Results 51 to 60 of about 12,279 (184)

Excision of damaged bases from transcription intermediates by FPG/NEI superfamily DNA glycosylases [PDF]

, 2017
Oxidative lesions are abundant due to constant presence of reactive oxygen species in living cells. Repair of oxidative base lesions is initiated by DNA glycosylases.
Макашева, К. А.
core   +2 more sources

Inhibiting cGAS‐STING to Preserve Mitochondrial–Nuclear Communication and Stemness in Young Tendon Stem Cells: A Hydrogel Strategy against Age‐Related Tendinopathy

Advanced Science, EarlyView.
A dual‐targeting strategy to rejuvenate aged tendons. A reactive oxygen species (ROS)‐responsive hydrogel co‐delivers a selenium nanozyme (scavenges ROS) and a STING inhibitor to tendon stem cells. This combined action restores mitochondria–nucleus communication, alleviates cellular senescence, and rejuvenates tendon regeneration, offering a novel ...
Zhuo Zhang, Weiyong Song, Heng Yin, Yi Wang, Yi Zou, Yuling Li, Yue Luo, Chao Xiang, Xiaoqin Liu, Yan Xiong, Yong Wang, Ke Jiang   +11 more
wiley   +1 more source

Characterization of demethylating DNA glycosylase ROS1 from Nicotiana tabacum L.

Вавиловский журнал генетики и селекции, 2022
One of the main mechanisms of epigenetic regulation in higher eukaryotes is based on the methylation of cytosine at the C5 position with the formation of 5-methylcytosine (mC), which is further recognized by regulatory proteins.
D. V. Petrova, N. V. Permyakova, I. R. Grin, D. O. Zharkov   +3 more
doaj   +1 more source

Mechanisms of base selection by the E.coli mispaired uracil glycosylase [PDF]

, 2008
The repair of the multitude of single-base lesions formed daily in the cells of all living organisms is accomplished primarily by the base-excision repair (BER) pathway that initiates repair through a series of lesion-selective glycosylases.
Darwanto, Agus, Goddard, William, III, Liu, Pingfang, Pascal, Tod, Sowers, Lawrence C., Theruvathu, Jacob A., Valinluck Lao, Victoria   +6 more
core   +2 more sources

DDM1 and ROS1 have a role in UV-B induced- and oxidative DNA damage in A. thaliana [PDF]

, 2013
Absorption of UV-B by DNA induces the formation of covalent bonds between adjacent pyrimidines. In maize and arabidopsis, plants deficient in chromatin remodeling show increased DNA damage compared to WT plants after a UV-B treatment.
Casati, Paula, Fina, Julieta Paola, Qüesta, Julia I.   +2 more
core   +3 more sources

A Single‐Enzyme Activated CRISPR‐Cas12a Nano System via Subtly Balanced dsDNA for Kinetic‐Gated UDG Detection and Spatiotemporal Cellular Imaging

Advanced Science, EarlyView.
Kinetic‐gated CRISPR–Cas12a activation enables single‐enzyme detection and spatiotemporal imaging of UDG ABSTRACT Uracil‐DNA glycosylase (UDG) is a key enzyme in base excision repair and an important biomarker for genomic stability and disease. In many reported sensing systems, uracil excision is coupled to signal generation through additional ...
Kejun Dong, Hao Hu, Haiyun Wang, Zijia Zheng, Shuangshuang Cheng, Wan Shu, Ruisi Liu, Xiaoyan Xin, Shiyi Huang, Dingchao Qian, Xianjin Xiao, Qiang Fu, Hongbo Wang   +12 more
wiley   +1 more source

Chemical Biology of Mammalian DNA Repair

CHIMIA, 2001
Damage to the heterocyclic bases of DNA in the genome is mainly corrected by the base excision repair (BER) or nucleotide excision repair (NER) pathways.
Orlando D. Schärer
doaj   +2 more sources

Recognition and processing of a new repertoire of DNA substrates by human 3-methyladenine DNA glycosylase (AAG) [PDF]

, 2009
The human 3-methyladenine DNA glycosylase (AAG) recognizes and excises a broad range of purines damaged by alkylation and oxidative damage, including 3-methyladenine, 7-methylguanine, hypoxanthine (Hx), and 1,N[superscript 6]-ethenoadenine (εA).
Aas P. A., Abner C. W., Adhikari S., Berti P. J., Bjelland S., Chakravarti D., Delaney J. C., Delaney J. C., Dianov G., Dosanjh M. K., Eftedal I., el Ghissassi F., Elder R. H., Engelward B. P., Falnes P. O., Falnes P. O., Falnes P. O., Frick L. E., Friedberg E. C., Gallagher P. E., Goodenough A. K., Guengerich F. P., Guengerich F. P., Guengerich F. P., Guliaev A. B., Hang B., Haushalter K. A., Hitchcock T. M., Koivisto P., Kusmierek J. T., Kusmierek J. T., Lau A. Y., Lau A. Y., Leonard N. J., Ludlum D. B., Miao F., Mishina Y., Nilsen H., Ougland R., O’Brien P. J., O’Brien P. J., O’Connor T. R., O’Connor T. R., O’Neill R. J., Pearl L. H., Pendlebury A., Ringvoll J., Roy R., Samson L., Saparbaev M., Saparbaev M., Saparbaev M., Singer B., Trewick S. C., Wang H., Westbye M. P., Wuenschell G. E., Wyatt M. D.   +57 more
core   +1 more source

Bridging the Gap Between Human Toxicology and Ecotoxicology Under One Health Perspective by a Cross‐Species Adverse Outcome Pathway Network for Reproductive Toxicity

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, Jaeseong Jeong, Jinhee Choi   +2 more
wiley   +1 more source

DNA glycosylases: in DNA repair and beyond [PDF]

, 2018
The base excision repair machinery protects DNA in cells from the damaging effects of oxidation, alkylation, and deamination; it is specialized to fix single-base damage in the form of small chemical modifications. Base modifications can be mutagenic and/
Jacobs, Angelika, Schär, Primo
core