Results 21 to 30 of about 2,257,590 (274)

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

open access: yesCell Reports, 2015
Toxin-antitoxin (TA) modules are ubiquitous molecular switches controlling bacterial growth via the release of toxins that inhibit cell proliferation.
Alexander Harms   +8 more
doaj   +2 more sources

Innovative Tools for DNA Topology Probing in Human Cells Reveal a Build-Up of Positive Supercoils Following Replication Stress at Telomeres and at the FRA3B Fragile Site [PDF]

open access: yesCells
Linear unconstrained DNA cannot harbor supercoils since these supercoils can diffuse and be eliminated by free rotation of the DNA strands at the end of the molecule.
Claire Ghilain   +5 more
doaj   +2 more sources

Shield strike shatter in DNA topology and nuclease interactions [PDF]

open access: yesNature Communications
DNA degradation by nucleases is central to genome maintenance, immune defense, and the clearance of extracellular DNA, yet its execution at the single-molecule level remains poorly defined.
Jingge Yang   +4 more
doaj   +2 more sources

Pamoic acid and carbenoxolone specifically inhibit CRISPR/Cas9 in bacteria, mammalian cells, and mice in a DNA topology-specific manner [PDF]

open access: yesGenome Biology
Background Regulation of the target DNA cleavage activity of CRISPR/Cas has naturally evolved in a few bacteria or bacteriophages but is lacking in higher species.
Yuxuan Zhang   +5 more
doaj   +2 more sources

A review on nonlinear DNA physics [PDF]

open access: yesRoyal Society Open Science, 2020
The study and the investigation of structural and dynamical properties of complex systems have attracted considerable interest among scientists in general and physicists and biologists in particular.
Dalibor Chevizovich   +4 more
doaj   +1 more source

Data of transcriptional effects of the merbarone-mediated inhibition of TOP2

open access: yesData in Brief, 2022
Type II DNA topoisomerases relax topological stress by transiently gating DNA passage in a controlled cut-and-reseal mechanism that affects both DNA strands.
Fernando M. Delgado-Chaves   +6 more
doaj   +1 more source

Topogami: Topologically Linked DNA Origami [PDF]

open access: yesACS Nanoscience Au, 2021
DNA origami is a widely used DNA nanotechnology that allows construction of two-dimensional and three-dimensional nanometric shapes. The designability and rigidity of DNA origami make it an ideal material for construction of topologically linked molecules such as catenanes, which are attractive for their potential as motors and molecular machines ...
Yusuke Sakai   +4 more
openaire   +3 more sources

Topoisomerase IIα represses transcription by enforcing promoter-proximal pausing

open access: yesCell Reports, 2021
Summary: Accumulation of topological stress in the form of DNA supercoiling is inherent to the advance of RNA polymerase II (Pol II) and needs to be resolved by DNA topoisomerases to sustain productive transcriptional elongation.
Andrés Herrero-Ruiz   +6 more
doaj   +1 more source

Editorial: Chromosome architecture and DNA topology in prokaryotes [PDF]

open access: yesFrontiers in Microbiology, 2023
Tamara Basta   +2 more
doaj   +2 more sources

A topological analysis of difference topology experiments of condensin with topoisomerase II

open access: yesBiology Open, 2020
An experimental technique called difference topology combined with the mathematics of tangle analysis has been used to unveil the structure of DNA bound by the Mu transpososome. However, difference topology experiments can be difficult and time consuming.
Soojeong Kim, Isabel K. Darcy
doaj   +1 more source

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