Results 131 to 140 of about 2,162,763 (370)

Dynamics of phosphodiester synthesis by DNA ligase [PDF]

open access: yesProceedings of the National Academy of Sciences, 2008
Ligases are essential actors in DNA replication, recombination, and repair by virtue of their ability to seal breaks in the phosphodiester backbone. Ligation proceeds through a nicked DNA-adenylate intermediate (AppDNA), which must be sealed quickly to avoid creating a potentially toxic lesion.
Aurélien Crut   +4 more
openaire   +3 more sources

3D Microtumors Representing Ovarian Cancer Minimal Residual Disease Respond to the Fatty Acid Oxidation Inhibitor Perhexiline

open access: yesAdvanced Healthcare Materials, EarlyView.
Minimal residual disease (MRD) leads to cancer relapse and poor survival in ovarian cancer. The lack of representative 3D models limits therapy development. The microfluidics‐based high throughput 3D microtumor platform described here generates clinically‐relevant MRD models. The 3D microtumors recapitulate the molecular signatures of MRD from patients.
Xingyun Yang   +14 more
wiley   +1 more source

Characterisation of the SUMO-like domains of Schizosaccharomyces pombe Rad60 [PDF]

open access: yes, 2010
The S. pombe Rad60 protein is required for the repair of DNA double strand breaks, recovery from replication arrest, and is essential for cell viability.
Anja-Katrin Bielinsky   +5 more
core   +8 more sources

Mutational phospho-mimicry reveals a regulatory role for the XRCC4 and XLF C-terminal tails in modulating DNA bridging during classical non-homologous end joining

open access: yeseLife, 2017
XRCC4 and DNA Ligase 4 (LIG4) form a tight complex that provides DNA ligase activity for classical non-homologous end joining (the predominant DNA double-strand break repair pathway in higher eukaryotes) and is stimulated by XLF.
Davide Normanno   +5 more
doaj   +1 more source

Splicing Systems from Past to Future: Old and New Challenges [PDF]

open access: yesarXiv, 2015
A splicing system is a formal model of a recombinant behaviour of sets of double stranded DNA molecules when acted on by restriction enzymes and ligase. In this survey we will concentrate on a specific behaviour of a type of splicing systems, introduced by P\u{a}un and subsequently developed by many researchers in both linear and circular case of ...
arxiv  

Capacity of DNA Data Embedding Under Substitution Mutations [PDF]

open access: yes, 2011
A number of methods have been proposed over the last decade for encoding information using deoxyribonucleic acid (DNA), giving rise to the emerging area of DNA data embedding. Since a DNA sequence is conceptually equivalent to a sequence of quaternary symbols (bases), DNA data embedding (diversely called DNA watermarking or DNA steganography) can be ...
arxiv   +1 more source

Combinatory effect of BRCA1 and HERC2 expression on outcome in advanced non-small-cell lung cancer [PDF]

open access: yes, 2016
BACKGROUND: BRCA1 is a main component of homologous recombination and induces resistance to platinum in preclinical models. It has been studied as a potential predictive marker in lung cancer. Several proteins modulate the function of BRCA1.
Bonanno, Laura   +14 more
core   +8 more sources

Human Mre11/Human Rad50/Nbs1 and DNA Ligase IIIα/XRCC1 Protein Complexes Act Together in an Alternative Nonhomologous End Joining Pathway*

open access: yesJournal of Biological Chemistry, 2011
Recent studies have implicated a poorly defined alternative pathway of nonhomologous end joining (alt-NHEJ) in the generation of large deletions and chromosomal translocations that are frequently observed in cancer cells. Here, we describe an interaction
J. Della-Maria   +6 more
semanticscholar   +1 more source

High‐Resolution Patterned Delivery of Chemical Signals From 3D‐Printed Picoliter Droplet Networks

open access: yesAdvanced Materials, EarlyView.
3D‐printed picoliter droplet networks have been fabricated that control gene expression in bacterial populations by releasing chemical signals with precise spatial definition and high temporal resolution. This system of effector release is widely applicable, offering diverse applications in biology and medicine.
Jorin Riexinger   +7 more
wiley   +1 more source

The phage T4 DNA ligase mediates bacterial chromosome DSBs repair as single component non-homologous end joining

open access: yesSynthetic and Systems Biotechnology, 2019
DNA double-strand breaks (DSBs) are one of the most lethal forms of DNA damage that is not efficiently repaired in prokaryotes. Certain microorganisms can handle chromosomal DSBs using the error-prone non-homologous end joining (NHEJ) system and ...
Tianyuan Su   +6 more
doaj  

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