Results 31 to 40 of about 9,967 (240)

Electrostatics of DNA–DNA juxtapositions: consequences for type II topoisomerase function [PDF]

Journal of Physics: Condensed Matter, 2006
Type II topoisomerases resolve problematic DNA topologies such as knots, catenanes, and supercoils that arise as a consequence of DNA replication and recombination. Failure to remove problematic DNA topologies prohibits cell division and can result in cell death or genetic mutation. Such catastrophic consequences make topoisomerases an effective target
Graham L, Randall, B Montgomery, Pettitt, Gregory R, Buck, E Lynn, Zechiedrich   +3 more
openaire   +2 more sources

Exploring Alternative Pathways to Target Bacterial Type II Topoisomerases Using NBTI Antibacterials: Beyond Halogen-Bonding Interactions

Antibiotics, 2023
Novel bacterial topoisomerase inhibitors (NBTIs) are a new class of antibacterial agents that target bacterial type II topoisomerases (DNA gyrase and topoisomerase IV). Our recently disclosed crystal structure of an NBTI ligand in complex with DNA gyrase
Maja Kokot, Doroteja Novak, Irena Zdovc, Marko Anderluh, Martina Hrast, Nikola Minovski   +5 more
doaj   +1 more source

DNA topoisomerase II is involved in regulation of cyst wall protein genes and differentiation in Giardia lamblia. [PDF]

PLoS Neglected Tropical Diseases, 2013
The protozoan Giardia lamblia differentiates into infectious cysts within the human intestinal tract for disease transmission. Expression of the cyst wall protein (cwp) genes increases with similar kinetics during encystation.
Bo-Chi Lin, Li-Hsin Su, Shih-Che Weng, Yu-Jiao Pan, Nei-Li Chan, Tsai-Kun Li, Hsin-Chih Wang, Chin-Hung Sun   +7 more
doaj   +1 more source

Cryo-EM structures of African swine fever virus topoisomerase

mBio, 2023
Type II topoisomerases ubiquitously exist in cellular organisms, where they play an essential role in resolving the topological problems of DNA. The viral type II topoisomerase encoded by the African swine fever virus (ASFV) is critical for viral ...
Yan Zhao, Wenhua Kuang, Qiyin An, Jinyue Li, Yong Wang, Zengqin Deng   +5 more
doaj   +1 more source

Chromatinization modulates topoisomerase II processivity

Nature Communications, 2023
Type IIA topoisomerases are essential DNA processing enzymes that must robustly and reliably relax DNA torsional stress. While cellular processes constantly create varying torsional stress, how this variation impacts type IIA topoisomerase function ...
Jaeyoon Lee, Meiling Wu, James T. Inman, Gundeep Singh, Seong ha Park, Joyce H. Lee, Robert M. Fulbright, Yifeng Hong, Joshua Jeong, James M. Berger, Michelle D. Wang   +10 more
doaj   +1 more source

Hot-spot consensus of fluoroquinolone-mediated DNA cleavage by gram-negative and gram-positive type II DNA topoisomerases [PDF]

, 2007
Bacterial DNA gyrase and topoisomerase IV are selective targets of fluoroquinolones. Topoisomerase IV versus gyrase and Gram-positive versus Gram-negative behavior was studied based on the different recognition of DNA sequences by topoisomerase ...
GIARETTA G, COMUZZI V, Palumbo, M, Leo, E, Mitchenall, LA, Richter, SN, Maxwell, A, Fisher, LM, RICHTER, SARA, Giaretta, G, LEO E, MAXWELL A, Comuzzi, V, FISHER LM, MITCHENALL LA, PALUMBO, MANLIO   +15 more
core   +1 more source

The impact of the C-terminal domain on the interaction of human DNA topoisomerase II α and β with DNA [PDF]

, 2011
<b>Background</b> Type II DNA topoisomerases are essential, ubiquitous enzymes that act to relieve topological problems arising in DNA from normal cellular activity.
Caroline A. Austin, Kathryn L Gilroy, Caroline A Austin, Austin Caroline A., Austin, C.A., Gilroy Kathryn L., Gilroy, K.L., Kathryn L. Gilroy   +7 more
core   +1 more source

DNA topoisomerases participate in fragility of the oncogene RET [PDF]

, 2013
Fragile site breakage was previously shown to result in rearrangement of the RET oncogene, resembling the rearrangements found in thyroid cancer. Common fragile sites are specific regions of the genome with a high susceptibility to DNA breakage under ...
Yuh-Hwa Wang (457429), Dillon, LW, Yuh-Hwa Wang, Christine E. Lehman (457427), Laura W Dillon, Dillon Laura W., Nikiforov Yuri E., Pierce Levi C. T., Wang, YH, Laura W. Dillon (457426), Lehman, Christine E., Christine E Lehman, Lehman, CE, Pierce, Levi C. T., Nikiforov, Yuri E., Pierce, LCT, Yuri E. Nikiforov (457428), Levi C T Pierce, Rybenkov, Valentin V, Wang, Yuh-Hwa, Wang Yuh-Hwa, Levi C. T. Pierce (454414), Lehman Christine E., Yuri E Nikiforov, Dillon, Laura W., Nikiforov, YE   +25 more
core   +1 more source

Topoisomerase VI senses and exploits both DNA crossings and bends to facilitate strand passage

eLife, 2018
Type II topoisomerases manage DNA supercoiling and aid chromosome segregation using a complex, ATP-dependent duplex strand passage mechanism. Type IIB topoisomerases and their homologs support both archaeal/plant viability and meiotic recombination. Topo
Timothy J Wendorff, James M Berger
doaj   +1 more source

Adenylylation of Gyrase and Topo IV by FicT Toxins Disrupts Bacterial DNA Topology [PDF]

, 2015
Toxin-antitoxin (TA) modules are ubiquitous molecular switches controlling bacterial growth via the release of toxins that inhibit cell proliferation.
Gerdes, K., Glatter, Timo, Dehio, Christoph, Alexander Harms, Goepfert, A., Scheu, P., Kenn Gerdes, Glatter, T. ; https://orcid.org/, Schirmer, T., Harms, Alexander, Christoph Dehio, Harms, A., Timo Glatter, Stanger, Frédéric Valentin, Gerdes, Kenn, Dehio, C., Schirmer, Tilman, Harms, Alexander; id_orcid, de Jong, I., de Jong, Imke Greet, Stanger, F., Tilman Schirmer, Patrick Daniel Scheu, Arnaud Goepfert, Scheu, Patrick Daniel, Frédéric Valentin Stanger, Imke Greet de Jong, Goepfert, Arnaud   +27 more
core   +1 more source