Results 81 to 90 of about 14,206 (239)

DNA topoisomerases in mtDNA maintenance and ageing

, 2014
DNA topoisomerases pass DNA strands through each other, a function essential for all DNA metabolic processes that create supercoils or entanglements of DNA. Topoisomerases play an ambivalent role in nuclear genome maintenance: Deficiency compromises gene
Boege, Fritz, Sobek, Stefan
core   +1 more source

Structural insights into the DNA topoisomerase II of the African swine fever virus

Nature Communications
Type II topoisomerases are ubiquitous enzymes that play a pivotal role in modulating the topological configuration of double-stranded DNA. These topoisomerases are required for DNA metabolism and have been extensively studied in both prokaryotic and ...
Jingyuan Cong, Yuhui Xin, Huiling Kang, Yunge Yang, Chenlong Wang, Dongming Zhao, Xuemei Li, Zihe Rao, Yutao Chen   +8 more
doaj   +1 more source

A multiplex interactome of Ebola virus proteins reveals TM9SF2 as a cell‐surface attachment factor that promotes viral entry

iMetaOmics, EarlyView.
This study generates a comprehensive Ebola virus (EBOV)‐human protein–protein interactome, comprising 1728 core high‐confidence interactions. Further interactome analysis revealed the potential association of EBOV glycoprotein (GP) with the host factor TM9SF2. Subsequent mechanistic investigations confirmed that TM9SF2 functions as an attachment factor
Limin Shang, Shouwen Du, Yuchen Liu, Letian Li, Xi Wu, Yanzhi Yuan, Chaozhi Jin, Qingkun Mi, Yuhang Wang, Xiaoshuang Shi, Jiamin Wang, Guoqing Zhang, Yidan Ma, Weijin Huang, Jigang Wang, Jian Wang, Chang Li   +16 more
wiley   +1 more source

Two type I topoisomerases maintain DNA topology in human mitochondria

, 2022
Genetic processes require the activity of multiple topoisomerases, essential enzymes that remove topological tension and intermolecular linkages in DNA. We have investigated the subcellular localisation and activity of the six human topoisomerases with a
Erdinc, Direnis,, Deen, D., Pyle, Angela, Austin, C. A., Cowell, I. G., Chapman, James, Rodríguez-Luis, Alejandro, Menger, K. E., Khazeem, M. M., Casement, J. W., Austin, Caroline A, Cowell, Ian G, Di Leo, V., Nicholls, Thomas J, Díaz-Maldonado, Héctor, Deen, Dasha, Menger, Katja E, Nicholls, T. J., Casement, John W, Di Leo, Valeria, Chapman, J., Khazeem, Mushtaq M, Erdinc, Direnis, Falkenberg, Maria, Falkenberg, Maria,, Diaz-Maldonado, Hector,, Rodriguez-Luis, A., Pyle, A.   +27 more
core   +1 more source

Structural insights into the gating of DNA passage by the topoisomerase II DNA-gate

Nature Communications, 2018
Type II DNA topoisomerases (Top2s) direct the passage of one DNA duplex through another, which is important for resolving DNA entanglements. Here the authors combine X-ray crystallography and MD simulations and present the structure of the human Top2 DNA-
Shin-Fu Chen, Nan-Lan Huang, Jung-Hsin Lin, Chyuan-Chuan Wu, Ying-Ren Wang, Yu-Jen Yu, Michael K. Gilson, Nei-Li Chan   +7 more
doaj   +1 more source

Can DNA Topoisomerases Be Ribonucleases? [PDF]

Cell, 1997
DNA topoisomerases catalyze changes in the linkage of DNA strands through a concerted mechanism of DNA strand cleavage and ligation reactions (for review, seeWang 1996xWang, J.C. Annu. Rev. Biochem. 1996; 65: 635–692Crossref | PubMedSee all ReferencesWang 1996).
openaire   +2 more sources

The Effects of Angiotensin Receptor Neprilysin Inhibitor on Endoplasmic Reticulum Stress in Doxorubicin‐Mediated Cardiomyopathy‐Associated Heart Failure Model in Rats

Journal of Applied Toxicology, EarlyView.
ABSTRACT One of the most serious complications associated with the use of the chemotherapeutic agent doxorubicin (DOX) is cardiomyopathy. Although cardioprotective drugs such as angiotensin receptor‐neprilysin inhibitors (ARNI) are used to prevent cardiomyopathy in DOX patients, no studies have reported the relationship between ARNI and endoplasmic ...
Mert Unvan, Meryem İlkay Karagül, Hatice Oruç Demirbağ, Ebru Balli   +3 more
wiley   +1 more source

Synthesis, Cytotoxicity, and Apoptosis‐Associated Cell Death Activity of an Isatin‐Containing Pyrimidine‐Derived Cu(II) Complex

Journal of Applied Toxicology, EarlyView.
ABSTRACT A Cu(II) complex derived from a pyrimidine with the isatin group was synthesized and tested for its cytotoxic effects on A549 lung cancer and MCF‐7 breast cancer cell lines, as well as its effects on apoptosis‐associated cell death and cell cycle regulation in A549 cells. To evaluate cytotoxicity, MTT assays were performed at 24, 48, and 72 h,
Müjgan Kesik Oktay, Cansu Topkaya, Elif Kağa, Yasin Eren, Ramazan Güp   +4 more
wiley   +1 more source

DNA topology: Topoisomerases keep it simple

, 1997
The ability of type II DNA topoisomerases to perturb the equilibrium distributions of DNA topoisomers is a consequence of their ability to hydrolyse ATP.
Bates, Andrew D, Maxwell, Anthony
core   +1 more source

Experiencing 50 Years of Synergistic Development in Structural Biology and Enzymology

Journal of the Chinese Chemical Society, EarlyView.
Picture of Sunney Chan with Academia Sinica (AS) President James C. Liao and three Vice Presidents: Shin‐Kun Peng (left one), Tang K. Tang (right one), and Mei‐Yin Chou (right 2), taken at the annual Chinese New Year's Banquet of AS, February 7, 2025. This was likely Sunney's last appearance in formal activities of AS.
Ming‐Daw Tsai
wiley   +1 more source