Results 81 to 90 of about 77,771 (318)

Cancer-associated TERT promoter mutations abrogate telomerase silencing. [PDF]

, 2015
Mutations in the human telomerase reverse transcriptase (TERT) promoter are the most frequent non-coding mutations in cancer, but their molecular mechanism in tumorigenesis has not been established.
Boyle, John, Chiba, Kunitoshi, Hockemeyer, Dirk, Johnson, Joshua, Vogan, Jacob, Wagner, Tina   +5 more
core   +1 more source

G4‐Ligand‐Directed PROTACs Unveil DR1 as a Novel Ligand‐Co‐Binding G4‐Protein and Reshape G4‐Dependent Transcription

Advanced Science, EarlyView.
G4‐binding proteins (G4BPs) that specifically co‐bind G4s in the presence of small‐molecule ligands represent a critical but unexplored class of proteins. We introduce G4‐Ligand‐Directed PROTACs (G4L‐TACs), a chemical platform that couples G4 ligands (PDS) to E3 recruiters to selectively degrade these ligand‐co‐binding G4BPs.
Mao‐Lin Li, Shu‐Min Xu, Xin‐Chen Jiang, Le‐Tian Dai, Yu‐Tao Hu, Kai‐Bo Wang, Jia‐Heng Tan, Zhi‐Shu Huang, Shuo‐Bin Chen   +8 more
wiley   +1 more source

GbTRB1 binds telomeric DNA in Ginkgo biloba

BMC Plant Biology
Telomere-binding proteins play a crucial role in maintaining the stability of telomere structures. In this study, we found that GbTRB1, a double-stranded telomere-binding protein, can bind telomeric DNA., plays a pivotal role in telomere complex ...
Yu Sun, Huimin Zhang, Yirong Zou, Xueqin Guo, Yuping Feng, Di Liu, Hai Lu   +6 more
doaj   +1 more source

AZT exerts its antitumoral effect by telomeric and non-telomeric effects in a mammary adenocarcinoma model [PDF]

, 2016
Limitless replicative potential is one of the hallmarks of cancer that is mainly due to the activity of telomerase. This holoenzyme maintains telomere length, adding TTAGGG repetitions at the end of chromosomes in each cell division.
Armando, Romina Gabriela, Gomez, Daniel Eduardo, Gomez, Daniel Eduardo   +2 more
core   +1 more source

SETD1A Regulates Glycolysis and Senescence of Nucleus Pulposus Cells via H3K4me3–HELZ2/PPARα‐HIF1α Axis to Drive Intervertebral Disc Degeneration

Advanced Science, EarlyView.
SETD1A is a key epigenetic regulator in NPCs during IDD. In normal NPCs, it sustains H3K4me3–HELZ2/PPARα–HIF1α signaling to maintain glycolytic energy metabolism and proliferation. In degenerated NPCs, reduced SETD1A disrupts this axis, impairing glycolysis and accelerating senescence, highlighting a promising therapeutic target for IDD.
Jiawei Fu, Xue Leng, Jiang Long, Zhengao Liao, Xiaoqin An, Xuezheng Ai, Dan Long, Changqing Li, Bo Huang, Yue Zhou, Shiwu Dong, Chencheng Feng   +11 more
wiley   +1 more source

Telomere Binding Protein Taz1 Establishes Swi6 Heterochromatin Independently of RNAi at Telomeres [PDF]

Current Biology, 2005
The telomere is a specialized heterochromatin conserved among eukaryotes. However, it remains unknown how heterochromatin protein 1 (HP1) is recruited to telomeres and how telomere heterochromatin is formed. In fission yeast, the RNAi (RNA interference)-RITS (RNA-induced initiation of transcriptional silencing) pathway initiates heterochromatin ...
Kanoh, Junko, Sadaie, Mahito, Urano, Takeshi, Ishikawa, Fuyuki   +3 more
openaire   +2 more sources

Mechanozyme: An Artificial Enzyme With a Mechanophore Framework

Advanced 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, Pravin Pokhrel, Sajan Shakya, Bishal Pokhrel, Grinsun Sharma, Pratiksha Chaudhary, Hao Shen, Hanbin Mao   +7 more
wiley   +1 more source

Processing of G4 DNA by Dna2 Helicase/nuclease and RPA provides insights into the mechanism of Dna2/RPA substrate recognition [PDF]

, 2008
The polyguanine-rich DNA sequences commonly found at telomeres and in rDNA arrays have been shown to assemble into structures known as G quadruplexes, or G4 DNA, stabilized by base-stacked G quartets, an arrangement of four hydrogen-bonded guanines.
Campbell, Judith L., Chen, Lu, Masuda-Sasa, Taro, Peng, Xiao P., Polaczek, Piotr   +4 more
core  

Requirement of the FATC domain of protein kinase Tel1 for localization to DNA ends and target protein recognition [PDF]

, 2015
Two large phosphatidylinositol 3-kinase-related protein kinases (PIKKs), ATM and ATR, play a central role in the DNA damage response pathway. PIKKs contain a highly conserved extreme C-terminus called the FRAP-ATM-TRRAP-C-terminal (FATC) domain.
Ghosh, A., Goto, G.H., Henry, E., Ogi, H., Sugimoto, K., Zencir, Sevil   +5 more
core   +1 more source

The emerging role of cellular senescence in renal diseases [PDF]

, 2020
Cellular senescence represents the state of irreversible cell cycle arrest during cell division. Cellular senescence not only plays a role in diverse biological events such as embryogenesis, tissue regeneration and repair, ageing and tumour occurrence ...
Alpini, Gianfranco, Chen, Rong, Francis, Heather, Glaser, Shannon, Li, Siwen, Li, Xuesen, Meng, Fanyin, Wan, Ying, Wu, Nan, Zhang, Chunmei, Zhou, Bingru, Zhou, Tianhao, Zou, Ping   +12 more
core   +1 more source