8 more
doaj   +1 more source

Rad50 mediates DNA demethylation to establish pluripotent reprogramming

open access: yesExperimental and Molecular Medicine, 2020
Regenerative medicine: Protein boosts stem cell generation process Heightened expression of a DNA repair protein improves efficiency when generating induced pluripotent stem cells (iPSCs) for use in regenerative medicine.
Hanseul Park   +2 more
doaj   +1 more source

Male fertility in Arabidopsis requires active DNA demethylation of genes that control pollen tube function

open access: yesNature Communications, 2021
Active DNA demethylation is required for sexual reproduction in plants, but the underlying mechanisms are unknown. Here, the authors show that the DNA glycosylases DEMETER and REPRESSOR OF SILENCING 1 enable the DNA demethylation-dependent activation of ...
Souraya Khouider   +7 more
doaj   +1 more source

GADD45A does not promote DNA demethylation.

open access: yesPLoS Genetics, 2008
Although DNA methylation patterns in somatic cells are thought to be relatively stable, they undergo dramatic changes during embryonic development, gametogenesis, and during malignant transformation.
Seung-Gi Jin, Cai Guo, Gerd P Pfeifer
doaj   +1 more source

Gemcitabine functions epigenetically by inhibiting repair mediated DNA demethylation.

open access: yesPLoS ONE, 2010
Gemcitabine is a cytotoxic cytidine analog, which is widely used in anti-cancer therapy. One mechanism by which gemcitabine acts is by inhibiting nucleotide excision repair (NER).
Andrea Schäfer   +4 more
doaj   +1 more source

Methylation-sensitive expression of a DNA demethylase gene serves as an epigenetic rheostat. [PDF]

open access: yesPLoS Genetics, 2015
Genomes must balance active suppression of transposable elements (TEs) with the need to maintain gene expression. In Arabidopsis, euchromatic TEs are targeted by RNA-directed DNA methylation (RdDM).
Ben P Williams   +3 more
doaj   +1 more source

A screening system to identify transcription factors that induce binding site-directed DNA demethylation

open access: yesEpigenetics & Chromatin, 2017
Background DNA methylation is a fundamental epigenetic modification that is involved in many biological systems such as differentiation and disease. We and others recently showed that some transcription factors (TFs) are involved in the site-specific ...
Takahiro Suzuki   +6 more
doaj   +1 more source

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