Results 151 to 160 of about 2,162,763 (370)

Crucial roles for DNA ligase III in mitochondria but not in XRCC1-dependent repair

open access: yesNature, 2011
Mammalian cells have three ATP-dependent DNA ligases, which are required for DNA replication and repair. Homologues of ligase I (Lig1) and ligase IV (Lig4) are ubiquitous in Eukarya, whereas ligase III (Lig3), which has nuclear and mitochondrial forms ...
Deni̇z Şi̇mşek   +9 more
semanticscholar   +1 more source

RNF112 Facilitates Ubiquitin‐Mediated Degradation of c‐Myc, Suppressing Proliferation, Migration and Lipid Synthesis in Bladder Cancer

open access: yesAdvanced Science, EarlyView.
RNF112, an E3 ubiquitin ligase, is markedly reduced in bladder cancer (BLCA). It curbs BLCA cell proliferation, migration, and lipid production primarily by enhancing ubiquitin‐dependent degradation of c‐Myc. This degradation inhibits c‐Myc's role in upregulating ACLY, a crucial enzyme for lipid synthesis, highlighting RNF112's potential as a ...
Kangping Xiong   +13 more
wiley   +1 more source

Genome Mining Enabled by Biosynthetic Characterization Uncovers a Class of Benzoxazolinate‐Containing Natural Products in Diverse Bacteria

open access: yesAngewandte Chemie, Volume 134, Issue 51, December 19, 2022., 2022
Benzoxazolinate is a rare bis‐heterocyclic moiety that interacts with proteins and DNA. It was found that a putative acyl AMP‐ligase mediates the last cyclization step to afford benzoxazolinate. The enzyme was then used as a probe for genome mining, which led to the discovery of a new class of benzoxazolinate‐containing compounds in diverse bacteria ...
Yi‐Ming Shi   +12 more
wiley   +2 more sources

DNA-based Artificial Nanostructures: Fabrication, Properties, and Applications [PDF]

open access: yesarXiv, 2005
Table of Content 1. Introduction 2. DNA fundamentals 3. Attachment of DNA to surface 4. Fabrication of nanostructures using DNA 4.1 Nanostructures of pure DNA 4.2 DNA-based assembly of metal nanoparticles 4.3 Construction of semiconductor particle arrays using DNA 4.4 DNA-directed nanowires 4.5 DNA-functionalized carbon nanotubes 4 ...
arxiv  

One ring to rule them all? Another cellular responsibility for PCNA [PDF]

open access: yes, 2006
To prevent duplication or loss of genomic regions during DNA replication, it is essential that the entire genome is copied precisely once every S phase. Cells achieve this by mutually exclusive regulation of origin firing and licensing. A crucial protein
Arentson   +22 more
core   +1 more source

Kinetic Mechanism of Human DNA Ligase I Reveals Magnesium-dependent Changes in the Rate-limiting Step That Compromise Ligation Efficiency*

open access: yesJournal of Biological Chemistry, 2011
DNA ligase I (LIG1) catalyzes the ligation of single-strand breaks to complete DNA replication and repair. The energy of ATP is used to form a new phosphodiester bond in DNA via a reaction mechanism that involves three distinct chemical steps: enzyme ...
Mark Taylor   +3 more
semanticscholar   +1 more source

Genome‐Wide Silencer Screening Reveals Key Silencer Modulating Reprogramming Efficiency in Mouse Induced Pluripotent Stem Cells

open access: yesAdvanced Science, EarlyView.
This study utilized Ss‐STARR‐seq to construct a genome‐wide silencer map of mouse cells and elucidated the fundamental characteristics of these silencers. These silencers exist in a cell‐specific manner and exhibit unique epigenetic modifications. Through functional experiments, we also discovered that these silencers can regulate gene expression and ...
Xiusheng Zhu   +12 more
wiley   +1 more source

RNAlater facilitates remote sampling of aquaculture Atlantic salmon liver for proteomic analysis

open access: yesAquaculture, Fish and Fisheries, Volume 2, Issue 6, Page 578-586, December 2022., 2022
Graphical Abstract Proteomes of similar sizes were obtained in samples preserved by snap‐freezing or RNAlater. Proteins involved in transcriptional and translational machinery were affected in RNAlater stored samples. Abundance of published markers for heat and oxidative stress was not affected by snap‐freezing or RNAlater.
Anca G. Rusu   +6 more
wiley   +1 more source

Dynamics of Cell Fate Decisions during Chemically Induced Multi‐Lineage Trans‐Differentiation at Single‐Cell Level

open access: yesAdvanced Science, EarlyView.
A critical aspect of chromosomal remodeling in small molecule‐induced multilineage trans‐differentiation(iMT) is elucidated. A dynamic atlas spanning over 35 days profiles terminal trans‐differentiated cells, which reverted to a more youthful state. This study reveals parallels between iMT and other cell fate determination processes, emphasizing an ...
Weigao E   +13 more
wiley   +1 more source

Water-soluble version of SCR7-pyrazine inhibits DNA repair and abrogates tumor cell proliferation

open access: yesJournal of Radiation and Cancer Research, 2019
Aim: Mammalian DNA Ligases play pivotal role in processes such as DNA replication, recombination, and repair, which qualifies them as potent therapeutic targets to eradicate cancer cells.
Monica Pandey   +12 more
doaj   +1 more source

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