MRE11 facilitates the removal of human topoisomerase II complexes from genomic DNA [PDF]
Summary Topoisomerase II creates a double-strand break intermediate with topoisomerase covalently coupled to the DNA via a 5′-phosphotyrosyl bond. These intermediate complexes can become cytotoxic protein-DNA adducts and DSB repair at these lesions ...
Ka Cheong Lee +10 more
doaj +2 more sources
Topoisomerase-II mediated biochemical mapping of centromeres and nitroreductase mediated drug metabolism in Trypanosomatids [PDF]
PhDThe protozoan parasites Trypanosoma cruzi and Trypanosoma brucei are the causative agents of Chagas disease and Human African sleeping sickness respectively.
Bot, Christopher
core +4 more sources
Bacterial Topoisomerases, Anti‐Topoisomerases, and Anti‐Topoisomerase Resistance [PDF]
Topoisomerases are ubiquitous enzymes necessary for controlling the interlinking and twisting of DNA molecules. Among the four topoisomerases identified in eubacteria, two, DNA gyrase and topoisomerase IV have been exploited by nature and the pharmaceutical industry as antibacterial targets.
openaire +2 more sources
The impact of the C-terminal domain on the interaction of human DNA topoisomerase II α and β with DNA [PDF]
<b>Background</b> Type II DNA topoisomerases are essential, ubiquitous enzymes that act to relieve topological problems arising in DNA from normal cellular activity.
Caroline A. Austin +7 more
core +2 more sources
Clerocidin interacts with the cleavage complex of Streptococcus pneumoniae topoisomerase IV to induce selective irreversible DNA damage [PDF]
Clerocidin (CL), a diterpenoid natural product, alkylates DNA through its epoxide moiety and exhibits both anticancer and antibacterial activities. We have examined CLaction in the presence of topoisomerase IV from Streptococcus pneumoniae.
Fisher, LM +11 more
core +1 more source
Prospects of Topoisomerase Inhibitors as Promising Anti-Cancer Agents
Topoisomerases are very important enzymes that regulate DNA topology and are vital for biological actions like DNA replication, transcription, and repair. The emergence and spread of cancer has been intimately associated with topoisomerase dysregulation.
Prasanna Anjaneyulu Yakkala +3 more
doaj +1 more source
Topoisomerase IIα promotes activation of RNA polymerase I transcription by facilitating pre-initiation complex formation [PDF]
Type II DNA topoisomerases catalyse DNA double-strand cleavage, passage and re-ligation to effect topological changes. There is considerable interest in elucidating topoisomerase II roles, particularly as these proteins are targets for anti-cancer drugs.
Porter, Andrew C. G. +22 more
core +1 more source
On the viability of Escherichia coli cells lacking DNA topoisomerase I [PDF]
Copyright @ 2012 Stockum et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution,
Lloyd, RG +8 more
core +1 more source
Inhibition of Poly(ADP-Ribose) polymerase enhances the toxicity of 131I-Metaiodobenzylguanidine/Topotecan combination therapy to cells and xenografts that express the noradrenaline transporter [PDF]
Targeted radiotherapy using [131I]meta-iodobenzylguanidine ([131I]MIBG) has produced remissions in some neuroblastoma patients. We previously reported that combining [131I]MIBG with the topoisomerase I (Topo-I) inhibitor topotecan induced long-term DNA ...
McCluskey, Anthony G +7 more
core +4 more sources
The Difficult Case of Crystallization and Structure Solution for the ParC55 Breakage-Reunion Domain of Topoisomerase IV from Streptococcus pneumoniae. [PDF]
BACKGROUND: Streptococcus pneumoniae is the major cause of community-acquired pneumonia and is also associated with bronchitis, meningitis, otitis and sinusitis.
Laponogov, I +17 more
core +1 more source

