Results 31 to 40 of about 39,952 (313)

G-Quadruplexes in the Archaea Domain [PDF]

Biomolecules, 2020
The importance of unusual DNA structures in the regulation of basic cellular processes is an emerging field of research. Amongst local non-B DNA structures, G-quadruplexes (G4s) have gained in popularity during the last decade, and their presence and functional relevance at the DNA and RNA level has been demonstrated in a number of viral, bacterial ...
Václav Brázda, Yu Luo, Martin Bartas, Patrik Kaura, Otilia Porubiaková, Jiří Šťastný, Petr Pečinka, Daniela Verga, Violette Da Cunha, Tomio S. Takahashi, Patrick Forterre, Hannu Myllykallio, Miroslav Fojta, Jean-Louis Mergny   +13 more
openaire   +6 more sources

Transition Mutations in the hTERT Promoter Are Unrelated to Potential i-motif Formation in the C-Rich Strand

Biomolecules, 2023
Increased expression of the human telomere reverse transcriptase (hTERT) in tumors promotes tumor cell survival and diminishes the survival of patients.
James W. Conrad, Mark L. Sowers, Dianne Y. Yap, Ellie Cherryhomes, B. Montgomery Pettitt, Kamil Khanipov, Lawrence C. Sowers   +6 more
doaj   +1 more source

Ligand selectivity in stabilising tandem parallel folded G-quadruplex motifs in human telomeric DNA sequences [PDF]

, 2014
Biophysical studies of ligand interactions with three human telomeric repeat sequences (d(AGGG(TTAGGG)n, n = 3, 7 and 11)) show that an oxazole-based ‘click’ ligand, which induces parallel folded quadruplexes, preferentially stabilises longer telomeric ...
Alex R. O. Cousins, Balkwill, Bejugam, Biffi, Brooks, De Armond, De Cian, Dougal Ritson, Feng, Fernando, Fletcher, Garner, Grand, Haider, Huppert, John E. Moses, Kim, Kumari, Lingner, Lipps, Malcolm F. G. Stevens, Mark S. Searle, Mergny, Moorhouse, Moorhouse, Nakamura, Neidle, Pallavi Sharma, Petraccone, Petraccone, Randall, Renciuk, Ritson, Searle, Siddiqui-Jain, Todd, Vorlickova, Wang, Xu   +38 more
core   +1 more source

GW-2974 and SCH-442416 modulators of tyrosine kinase and adenosine receptors can also stabilize human telomeric G-quadruplex DNA.

PLoS ONE, 2022
GW-2974 is a potent tyrosine kinase receptor inhibitor while SCH-442416 is a potent adenosine receptors' antagonist with high selectivity towards human adenosine A2A receptor over other adenosine receptors. The two compounds were reported to possess anti-
Alaa A Salem, Ismail A El Haty, Mohammad A Ghattas   +2 more
doaj   +3 more sources

Control of the polyamine biosynthesis pathway by G2-quadruplexes

eLife, 2018
G-quadruplexes are naturally-occurring structures found in RNAs and DNAs. Regular RNA G-quadruplexes are highly stable due to stacked planar arrangements connected by short loops.
Helen Louise Lightfoot, Timo Hagen, Antoine Cléry, Frédéric Hai-Trieu Allain, Jonathan Hall   +4 more
doaj   +1 more source

Rudimentary G-Quadruplex-Based Telomere Capping In Saccharomyces Cerevisiae [PDF]

, 2011
Telomere capping conceals chromosome ends from exonucleases and checkpoints, but the full range of capping mechanisms is not well defined. Telomeres have the potential to form G-quadruplex (G4) DNA, although evidence for telomere G4 DNA function in vivo ...
A De Cian, A Piazza, A Risitano, A Risitano, A Sfeir, AC Vallur, AN Lane, B Garvik, B Saccà, BR Linger, C Frei, C Ribeyre, CI Nugent, D Bonetti, D Gomez, DA Bernstein, David C Schultz, David Monchaud, EA Venczel, EP Mimitou, F Brad Johnson, H Ding, H Fernando, IM Pedroso, J Kypr, J Lin, J Lu, J Ren, J-L Mergny, JA Cobb, Jasmine S Smith, JD Frantz, John M Nicoludis, JR Mullen, JS Smith, K Förstemann, K Paeschke, L Maringele, L Oganesian, Lara Abramowitz, LD Nelson, Liliya A Yatsunyk, LL Sandell, M Downey, Marie-Paule Teulade-Fichou, Mark S Garcia, MD Huber, MD Huber, MD Vodenicharov, MK Zubko, MK Zubko, ML Kozak, ML Zhang, MW Van Dyke, N Grandin, N Hayashi, P Phatak, PM Watt, Qijun Chen, R Giraldo, Ramon Kranaster, RJ Michelson, S Burge, SG Addinall, SG Hershman, Shankar Balasubramanian, TR Salas, W Palm, Y Li, Y-C Tsai, Z Liu, Z Zhu   +71 more
core   +2 more sources

A role for non-B DNA forming sequences in mediating microlesions causing human inherited disease [PDF]

, 2015
Missense/nonsense mutations and micro-deletions/micro-insertions of
Aguilera, Bacolla, Bacolla, Bacolla, Bacolla, Bacolla, Ball, Belotserkovskii, Bharti, Biffi, Bochman, Boyer, Brooks, Bzymek, Cebrián, Chen, Chen, Chuzhanova, Clark, Cooper, Cooper, Cooper, De, Ding, Dong, Du, Fleming, Greenblatt, Guo, Gusev, Iyer, Jain, Jain, Javadekar, Jeitany, Kaushik Tiwari, Kondrashov, Kouzine, Kregten, Kunkel, Kunkel, Kunkel, Lam, Lee, Levinson, León-Ortiz, Lopes, Lovett, Lu, Majumdar, Margolin, Morikawa, Mort, Mukherjee, Mukherjee, Murat, Nambiar, Patel, Raghavan, Reeves, Rosche, Rouleau, Sanders, Schofield, Sen, Sharma, Sinden, Sinden, Spurlock, Stenson, Stenson, Tappino, Vasquez, Verdin, Wang, Wells, Wickramasinghe, Williams, Wu, Wu, Wu, Wu, Yang, You, Zhao, Zhao, Zhou   +86 more
core   +1 more source

1,1’,1’’,1’’’-[Porphyrin-5,10,15,20-tetrayltetrakis(3,1-phenylenemethylene)]tetraquinolinium Tetrabromide

Molbank, 2010
Cationic porphyrins interact strongly with guanine quadruplex DNA (G-quadruplex). We herein report the preparation of a cationic porphyrin bearing quinolinium side arms, 1,1’,1’’,1’’’-[porphyrin-5,10,15,20-tetrayltetrakis(3,1-phenylenemethylene)]­tetra ...
Satoshi Fujii, Tadayuki Uno, Takeshi Yamashita, Yoshinobu Ishikawa   +3 more
doaj   +1 more source

G-quadruplexes and G-quadruplex ligands: targets and tools in antiviral therapy [PDF]

, 2018
G-quadruplexes (G4s) are non-canonical nucleic acids secondary structures that form within guanine-rich strands of regulatory genomic regions. G4s have been extensively described in the human genome, especially in telomeres and oncogene promoters; in ...
Richter, Sara N, Ruggiero, Emanuela
core   +1 more source

I-MOTIF DNA: SIGNIFICANCE AND FUTURE PROSPECTIVE [PDF]

Exploratory Animal and Medical Research, 2020
Since the first report of its existence emerged in the early 1990s, i-motif DNA has gained much interest among the other non-canonical DNA structures in recent years.
Sushmita Nautiyal, Vishal Rai, Sudipta Bhat, Ravi Kumar, Mudasir Mohd Rather, M.Sankar   +5 more
doaj