Results 41 to 50 of about 2,766,615 (303)

DNA Topology: Dynamic DNA Looping [PDF]

open access: yesCurrent Biology, 2006
The DNA in repressive loops is often tightly bent. DNA flexibility imposes significant constraints on their topology suggesting that they may exist as perturbations in plectonemic DNA.
openaire   +2 more sources

Mutation of DNA and RNA sequences through the application of topological spaces

open access: yesAIMS Mathematics, 2023
Topology is branch of modern mathematics that plays an important role in applications of biology. The aim of this paper is to study DNA sequence mutations using multisets, relations, metric functions, topology and association indices.
A. A. El-Atik   +5 more
doaj   +1 more source

Triplex-forming DNA Probe Approach for Silver Detection and the Effect of C-G·C Triplet Distribution on Triplex Stability

open access: yesHittite Journal of Science and Engineering, 2019
I n this study novel triplex forming DNA probes have been designed in order to detect Ag+ ion in low concentrations. The use of triplex forming oligonucleotides is a convenient in applications of sensing biomolecules due to their sequence specificity and
Osman Doluca
doaj   +1 more source

“An End to a Means”: How DNA-End Structure Shapes the Double-Strand Break Repair Process

open access: yesFrontiers in Molecular Biosciences, 2020
Endogenously-arising DNA double-strand breaks (DSBs) rarely harbor canonical 5′-phosphate, 3′-hydroxyl moieties at the ends, which are, regardless of the pathway used, ultimately required for their repair.
Almudena Serrano-Benítez   +4 more
doaj   +1 more source

An organometallic compound which exhibits a DNA topology-dependent one-stranded intercalation mode [PDF]

open access: yes, 2016
Understanding how small molecules interact with DNA is essential since it underlies a multitude of pathological conditions and therapeutic interventions.
Adhireksan   +16 more
core   +2 more sources

Mini-chromosome maintenance complexes form a filament to remodel DNA structure and topology. [PDF]

open access: yes, 2013
Deregulation of mini-chromosome maintenance (MCM) proteins is associated with genomic instability and cancer. MCM complexes are recruited to replication origins for genome duplication.
Brewster, Aaron   +7 more
core   +1 more source

DNA Mechanics and Topology [PDF]

open access: yes, 2018
We review the current understanding of the mechanics of DNA and DNA-protein complexes, from scales of base pairs up to whole chromosomes. Mechanics of the double helix as revealed by single-molecule experiments will be described, with an emphasis on the role of polymer statistical mechanics.
Sumitabha, Brahmachari, John F, Marko
openaire   +2 more sources

DNA polymerase ε harmonizes topological states and R-loops formation to maintain genome integrity in Arabidopsis

open access: yesNature Communications, 2023
Genome topology is tied to R-loop formation and genome stability. However, the regulatory mechanism remains to be elucidated. By establishing a system to sense the connections between R-loops and genome topology states, we show that inhibiting DNA ...
Qin Li   +7 more
doaj   +1 more source

Topological Behavior of Plasmid DNA [PDF]

open access: yesMicrobiology Spectrum, 2014
ABSTRACT The discovery of the B-form structure of DNA by Watson and Crick led to an explosion of research on nucleic acids in the fields of biochemistry, biophysics, and genetics. Powerful techniques were developed to reveal a myriad of different structural conformations that change B-DNA as it is transcribed, replicated, and ...
N Patrick, Higgins   +1 more
openaire   +2 more sources

Hsmar1 transposition is sensitive to the topology of the transposon donor and the target. [PDF]

open access: yesPLoS ONE, 2013
Hsmar1 is a member of the Tc1-mariner superfamily of DNA transposons. These elements mobilize within the genome of their host by a cut-and-paste mechanism.
Corentin Claeys Bouuaert   +1 more
doaj   +1 more source

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