Results 71 to 80 of about 812,933 (320)

Evolutionary interplay between viruses and R‐loops

FEBS Letters, EarlyView.
Viruses interact with specialized nucleic acid structures called R‐loops to influence host transcription, epigenetic states, latency, and immune evasion. This Perspective examines the roles of R‐loops in viral replication, integration, and silencing, and how viruses co‐opt or avoid these structures.
Zsolt Karányi, Zita Képes, Zoltán Szabó, Eszter Csoma, Lóránt Székvölgyi   +4 more
wiley   +1 more source

Rolling circle transcription of ribozymes from promoterless single-stranded DNA nanocircles in mammalian cells [Ribozimlerin, promotorsuz tek-iplikli DNA çemberlerinin rolling circle transkripsiyonu ile memeli hücrelerinde üretimi] [PDF]

Türk Biyokimya Dergisi, 2006
Self-processing hairpin ribozymes have been synthesized from promoterless singlestranded DNA circles (73 nt) within mammalian cells. Following lipid-mediated transient transfection, DNA circles were efficiently internalized by mouse L cells (OST7–1 ...
Attila A. Seyhan
doaj  

Efficient termination of nuclear lncRNA transcription promotes mitochondrial genome maintenance

eLife, 2018
Most DNA in the genomes of higher organisms does not code for proteins. RNA Polymerase II (Pol II) transcribes non-coding DNA into long non-coding RNAs (lncRNAs), but biological roles of lncRNA are unclear.
Dorine Jeanne Mariëtte du Mee, Maxim Ivanov, Joseph Paul Parker, Stephen Buratowski, Sebastian Marquardt   +4 more
doaj   +1 more source

New link between the RNA polymerase II-CTD and replication stress

Molecular & Cellular Oncology, 2021
Conflicts between transcription and replication are a major source of replication stress. Our recent findings show that proper dephosphorylation of Serine 5 in the carboxy-terminal domain (CTD) of DNA-directed RNA polymerase II subunit RPB1 is needed to ...
Helga B. Landsverk, Lise E. Sandquist, Lilli T. E. Bay, Randi G. Syljuåsen   +3 more
doaj   +1 more source

Insights into pegRNA design from editing of the cardiomyopathy‐associated phospholamban R14del mutation

FEBS Letters, EarlyView.
This study reveals how prime editing guide RNA (pegRNA) secondary structure and reverse transcriptase template length affect prime editing efficiency in correcting the phospholamban R14del cardiomyopathy‐associated mutation. Insights support the design of structurally optimized enhanced pegRNAs for precise gene therapy.
Bing Yao, Qiangbing Yang, Christian J.B. Snijders Blok, Mark A. Daniels, Pieter A. Doevendans, Raymond Schiffelers, Joost P.G. Sluijter, Zhiyong Lei   +7 more
wiley   +1 more source

Cyclic nucleotide signaling as a drug target in retinitis pigmentosa

FEBS Letters, EarlyView.
Disruptions in cGMP and cAMP signaling can contribute to retinal dysfunction and photoreceptor loss in retinitis pigmentosa. This perspective examines the mechanisms and evaluates emerging evidence on targeting these pathways as a potential therapeutic strategy to slow or prevent retinal degeneration.
Katri Vainionpää, Ahmed B. Montaser, Henri Leinonen   +2 more
wiley   +1 more source

Dynamic of centromere associated RNAs and the centromere loading of DNA repair proteins in growing oocytes

Frontiers in Genetics, 2023
Mammalian centromeres are generally composed of dispersed repeats and the satellites such as α-satellites in human and major/minor satellites in mouse.
Lin-Li Yang, Lin-Li Yang, Yan-Chu Li, Yan-Chu Li, Tian-Jin Xia, Tian-Jin Xia, Sen Li, Xie Feng, Chao Li, Chao Li, Feng-Yun Xie, Xiang-Hong Ou, Xiang-Hong Ou, Jun-Yu Ma, Jun-Yu Ma   +14 more
doaj   +1 more source

The interaction of RNA polymerase II with non-promoter DNA sites [PDF]

Nucleic Acids Research, 1981
Various complexes formed between purified RNA polymerase II and simian virus 40 DNA have been characterized with respect to rates of formation, rates of dissociation, and initial velocity of RNA synthesis. Two different types of complexes can form on intact DNA templates. One of these is formed rapidly, but is quite labile; the other forms more slowly,
D.Walt Chandler, Jay D. Gralla
openaire   +3 more sources

MET variants with activating N‐lobe mutations identified in hereditary papillary renal cell carcinomas still require ligand stimulation

Molecular Oncology, EarlyView.
MET variants in the N‐lobe of the kinase domain, found in hereditary papillary renal cell carcinoma, require ligand stimulation to promote cell transformation, in contrast to other RTK variants. This suggests that HGF expression in the microenvironment is important for tumor growth in such patients. Their sensitivity to MET inhibitors opens the way for
Célia Guérin, Audrey Vinchent, Marie Fernandes, Isabelle Damour, Agathe Laratte, Rémi Tellier, Gabriella O. Estevam, Jean‐Pascal Meneboo, Céline Villenet, Clotilde Descarpentries, James S. Fraser, Martin Figeac, Alexis B. Cortot, Etienne Rouleau, David Tulasne   +14 more
wiley   +1 more source

DNA-directed termination of mammalian RNA polymerase II

Genes & Development
ABSTRACTThe best-studied mechanism of eukaryotic RNA polymerase II (RNAPII) transcriptional termination involves polyadenylation site-directed cleavage of the nascent RNA. The RNAPII-associated cleavage product is then degraded by XRN2, dislodging RNAPII from the DNA template.
Davidson, Lee, Rouvière, Jérôme O., Sousa-Luís, Rui, Nojima, Takayuki, Proudfoot, Nicholas J., Jensen, Torben Heick, West, Steven   +6 more
openaire   +3 more sources