Results 11 to 20 of about 13,927,214 (311)

G-Quadruplexes and Their Ligands: Biophysical Methods to Unravel G-Quadruplex/Ligand Interactions [PDF]

open access: yesPharmaceuticals, 2021
Progress in the design of G-quadruplex (G4) binding ligands relies on the availability of approaches that assess the binding mode and nature of the interactions between G4 forming sequences and their putative ligands.
Tiago Santos   +3 more
semanticscholar   +5 more sources

Characterization of G-Quadruplexes in Enterovirus A71 Genome and Their Interaction with G-Quadruplex Ligands

open access: yesMicrobiology Spectrum, 2022
Human enteroviruses cause many diseases; however, there is no specific therapeutic drug. G-quadruplex is an atypical secondary structure formed in the guanine rich region of DNA or RNA, which can exist in the viral genome.
Lu Lv, Leiliang Zhang
doaj   +3 more sources

G-quadruplex–R-loop interactions and the mechanism of anticancer G-quadruplex binders [PDF]

open access: yesNucleic Acids Research, 2020
Genomic DNA and cellular RNAs can form a variety of non-B secondary structures, including G-quadruplex (G4) and R-loops. G4s are constituted by stacked guanine tetrads held together by Hoogsteen hydrogen bonds and can form at key regulatory sites of ...
G. Miglietta, Marco Russo, G. Capranico
semanticscholar   +4 more sources

G-Quadruplexes in the Archaea Domain [PDF]

open access: yesBiomolecules, 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   +13 more
openaire   +6 more sources

G-quadruplexes and helicases [PDF]

open access: yesNucleic Acids Research, 2016
Guanine-rich DNA strands can fold in vitro into non-canonical DNA structures called G-quadruplexes. These structures may be very stable under physiological conditions. Evidence suggests that G-quadruplex structures may act as 'knots' within genomic DNA, and it has been hypothesized that proteins may have evolved to remove these structures.
Mendoza, Oscar   +4 more
openaire   +3 more sources

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

open access: yesPLoS 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   +2 more
doaj   +3 more sources

Structural insights and shedding light on preferential interactions of dietary flavonoids with G-quadruplex DNA structures: A new horizon

open access: yesHeliyon, 2023
G-quadruplex, a structurally unique structure in nucleic acids present all throughout the human genome, has sparked great attention in therapeutic investigations. Targeting G-quadruplex structure is a new strategy for the drug development. Flavonoids are
Sagar Bag   +2 more
doaj   +1 more source

RNA G-quadruplex in TMPRSS2 reduces SARS-CoV-2 infection

open access: yesNature Communications, 2022
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection continues to have devastating consequences worldwide. Recently, great efforts have been made to identify SARS-CoV-2 host factors, but the regulatory mechanisms of these host molecules,
Geng Liu   +11 more
semanticscholar   +1 more source

Binding-Induced Diversity of a Human Telomeric G-Quadruplex Stability Phase Space

open access: yesPharmaceuticals, 2022
The structural polymorphism of G-quadruplex nucleic acids is an important factor in their recognition by proteins and small-molecule ligands. However, it is not clear why the binding of several ligands alters G-quadruplex topology.
Domen Oblak   +3 more
doaj   +1 more source

RNA G-quadruplex structure contributes to cold adaptation in plants

open access: yesbioRxiv, 2022
Nucleotide composition is suggested to infer gene functionality and ecological adaptation of species to distinct environments. However, the underlying biological function of nucleotide composition dictating environmental adaptations is largely unknown ...
Xiaofei Yang   +9 more
semanticscholar   +1 more source

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