Results 61 to 70 of about 3,020,470 (372)

Extrachromosomal circular DNA-based amplification and transmission of herbicide resistance in crop weed Amaranthus palmeri

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2018
Significance Glyphosate is a nonselective herbicide used around the globe for weed control in glyphosate-resistant (GR) and noncrop situations. The extensive and exclusive use of glyphosate has led to the evolution of herbicide resistance in many crop ...
D. Koo   +7 more
semanticscholar   +1 more source

Extrachromosomal Circular DNA: Current Knowledge and Implications for CNS Aging and Neurodegeneration

open access: yesInternational Journal of Molecular Sciences, 2020
Still unresolved is the question of how a lifetime accumulation of somatic gene copy number alterations impact organ functionality and aging and age-related pathologies.
Quratul Ain   +4 more
semanticscholar   +1 more source

Sensitive detection of circular DNAs at single-nucleotide resolution using guided realignment of partially aligned reads

open access: yesBMC Bioinformatics, 2019
Background Circular DNA has recently been identified across different species including human normal and cancerous tissue, but short-read mappers are unable to align many of the reads crossing circle junctions hence limiting their detection from short ...
Iñigo Prada-Luengo   +3 more
doaj   +1 more source

A localized transition in the size variation of circular DNA in nanofluidic slitlike confinement

open access: yesAIP Advances, 2013
We report strong evidence for a localized transition in the size variation of circular DNA between strong and moderate regimes of slitlike confinement. A novel and rigorous statistical analysis was applied to our recent experimental measurements of DNA ...
Elizabeth A. Strychalski   +2 more
doaj   +1 more source

First Insights into the Occurrence of Circular Single-Stranded DNA Genomes in Asian and African Cattle

open access: yesAnimals, 2023
Circular replicase-encoding single-stranded (CRESS) DNA viruses and other circular DNA agents are increasingly found in various samples and animals. A specific class of these agents—termed bovine meat and milk factors (BMMF)—has been supposed to act as a
Marie-Thérèse König   +7 more
doaj   +1 more source

Atomic force microscopy shows that vaccinia topoisomerase IB generates filaments on DNA in a cooperative fashion [PDF]

open access: yes, 2005
Type IB DNA topoisomerases cleave and rejoin one strand of the DNA duplex, allowing for the removal of supercoils generated during replication and transcription.
Dekker, Cees   +5 more
core   +2 more sources

Characterization of the Termini of Cytoplasmic Hepatitis B Virus Deproteinated Relaxed Circular DNA

open access: yesJournal of Virology, 2020
The covalently closed circular DNA (cccDNA) is the persistent form of the hepatitis B virus (HBV) genome in viral infection and an undisputed antiviral target for an HBV cure.
Dawei Cai   +8 more
semanticscholar   +1 more source

The Knot Spectrum of Confined Random Equilateral Polygons

open access: yesComputational and Mathematical Biophysics, 2014
It is well known that genomic materials (long DNA chains) of living organisms are often packed compactly under extreme confining conditions using macromolecular self-assembly processes but the general DNA packing mechanism remains an unsolved problem. It
Diao Y.   +4 more
doaj   +1 more source

HBV COVALENTLY CLOSED CIRCULAR DNA AS A MARKER OF PREVALENCE OF OCCULT HEPATITIS В IN PATIENTS WITH HBV, HDV AND HCV INFECTION IN UZBEKISTAN

open access: yesЖурнал микробиологии, эпидемиологии и иммунобиологии, 2016
Aim. Evaluate significance of covalently closed circular DNA of hepatitis В virus as a marker for detection of occult viral hepatitis В in Uzbekistan population with hepatitis of various genesis. Materials and methods.
A. V. Semenov   +6 more
doaj   +1 more source

Temperature dependence of circular DNA topological states

open access: yes, 2009
Circular double stranded DNA has different topological states which are defined by their linking numbers. Equilibrium distribution of linking numbers can be obtained by closing a linear DNA into a circle by ligase.
Chen, Hu   +5 more
core   +1 more source

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