Results 1 to 10 of about 29,743 (315)

DNA G-Quadruplex in Human Telomeres and Oncogene Promoters: Structures, Functions, and Small Molecule Targeting

open access: yesAccounts of Chemical Research, 2022
CONSPECTUS: DNA G-quadruplex secondary structures formed in guanine-rich human telomeres and oncogene promoters are functionally important and have emerged as a promising new class of cancer-specific drug targets. These globular intramolecular structures
Luying Chen   +3 more
semanticscholar   +1 more source

The Potent G-Quadruplex-Binding Compound QN-302 Downregulates S100P Gene Expression in Cells and in an In Vivo Model of Pancreatic Cancer

open access: yesMolecules, 2023
The naphthalene diimide compound QN-302, designed to bind to G-quadruplex DNA sequences within the promoter regions of cancer-related genes, has high anti-proliferative activity in pancreatic cancer cell lines and anti-tumor activity in several ...
Ahmed A. Ahmed   +10 more
doaj   +1 more source

ALU non-B-DNA conformations, flipons, binary codes and evolution [PDF]

open access: yesRoyal Society Open Science, 2020
ALUs contribute to genetic diversity by altering DNA's linear sequence through retrotransposition, recombination and repair. ALUs also have the potential to form alternative non-B-DNA conformations such as Z-DNA, triplexes and quadruplexes that alter the
Alan Herbert
doaj   +1 more source

Development of a quadruplex PCR amplicon next generation sequencing assay for detection and differentiation of Bartonella spp.

open access: yesFrontiers in Microbiology, 2023
The genus Bartonella includes a group of species that are associated with a wide range of mammalian species, including human. It is challenging to detect all Bartonella species using a single molecular target due to its high genetic diversity.
Ying Bai   +3 more
doaj   +1 more source

G-quadruplex targeting chemical nucleases as a nonperturbative tool for analysis of cellular G-quadruplex DNA

open access: yesiScience, 2021
Summary: G-quadruplex structures are associated with various biological activities, while in vivo evidence is essential to confirm the formation of G-quadruplexes inside cells.
Zhen Yu   +2 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

Major Achievements in the Design of Quadruplex-Interactive Small Molecules

open access: yesPharmaceuticals, 2022
Organic small molecules that can recognize and bind to G-quadruplex and i-Motif nucleic acids have great potential as selective drugs or as tools in drug target discovery programs, or even in the development of nanodevices for medical diagnosis. Hundreds
E. Mendes   +4 more
semanticscholar   +1 more source

Tricky Topology: Persistence of Folded Human Telomeric i-Motif DNA at Ambient Temperature and Neutral pH

open access: yesFrontiers in Chemistry, 2020
i-Motifs are four-stranded DNA structures formed from sequences rich in cytosine, held together by hemi-protonated cytosine-cytosine base pairs. These structures have been utilized extensively as pH-switches in DNA-based nanotechnology.
Mahmoud A. S. Abdelhamid   +3 more
doaj   +1 more source

Multistep mechanism of G-quadruplex resolution during DNA replication

open access: yesScience Advances, 2021
DNA helicases DHX36 and FANCJ constitute a previously unknown pathway that resolves G-quadruplex structures during DNA replication.
Koichi Sato   +4 more
semanticscholar   +1 more source

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

Home - About - Disclaimer - Privacy