Results 41 to 50 of about 1,521,597 (298)

Nascent DNA Proteomics Reveals a Chromatin Remodeler Required for Topoisomerase I Loading at Replication Forks

open access: yesCell Reports, 2016
During transcription and DNA replication, the DNA template is overwound ahead of RNA and DNA polymerases and relaxed by DNA topoisomerases. Inhibitors of topoisomerases are potent anti-cancer agents.
Cyril Ribeyre   +6 more
doaj   +1 more source

The broken MLL gene is frequently located outside the inherent chromosome territory in human lymphoid cells treated with DNA topoisomerase II poison etoposide. [PDF]

open access: yesPLoS ONE, 2013
The mixed lineage leukaemia (MLL) gene is frequently rearranged in secondary leukaemias, in which it could fuse to a variety of different partners.
Sergey I Glukhov   +5 more
doaj   +1 more source

TEX264 coordinates p97- and SPRTN-mediated resolution of topoisomerase 1-DNA adducts

open access: yesNature Communications, 2020
Eukaryotic topoisomerase 1 (TOP1) regulates DNA topology to ensure efficient DNA replication and transcription. Here, the authors reveal insights into the molecular resolution of topoisomerase 1-DNA adducts by TEX264, p97 and SPRTN.
John Fielden   +16 more
doaj   +1 more source

Application of a novel microtitre plate-based assay for the discovery of new inhibitors of DNA gyrase and DNA topoisomerase VI.

open access: yesPLoS ONE, 2013
DNA topoisomerases are highly exploited targets for antimicrobial drugs. The spread of antibiotic resistance represents a significant threat to public health and necessitates the discovery of inhibitors that target topoisomerases in novel ways.
James A Taylor   +4 more
doaj   +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]

open access: yes, 2012
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

Recent developments in topoisomerase-targeted cancer chemotherapy

open access: yesActa Pharmaceutica Sinica B, 2018
The DNA topoisomerase enzymes are essential to cell function and are found ubiquitously in all domains of life. The various topoisomerase enzymes perform a wide range of functions related to the maintenance of DNA topology during DNA replication, and ...
KirkE. Hevener   +4 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.
Fisher, LM   +7 more
core   +1 more source

Topoisomerase activity is linked to altered nucleosome positioning and transcriptional regulation in the fission yeast fbp1 gene.

open access: yesPLoS ONE, 2020
Chromatin structure, including nucleosome positioning, has a fundamental role in transcriptional regulation through influencing protein-DNA interactions.
Ryuta Asada   +3 more
doaj   +1 more source

Identification of anziaic acid, a lichen depside from Hypotrachyna sp., as a new topoisomerase poison inhibitor. [PDF]

open access: yesPLoS ONE, 2013
Topoisomerase inhibitors are effective for antibacterial and anticancer therapy because they can lead to the accumulation of the intermediate DNA cleavage complex formed by the topoisomerase enzymes, which trigger cell death.
Bokun Cheng   +6 more
doaj   +1 more source

A role for topoisomerase II alpha in chromosome damage in human cell lines [PDF]

open access: yes, 2010
Human response to ionising radiation (IR) shows a wide variation. This is most clearly seen in the radiation-response of cells as measured by frequencies of chromosomal aberrations.
Terry, Samantha Y.A.
core   +2 more sources

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