Results 1 to 10 of about 53,634 (224)

Comparative Analysis of 1,9-Dimethyl-Methylene Blue and Toluidine Blue Interactions with ct-DNA, G-Quadruplex DNA, and ssDNA

open access: yesTurkish Journal of Agriculture: Food Science and Technology
This study presents a comprehensive investigation into the interactions of two distinct synthetic dyes—1,9-Dimethyl-Methylene Blue and Toluidine Blue —with different DNA structures, namely calf thymus DNA (ct-DNA), G-quadruplex DNA, and single stranded ...
Efkan Bağda, Didem Duman
doaj   +1 more source

Rational Design of Porous Poly(ethylene glycol) Films as a Matrix for ssDNA Immobilization and Hybridization

open access: yesBioengineering, 2022
Poly(ethylene glycol) (PEG) films, fabricated by thermally induced crosslinking of amine- and epoxy-terminated four-arm STAR-PEG precursors, were used as porous and bioinert matrix for single-stranded DNA (ssDNA) immobilization and hybridization.
Zhiyong Zhao   +2 more
doaj   +1 more source

Coordinated Binding of Single-Stranded and Double-Stranded DNA by UvsX Recombinase. [PDF]

open access: yesPLoS ONE, 2013
Homologous recombination is important for the error-free repair of DNA double-strand breaks and for replication fork restart. Recombinases of the RecA/Rad51 family perform the central catalytic role in this process.
Robyn L Maher, Scott W Morrical
doaj   +1 more source

Interdomain dynamics in human Replication Protein A regulates kinetics and thermodynamics of its binding to ssDNA

open access: yesPLoS ONE, 2023
Human Replication Protein A (hRPA) is a multidomain protein that interacts with ssDNA intermediates to provide the latter much-needed stability during DNA metabolism and maintain genomic integrity.
Sangeeta, Arnab Bhattacherjee
doaj  

Negative supercoiling creates single-stranded patches of DNA that are substrates for AID-mediated mutagenesis. [PDF]

open access: yesPLoS Genetics, 2012
Antibody diversification necessitates targeted mutation of regions within the immunoglobulin locus by activation-induced cytidine deaminase (AID). While AID is known to act on single-stranded DNA (ssDNA), the source, structure, and distribution of these ...
Jahan-Yar Parsa   +8 more
doaj   +1 more source

APE1 recruits ATRIP to ssDNA in an RPA-dependent and -independent manner to promote the ATR DNA damage response

open access: yeseLife, 2023
Cells have evolved the DNA damage response (DDR) pathways in response to DNA replication stress or DNA damage. In the ATR-Chk1 DDR pathway, it has been proposed that ATR is recruited to RPA-coated single-stranded DNA (ssDNA) by direct ATRIP-RPA ...
Yunfeng Lin   +5 more
doaj   +1 more source

Construction of ssDNA-Attached LR-Chimera Involving Z-DNA for ZBP1 Binding Analysis

open access: yesMolecules, 2022
The binding of proteins to Z-DNA is hard to analyze, especially for short non-modified DNA, because it is easily transferred to B-DNA. Here, by the hybridization of a larger circular single-stranded DNA (ssDNA) with a smaller one, an LR-chimera ...
Lin Li, Ran An, Xingguo Liang
doaj   +1 more source

Managing Single-Stranded DNA during Replication Stress in Fission Yeast

open access: yesBiomolecules, 2015
Replication fork stalling generates a variety of responses, most of which cause an increase in single-stranded DNA. ssDNA is a primary signal of replication distress that activates cellular checkpoints. It is also a potential source of genome instability
Sarah A. Sabatinos, Susan L. Forsburg
doaj   +1 more source

Archaeal Orc1 protein interacts with T-rich single-stranded DNA

open access: yesBMC Research Notes, 2021
Objective The ability to form nucleoprotein complexes is a fundamental activity of DNA replication initiation proteins. They bind within or nearby the region of replication origin what results in melting of a double-stranded DNA (dsDNA) and formation of ...
Katarzyna Wegrzyn, Igor Konieczny
doaj   +1 more source

Multi-step processing of replication stress-derived nascent strand DNA gaps by MRE11 and EXO1 nucleases

open access: yesNature Communications, 2023
Accumulation of single stranded DNA (ssDNA) gaps in the nascent strand during DNA replication has been associated with cytotoxicity and hypersensitivity to genotoxic stress, particularly upon inactivation of the BRCA tumor suppressor pathway.
Anastasia Hale   +4 more
doaj   +1 more source

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