Results 21 to 30 of about 9,967 (240)
Bacterial type II topoisomerases cleave DNA in a species-specific manner. [PDF]
Nucleic Acids ResAbstract The type II topoisomerases, gyrase and topoisomerase IV, are essential enzymes in nearly all bacteria and are the targets of fluoroquinolones, which are some of the most widely prescribed broad-spectrum antibacterials in clinical use.
Morgan IL +4 more
europepmc +4 more sources
Anaphase chromatid motion: involvement of type II DNA topoisomerases
Biophysical Journal, 1995 Sister chromatids are topologically intertwined at the onset of anaphase: their segregation during anaphase is known to require strand-passing activity by type II DNA topoisomerase. We propose that the removal of the intertwinings involves at the same time the traction of the mitotic spindle and the activity of topoisomerases.
Duplantier, B. +2 more
openaire +3 more sources
Molecular Docking for the Development of Alternative Therapies against Leishmaniasis
Chemistry Proceedings, 2023 Topoisomerases play a pivotal role in regulating the topological structure of DNA during fundamental processes such as transcription, DNA repair, or DNA replication; because of this, topoisomerases are biological targets in pathogenic microorganisms or ...
Juan Diego Guarimata +3 more
doaj +1 more source
Structural study of Topoisomerase IV-DNA-Levofloxacin complexes from Streptococcus pneumoniae [PDF]
E3S Web of Conferences, 2019 S. pneumoniae is an important pathogen causing pulmonary infection, acute otitis media and purulent meningitis in infants and children. Type II topoisomerases are enzymes that play essential roles in DNA replication, chromosome segregation and ...
Wang Xilan
doaj +1 more source
Topological Process of Splitting DNA-Links
Biomath, 2022 A DNA replicon is modeled by a special type of 2-component link, called a DNA-link, in which two circles form a double helix around a trivial center core curve.
Abdul Adheem Mohamad, Tsukasa Yashiro
doaj +1 more source
Data of transcriptional effects of the merbarone-mediated inhibition of TOP2
Data 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
eLife, 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
SUMO: A Swiss Army Knife for Eukaryotic Topoisomerases
Frontiers in Molecular Biosciences, 2022 Topoisomerases play crucial roles in DNA metabolism that include replication, transcription, recombination, and chromatin structure by manipulating DNA structures arising in double-stranded DNA.
Yilun Sun, John L. Nitiss, Yves Pommier
doaj +1 more source
Identification of two novel type II topoisomerase mutations in Enterococcus spp. isolated from a hospital in China [PDF]
Archives of Biological Sciences, 2021 Type II topoisomerases, including DNA gyrase (GyrA) and topoisomerase IV (ParC), contribute to fluoroquinolone resistance in Enterococcus spp. This study investigated the mutational status of the quinolone resistance-determining regions (QRDRs) of GyrA ...
Su Rina +4 more
doaj +1 more source
Transcription facilitated genome-wide recruitment of topoisomerase I and DNA gyrase. [PDF]
PLoS Genetics, 2017 Movement of the transcription machinery along a template alters DNA topology resulting in the accumulation of supercoils in DNA. The positive supercoils generated ahead of transcribing RNA polymerase (RNAP) and the negative supercoils accumulating behind
Wareed Ahmed +5 more
doaj +1 more source