Results 61 to 70 of about 7,033 (174)
Detection of Damaged DNA Bases by DNA Glycosylase Enzymes [PDF]
Biochemistry, 2010 A fundamental and shared process in all forms of life is the use of DNA glycosylase enzymes to excise rare damaged bases from genomic DNA. Without such enzymes, the highly ordered primary sequences of genes would rapidly deteriorate. Recent structural and biophysical studies are beginning to reveal a fascinating multistep mechanism for damaged base ...
Joshua I, Friedman, James T, Stivers
openaire +2 more sources
Advanced Science, EarlyView.A novel exercise‐inducible myokine acidic ribosomal protein P2 (RPLP2), initially identified from human trials, is presented here, whose circulating levels negatively correlate with clinical anxiety severity. Muscle‐derived RPLP2 enhances hippocampal ribosomal assembly and adult neurogenesis to rescue stress‐induced anxiety deficits.
Peiyu Luo +18 more
wiley +1 more source
Advanced Science, EarlyView.In TP53mut GBM cells, reduced P53 function is associated with increased TET1 expression. Genetic or pharmacological inhibition of TET1 correlates with genome fragility, including DNA damage, cellular senescence, telomere shortening, and reactive oxygen species accumulation, which may contribute to increased efficacy of antitumor therapy.
Zhuonan Pu +12 more
wiley +1 more source
Structure of Formamidopyrimidine-DNA Glycosylase Covalently Complexed to DNA [PDF]
Journal of Biological Chemistry, 2002 Formamidopyrimidine-DNA glycosylase (Fpg) is a DNA repair enzyme that excises oxidized purines from damaged DNA. The Schiff base intermediate formed during this reaction between Escherichia coli Fpg and DNA was trapped by reduction with sodium borohydride, and the structure of the resulting covalently cross-linked complex was determined at a 2.1-A ...
Rotem, Gilboa +8 more
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American Journal of Medical Genetics Part A, EarlyView.ABSTRACT Dengue virus (DENV) poses a serious global health challenge, particularly in cases of dengue hemorrhagic fever (DHF). Patients with preexisting mitochondrial disorders may be at increased risk for complications due to the specific impact of DENV on mitochondrial‐dependent cellular processes and immune function.
Audra N. Iness +11 more
wiley +1 more source
Animal Models and Experimental Medicine, EarlyView.The pathogenesis of hypoxic pulmonary hypertension (HPH) remains unclear. In this study, we explored its key regulatory mechanisms using animal models, RNA sequencing, and cellular assays. We found that lncRNA‐92467 functions as a ceRNA, binding miR‐205‐5p, and thereby upregulating PTPRM, inhibiting abnormal proliferation and migration of endothelial ...
Yan‐Ying Shen +7 more
wiley +1 more source
Uracil-DNA glycosylase as a probe for protein-DNA interactions [PDF]
Nucleic Acids Research, 1993 The DNA repair enzyme Uracil-DNA Glycosylase (UDG) can be used to investigate three different features of protein-DNA interactions. Complexes can be probed by simple protection experiments ('footprinting') or by two kinds of interference assays: a missing thymine site (MT-site) experiment and a missing thymine methyl site (MTM-site) experiment.
P R, Devchand +2 more
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Environmental Toxicology and Chemistry, EarlyView.Cross‐species extrapolation of adverse outcome pathway network on reproductive toxicity under the One Health perspective using new approach methodologies. AOP = adverse outcome pathway. Abstract Although ecotoxicological and toxicological risk assessments are performed separately from each other, recent efforts have been made in both disciplines to ...
Elizabeth Dufourcq Sekatcheff +2 more
wiley +1 more source
Uracil in DNA and its processing by different DNA glycosylases [PDF]
Philosophical Transactions of the Royal Society B: Biological Sciences, 2008 Uracil in DNA may result from incorporation of dUMP during replication and from spontaneous or enzymatic deamination of cytosine, resulting in U:A pairs or U:G mismatches, respectively. Uracil generated by activation-induced cytosine deaminase (AID) in B cells is a normal intermediate in adaptive immunity. Five mammalian uracil-DNA
Torkild, Visnes +9 more
openaire +2 more sources
An AP endonuclease functions in active DNA demethylation and gene imprinting in Arabidopsis [corrected]. [PDF]
PLoS 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