Results 41 to 50 of about 2,307,592 (280)

RNA topoisomerase is prevalent in all domains of life and associates with polyribosomes in animals [PDF]

open access: yes, 2016
DNA Topoisomerases are essential to resolve topological problems during DNA metabolism in all species. However, the prevalence and function of RNA topoisomerases remain uncertain.
Ahmad, Muzammil   +20 more
core   +3 more sources

Anti-topoisomerase drugs as potent inducers of chromosomal aberrations

open access: yesGenetics and Molecular Biology, 2000
DNA topoisomerases catalyze topological changes in DNA that are essential for normal cell cycle progression and therefore they are a preferential target for the development of anticancer drugs.
Loredana Bassi, Fabrizio Palitti
doaj   +1 more source

Fluorescently labeled circular DNA molecules for DNA topology and topoisomerases [PDF]

open access: yes, 2016
DNA topology plays essential roles in several fundamental biological processes, such as DNA replication, recombination, and transcription. Typically agarose gel electrophoresis is employed to study DNA topology.
Berrido, Andrea   +5 more
core   +1 more source

DNA-Stimulated Liquid-Liquid phase separation by eukaryotic topoisomerase ii modulates catalytic function

open access: yeseLife, 2022
Type II topoisomerases modulate chromosome supercoiling, condensation, and catenation by moving one double-stranded DNA segment through a transient break in a second duplex.
Joshua Jeong   +4 more
doaj   +1 more source

Determination of the Primary Molecular Target of 1,2,4-Triazole-Ciprofloxacin Hybrids [PDF]

open access: yes, 2015
We have synthesized and examined the antibacterial activity, toxicity and affinity towards bacterial type II topoisomerases of a series of 1,2,4-triazole-ciprofloxacin hybrids.
Agata Paneth   +12 more
core   +2 more sources

DNA topoisomerases in mtDNA maintenance and ageing.

open access: yesExperimental Gerontology, 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
S. Sobek, F. Boege
semanticscholar   +1 more source

DNA topoisomerase inhibitors: biflavonoids from Ouratea species

open access: yesBrazilian Journal of Medical and Biological Research, 2002
Topoisomerase inhibitors are agents with anticancer activity. 7"-O-Methyl-agathisflavone (I) and amentoflavone (II) are biflavonoids and were isolated from the Brazilian plants Ouratea hexasperma and O. semiserrata, respectively.
N.F. Grynberg   +6 more
doaj   +1 more source

Clerocidin selectively modifies the gyrase-DNA gate to induce irreversible and reversible DNA damage [PDF]

open access: yes, 2008
Clerocidin (CL), a microbial diterpenoid, reacts with DNA via its epoxide group and stimulates DNA cleavage by type II DNA topoisomerases. The molecular basis of CL action is poorly understood.
Binaschi   +34 more
core   +1 more source

An Experimental Framework to Examine the Influence of Promoter Architecture and Genomic Context on Gene Expression [PDF]

open access: yes, 2020
Transcription is a fundamental process of gene expression. Information stored in DNA is transcribed into different types of mobile RNA, which play a role in various essential processes of the cell, e.g. translation.
Klein, Carlo Anton
core   +1 more source

Controlled rotation mechanism of DNA strand exchange by the Hin serine recombinase. [PDF]

open access: yes, 2016
DNA strand exchange by serine recombinases has been proposed to occur by a large-scale rotation of halves of the recombinase tetramer. Here we provide the first direct physical evidence for the subunit rotation mechanism for the Hin serine invertase ...
Johnson, Reid C   +4 more
core   +1 more source

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