Results 81 to 90 of about 95,440 (308)

Evidence That DNA (Cytosine-5) Methyltransferase Regulates Synaptic Plasticity in the Hippocampus [PDF]

open access: yesJournal of Biological Chemistry, 2006
DNA (cytosine-5) methylation represents one of the most widely used mechanisms of enduring cellular memory. Stable patterns of DNA methylation are established during development, resulting in creation of persisting cellular phenotypes. There is growing evidence that the nervous system has co-opted a number of cellular mechanisms used during development
Jonathan M, Levenson   +7 more
openaire   +2 more sources

Biologically relevant oxidants and terminology, classification and nomenclature of oxidatively generated damage to nucleobases and 2-deoxyribose in nucleic acids [PDF]

open access: yes, 2012
A broad scientific community is involved in investigations aimed at delineating the mechanisms of formation and cellular processing of oxidatively generated damage to nucleic acids.
Bialkowski, Karol   +9 more
core   +1 more source

Extreme Kinetic Stability and RNase Resistance of Human Telomerase RNA G‐Quadruplexes Overcome by DHX36 Helicase

open access: yesAdvanced Science, EarlyView.
The RNA G‐quadruplexes formed at the 5'‐end of the RNA component of human telomerase possess extreme slow unfolding rate, rendering them resistant to nuclease degradation. The helicase DHX36 overcame this kinetic barrier and significantly reduced the folded fraction.
Qun Luo   +5 more
wiley   +1 more source

Single-Base Resolution Analysis of 5-Formyl and 5-Carboxyl Cytosine Reveals Promoter DNA Methylation Dynamics

open access: yesCell Reports, 2015
Ten eleven translocation (Tet) proteins oxidize 5-methylcytosine (5mC) to 5-hydroxymethylcytosine (5hmC), 5-formylcytosine (5fC), and 5-carboxylcytosine (5caC). 5fC and 5caC can be further excised by thymine-DNA glycosylase (Tdg).
Francesco Neri   +8 more
doaj   +1 more source

Fluorescence-based high-throughput assay for human DNA (cytosine-5)-methyltransferase 1 [PDF]

open access: yesAnalytical Biochemistry, 2010
We have developed the first economical and rapid nonradioactive assay method that is suitable for high-throughput screening of the important pharmacological target human DNA (cytosine-5)-methyltransferase 1 (DNMT1). The method combines three key innovations: the use of a truncated form of the enzyme that is highly active on a 26-bp hemimethylated DNA ...
Yu, Ye, James T, Stivers
openaire   +2 more sources

Reelin expression is up-regulated in mice colon in response to acute colitis and provides resistance against colitis [PDF]

open access: yes, 2017
Reelin is an extracellular matrix protein first known for its key role in neuronal migration. Studies in rodent small intestine suggested that reelin protects the organism from intestinal pathology.
Calonge Castrillo, María Luisa   +5 more
core   +1 more source

Mechanozyme: An Artificial Enzyme With a Mechanophore Framework

open access: yesAdvanced Science, EarlyView.
Mechanical destabilization of a G‐quadruplex mechanophore in a DNAzyme markedly boosts its catalytic activity, demonstrating “mechanozymes” as artificial enzymes whose functions are modulated by mechanical stress exerted by ultrasonication. This mechanozyme principle is broadly applicable to control biomolecular activities.
Jiahao Ji   +7 more
wiley   +1 more source

Candidate genes that may be responsible for the unusual resistances exhibited by Bacillus pumilus SAFR-032 spores [PDF]

open access: yes, 2013
The spores of several Bacillus species, including Bacillus pumilus SAFR-032 and B. safensis FO-36b, which were isolated from the spacecraft assembly facility at NASA's Jet Propulsion Laboratory, are unusually resistant to UV radiation and hydrogen ...
Allen, Shamail   +9 more
core   +4 more sources

Majority‐Voting Overlapping Method for Error Correction in DNA Data Storage

open access: yesAdvanced Intelligent Discovery, EarlyView.
We propose an overlapping‐based majority‐voting method for DNA data storage error correction. By aligning multiple reads and choosing the most frequent base per position, it suppresses substitution errors without prior models. Validated on synthetic and real sequencing data, it achieves high‐fidelity, scalable, and cost‐effective reconstruction ...
Thi Bich Ngoc Nguyen   +5 more
wiley   +1 more source

Pistil transcriptome analysis to disclose genes and gene products related to aposporous apomixis in Hypericum perforatum L. [PDF]

open access: yes, 2017
Unlike sexual reproduction, apomixis encompasses a number of reproductive strategies,which permit maternal genome inheritance without genetic recombination and syngamy.
Altschmied, Lothar   +6 more
core   +2 more sources

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