Results 41 to 50 of about 7,004 (177)

The trajectory of intrahelical lesion recognition and extrusion by the human 8-oxoguanine DNA glycosylase

open access: yesNature Communications, 2020
DNA glycosylases are lesion-specific enzymes that recognize specific nucleobase damages and catalyze their excision through cleavage of the glycosidic bond.
Uddhav K. Shigdel   +6 more
doaj   +1 more source

DNA glycosylases involved in base excision repair may be associated with cancer risk in BRCA1 and BRCA2 mutation carriers. [PDF]

open access: yesPLoS Genetics, 2014
Single Nucleotide Polymorphisms (SNPs) in genes involved in the DNA Base Excision Repair (BER) pathway could be associated with cancer risk in carriers of mutations in the high-penetrance susceptibility genes BRCA1 and BRCA2, given the relation of ...
Ana Osorio   +199 more
doaj   +1 more source

Biogenesis of Iron–Sulfur Clusters and Their Role in DNA Metabolism

open access: yesFrontiers in Cell and Developmental Biology, 2021
Iron–sulfur (Fe/S) clusters (ISCs) are redox-active protein cofactors that their synthesis, transfer, and insertion into target proteins require many components. Mitochondrial ISC assembly is the foundation of all cellular ISCs in eukaryotic cells.
Ruifeng Shi   +6 more
doaj   +1 more source

Dataset for dynamics and conformational changes in human NEIL2 protein analyzed by integrative structural biology approach

open access: yesData in Brief, 2022
This work presents new data on human endonuclease VIII-like 2 protein (hNEIL2), a part of DNA glycosylases of the helix–two-turn–helix structural superfamily. While X-ray structure of oNEIL2 (opossum Monodelphis) was resolved partially [1], the structure
Polina V. Zhdanova   +4 more
doaj   +1 more source

Structural Basis for Nucleobase Activation by the Adenine DNA Glycosylase MutY. [PDF]

open access: yesChembiochem
DNA glycosylase MutY engages its adenine nucleobase substrate in a syn orientation with a catalytic Glu. X‐ray crystal structures of MutY with Glu replaced suggest that a disengaged “on hold” state with anti nucleobase orientation may explain how MutY avoids catastrophic activity at inappropriate adenines.
Russelburg LP   +4 more
europepmc   +2 more sources

Expression patterns of Neil3 during embryonic brain development and neoplasia

open access: yesBMC Neuroscience, 2009
Background The base excision repair pathway is responsible for repairing small DNA base lesions caused by endogenous and exogenous damaging agents. Repair is initiated by DNA glycosylases that recognize and remove the lesions.
Bjørås Magnar   +6 more
doaj   +1 more source

Repair of oxidative DNA base damage in the host genome influences the HIV integration site sequence preference. [PDF]

open access: yesPLoS ONE, 2014
Host base excision repair (BER) proteins that repair oxidative damage enhance HIV infection. These proteins include the oxidative DNA damage glycosylases 8-oxo-guanine DNA glycosylase (OGG1) and mutY homolog (MYH) as well as DNA polymerase beta (Polβ ...
Geoffrey R Bennett   +7 more
doaj   +1 more source

Active DNA Demethylation Mediated by DNA Glycosylases [PDF]

open access: yesAnnual Review of Genetics, 2009
Active DNA demethylation is involved in many vital developmental and physiological processes of plants and animals. Recent genetic and biochemical studies in Arabidopsis have demonstrated that a subfamily of DNA glycosylases function to promote DNA demethylation through a base excision-repair pathway.
openaire   +2 more sources

Structure of a DNA Glycosylase Searching for Lesions [PDF]

open access: yesScience, 2006
DNA glycosylases must interrogate millions of base pairs of undamaged DNA in order to locate and then excise one damaged nucleobase. The nature of this search process remains poorly understood. Here we report the use of disulfide cross-linking (DXL) technology to obtain structures of a bacterial DNA glycosylase, MutM, interrogating undamaged DNA. These
Anirban, Banerjee   +2 more
openaire   +2 more sources

Targeted DNA demethylation in human cells by fusion of a plant 5-methylcytosine DNA glycosylase to a sequence-specific DNA binding domain

open access: yesEpigenetics, 2017
DNA methylation is a crucial epigenetic mark associated to gene silencing, and its targeted removal is a major goal of epigenetic editing. In animal cells, DNA demethylation involves iterative 5mC oxidation by TET enzymes followed by replication ...
Jara Teresa Parrilla-Doblas   +2 more
doaj   +1 more source

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