Results 31 to 40 of about 119,528 (240)
Hsmar1 transposition is sensitive to the topology of the transposon donor and the target. [PDF]
PLoS ONE, 2013 Hsmar1 is a member of the Tc1-mariner superfamily of DNA transposons. These elements mobilize within the genome of their host by a cut-and-paste mechanism.
Corentin Claeys Bouuaert +1 more
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Topological entropy of DNA sequences [PDF]
Bioinformatics, 2011 Abstract Motivation: Topological entropy has been one of the most difficult to implement of all the entropy-theoretic notions. This is primarily due to finite sample effects and high-dimensionality problems. In particular, topological entropy has been implemented in previous literature to conclude that entropy of exons is higher than of ...
openaire +3 more sources
Nature Communications, 2023 Genome topology is tied to R-loop formation and genome stability. However, the regulatory mechanism remains to be elucidated. By establishing a system to sense the connections between R-loops and genome topology states, we show that inhibiting DNA ...
Qin Li +7 more
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Structural basis for allosteric regulation of Human Topoisomerase IIα
Nature Communications, 2021 Type 2 DNA topoisomerases (Top2) regulates DNA topology during DNA replication, transcription, and chromosome segregation. Here the authors describe a complete structure of the catalytic core of the human Topo IIα bound to DNA and etoposide, providing ...
Arnaud Vanden Broeck +5 more
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DNA topology: Topological transformation of DNA by reaction of cisplatin-DNA-core histone complexes with human DNA topoisomerase [PDF]
Nucleic Acids Symposium Series, 2002 Cis-diamminedichloroplatinium(II), an active antitumor agent binds to core-histone -SV40 DNA complexes prepared by reaction of DNA with core-histone, and alters the fiber-like structure into the loosened structure. In order to model the cisplatin-modified chromatin complexes in cell, the complexes were reacted with human DNA topo II.
Shigeki, Kobayashi +4 more
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Archaea: A Gold Mine for Topoisomerase Diversity
Frontiers in Microbiology, 2021 The control of DNA topology is a prerequisite for all the DNA transactions such as DNA replication, repair, recombination, and transcription. This global control is carried out by essential enzymes, named DNA-topoisomerases, that are mandatory for the ...
Florence Garnier +6 more
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DNA topology and topoisomerases [PDF]
Biochemistry and Molecular Biology Education, 2009 AbstractDNA is essentially an extremely long double‐stranded rope in which the two strands are wound about one another. As a result, topological properties of the genetic material, including DNA underwinding and overwinding, knotting, and tangling profoundly influence virtually every major nucleic acid process.
Joseph E, Deweese +2 more
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Physical Characterization of Gemini Surfactant-Based Synthetic Vectors for the Delivery of Linear Covalently Closed (LCC) DNA Ministrings. [PDF]
PLoS ONE, 2015 In combination with novel linear covalently closed (LCC) DNA minivectors, referred to as DNA ministrings, a gemini surfactant-based synthetic vector for gene delivery has been shown to exhibit enhanced delivery and bioavailability while offering a ...
Chi Hong Sum +3 more
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Applications of topology to DNA [PDF]
Banach Center Publications, 1998 0. Some preliminaries. Many biological processes affect topological properties of DNA. Duplex DNA consists of two backbone strands wound about each other in a righthanded helical fashion. Each strand consists of a sugar phosphate backbone with a nitrogenous base attached to each sugar. The four possible bases are adenine (A), guanine (G), cytosine (C),
De Sumners, Isabel Darcy
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TEX264 coordinates p97- and SPRTN-mediated resolution of topoisomerase 1-DNA adducts
Nature 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
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