Results 71 to 80 of about 44,346 (216)

Crystal structure of mimivirus uracil-DNA glycosylase. [PDF]

open access: yesPLoS ONE, 2017
Cytosine deamination induced by stresses or enzymatic catalysis converts deoxycytidine into deoxyuridine, thereby introducing a G to A mutation after DNA replication.
Eunju Kwon   +3 more
doaj   +1 more source

Poxvirus uracil‐DNA glycosylase—An unusual member of the family I uracil‐DNA glycosylases [PDF]

open access: yesProtein Science, 2016
AbstractUracil‐DNA glycosylases are ubiquitous enzymes, which play a key role repairing damages in DNA and in maintaining genomic integrity by catalyzing the first step in the base excision repair pathway. Within the superfamily of uracil‐DNA glycosylases family I enzymes or UNGs are specific for recognizing and removing uracil from DNA.
Norbert Schormann   +8 more
openaire   +2 more sources

Evolution of Prime Editing: Enhancing Efficiency and Expanding Capacity

open access: yesAdvanced Science, EarlyView.
Most rare diseases are caused by genetic mutations. Prime editing (PE) has emerged as a versatile tool capable of inducing diverse mutations without generating DNA double‐strand breaks. Despite its significant clinical potential, PE faces limitations in terms of efficiency and scalability.
Jihyeon Yu   +5 more
wiley   +1 more source

Bacillus Calmette-Guerin Increases Base Excision Repair in Bladder Cancer Cells

open access: yesJournal of Urological Surgery, 2021
Objective:Most patients with non-muscle-invasive bladder cancer (NMIBC) do not respond to intravesical Bacillus Calmette-Guerin (BCG) immunotherapy and have high risk of NMIBC recurrence and progression.
Selçuk Keskin   +2 more
doaj   +1 more source

Uracil-DNA glycosylases preferentially excise mispaired uracil [PDF]

open access: yesBiochemical Journal, 1992
We have investigated the substrate specificity of human, viral and bacterial uracil-DNA glycosylases employing as substrate double-stranded oligonucleotides containing in the same position of the 5′-32P-labelled strand an uracil residue facing, on the complementary strand, guanine (mimicking cytosine deamination) or adenine (mimicking dUTP ...
VERRI A   +3 more
openaire   +3 more sources

Mini‐Hairpin DNA: Extraordinarily Stable Structure and Its Applications

open access: yesChemistry – A European Journal, EarlyView.
Mini‐hairpin DNA fragments containing GCGAAGC and GCGAAAGC form exceptionally stable hairpin‐like structures, with only two G−C pairs and one sheared G−A pair, remaining undenatured in 7 M urea and resisting nuclease digestion. These mini‐hairpin sequences frequently appear in replication and transcription origins, influence DNA sequencing fidelity ...
Michiko Kimoto, Ichiro Hirao
wiley   +1 more source

Uracil Accumulation and Mutagenesis Dominated by Cytosine Deamination in CpG Dinucleotides in Mice Lacking UNG and SMUG1

open access: yesScientific Reports, 2017
Both a DNA lesion and an intermediate for antibody maturation, uracil is primarily processed by base excision repair (BER), either initiated by uracil-DNA glycosylase (UNG) or by single-strand selective monofunctional uracil DNA glycosylase (SMUG1).
Lene Alsøe   +15 more
doaj   +1 more source

Epigenotoxicity: Decoding the epigenetic imprints of genotoxic agents and their implications for regulatory genetic toxicology

open access: yesEnvironmental and Molecular Mutagenesis, EarlyView.
Abstract Regulatory genetic toxicology focuses on DNA damage and subsequent gene mutations. However, genotoxic agents can also affect epigenetic marks, and incorporation of epigenetic data into the regulatory framework may thus enhance the accuracy of risk assessment.
Roger Godschalk   +4 more
wiley   +1 more source

A ratiometric electrochemical assay for human 8-oxoguanine DNA glycosylase amplified by hybridization chain reaction

open access: yesElectrochemistry Communications, 2019
Human 8-oxoguanine DNA glycosylase 1 (hOGG1) is an important DNA repair enzyme, which is closely related to the occurrence and development of certain diseases.
Dawei Yang   +3 more
doaj   +1 more source

DNA Checkpoint and Repair Factors Are Nuclear Sensors for Intracellular Organelle Stresses-Inflammations and Cancers Can Have High Genomic Risks. [PDF]

open access: yes, 2018
Under inflammatory conditions, inflammatory cells release reactive oxygen species (ROS) and reactive nitrogen species (RNS) which cause DNA damage. If not appropriately repaired, DNA damage leads to gene mutations and genomic instability.
Chen, Hongping   +21 more
core   +2 more sources

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