MRE11 facilitates the removal of human topoisomerase II complexes from genomic DNA [PDF]
Biology Open, 2012 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
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eLife, 2022 Topoisomerase V is a unique topoisomerase that combines DNA repair and topoisomerase activities. The enzyme has an unusual arrangement, with a small topoisomerase domain followed by 12 tandem (HhH)2 domains, which include 3 AP lyase repair domains.
Amy Osterman, Alfonso Mondragón
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Prospects of Topoisomerase Inhibitors as Promising Anti-Cancer Agents
Pharmaceuticals, 2023 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
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BLM and RMI1 alleviate RPA inhibition of topoIIIα decatenase activity [PDF]
, 2012 RPA is a single-stranded DNA binding protein that physically associates with the BLM complex. RPA stimulates BLM helicase activity as well as the double Holliday junction dissolution activity of the BLM-topoisomerase IIIα complex.
A Bochkarev +39 more
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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
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The impact of the C-terminal domain on the interaction of human DNA topoisomerase II α and β with DNA. [PDF]
PLoS ONE, 2011 BACKGROUND: Type II DNA topoisomerases are essential, ubiquitous enzymes that act to relieve topological problems arising in DNA from normal cellular activity.
Kathryn L Gilroy, Caroline A Austin
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Inhibition of Zn(II) binding type IA topoisomerases by organomercury compounds and Hg(II). [PDF]
PLoS ONE, 2015 Type IA topoisomerase activities are essential for resolving DNA topological barriers via an enzyme-mediated transient single strand DNA break. Accumulation of topoisomerase DNA cleavage product can lead to cell death or genomic rearrangement.
Bokun Cheng +4 more
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CFS-1686 causes cell cycle arrest at intra-S phase by interference of interaction of topoisomerase 1 with DNA. [PDF]
PLoS ONE, 2014 CFS-1686 (chemical name (E)-N-(2-(diethylamino)ethyl)-4-(2-(2-(5-nitrofuran-2-yl)vinyl)quinolin-4-ylamino)benzamide) inhibits cell proliferation and triggers late apoptosis in prostate cancer cell lines.
Ru-Wei Lin +11 more
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Voreloxin is an anticancer quinolone derivative that intercalates DNA and poisons topoisomerase II. [PDF]
PLoS ONE, 2010 Topoisomerase II is critical for DNA replication, transcription and chromosome segregation and is a well validated target of anti-neoplastic drugs including the anthracyclines and epipodophyllotoxins.
Rachael E Hawtin +9 more
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55.2, a phage T4 ORFan gene, encodes an inhibitor of Escherichia coli topoisomerase I and increases phage fitness. [PDF]
PLoS ONE, 2015 Topoisomerases are enzymes that alter the topological properties of DNA. Phage T4 encodes its own topoisomerase but it can also utilize host-encoded topoisomerases. Here we characterized 55.2, a phage T4 predicted ORF of unknown function.
Yves Mattenberger +2 more
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