Results 41 to 50 of about 43,780 (231)

DNA-Mediated Electrochemistry [PDF]

open access: yes, 2008
The base pair stack of DNA has been demonstrated as a medium for long-range charge transport chemistry both in solution and at DNA-modified surfaces. This chemistry is exquisitely sensitive to structural perturbations in the base pair stack as occur with
Barton, Jacqueline K.   +2 more
core   +2 more sources

FACT Assists Base Excision Repair by Boosting the Remodeling Activity of RSC. [PDF]

open access: yesPLoS Genetics, 2016
FACT, in addition to its role in transcription, is likely implicated in both transcription-coupled nucleotide excision repair and DNA double strand break repair.
John Lalith Charles Richard   +11 more
doaj   +1 more source

Contribution of MUTYH variants to male breast cancer risk: results from a multicenter study in Italy [PDF]

open access: yes, 2018
Inherited mutations in BRCA1, and, mainly, BRCA2 genes are associated with increased risk of male breast cancer (MBC). Mutations in PALB2 and CHEK2 genes may also increase MBC risk.
Azzollini, Jacopo   +25 more
core   +3 more sources

Targeted DNA demethylation of the Arabidopsis genome using the human TET1 catalytic domain. [PDF]

open access: yes, 2018
DNA methylation is an important epigenetic modification involved in gene regulation and transposable element silencing. Changes in DNA methylation can be heritable and, thus, can lead to the formation of stable epialleles. A well-characterized example of
Gallego-Bartolomé, Javier   +8 more
core   +2 more sources

Mitochondrial inhibition of uracil-DNA glycosylase is not mutagenic

open access: yesMolecular Cancer, 2004
Background Uracil DNA glycosylase (UDG) plays a major role in repair of uracil formed due to deamination of cytosine. UDG in human cells is present in both the nucleus and mitochondrial compartments.
Singh Keshav K, Kachhap Sushant
doaj   +1 more source

Accumulation of DNA damage alters microRNA gene transcription in Arabidopsis thaliana

open access: yesBMC Plant Biology, 2022
Background MicroRNAs (miRNAs) and other epigenetic modifications play fundamental roles in all eukaryotic biological processes. DNA damage repair is a key process for maintaining the genomic integrity of different organisms exposed to diverse stresses ...
Juan Du   +8 more
doaj   +1 more source

Elevated Level of DNA Damage and Impaired Repair of Oxidative DNA Damage in Patients with Recurrent Depressive Disorder [PDF]

open access: yes, 2015
Background: Depressive disorder (DD), including recurrent DD (rDD), is a severe psychological disease, which affects a large percentage of the world population.
Bielecka-Kowalska, Anna   +9 more
core   +1 more source

Analysis of the machinery and intermediates of the 5hmC-mediated DNA demethylation pathway in aging on samples from the MARKAGE Study [PDF]

open access: yes, 2016
Gradual changes in the DNA methylation landscape occur throughout aging virtually in all human tissues. A widespread reduction of 5-methylcytosine (5mC), associated with highly reproducible site-specific hypermethylation, characterizes the genome in ...
Bacalini, Maria Giulia   +24 more
core   +2 more sources

Genomic 8-oxoguanine modulates gene transcription independent of its repair by DNA glycosylases OGG1 and MUTYH

open access: yesRedox Biology
8-oxo-7,8-dihydroguanine (OG) is one of the most abundant oxidative lesions in the genome and is associated with genome instability. Its mutagenic potential is counteracted by a concerted action of 8-oxoguanine DNA glycosylase (OGG1) and mutY homolog DNA
Tobias Obermann   +8 more
doaj   +1 more source

DNA demethylation by ROS1a in rice vegetative cells promotes methylation in sperm. [PDF]

open access: yes, 2019
Epigenetic reprogramming is required for proper regulation of gene expression in eukaryotic organisms. In Arabidopsis, active DNA demethylation is crucial for seed viability, pollen function, and successful reproduction. The DEMETER (DME) DNA glycosylase
Fischer, Robert L   +6 more
core   +2 more sources

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