Results 51 to 60 of about 12,561,590 (387)

Conformational profiling of a G-rich sequence within the c-KIT promoter [PDF]

open access: yes, 2017
G-quadruplexes (G4) within oncogene promoters are considered to be promising anticancer targets. However, often they undergo complex structural rearrangements that preclude a precise description of the optimal target.
Chaires, Jonathan B   +4 more
core   +1 more source

Human Telomeric G-Quadruplex Structures and G-Quadruplex-Interactive Compounds [PDF]

open access: yes, 2017
G-quadruplexes are noncanonical secondary structures formed in DNA sequences containing consecutive runs of guanines. It has been shown that the 3' G-rich single-stranded overhangs of human telomeres can form G-quadruplex structures, and the human telomeric DNA G-quadruplexes are considered attractive targets for anticancer drugs.
Clement, Lin, Danzhou, Yang
openaire   +2 more sources

Multimerization rules for G-quadruplexes [PDF]

open access: yesNucleic Acids Research, 2017
G-quadruplexes can multimerize under certain conditions, but the sequence requirements of such structures are not well understood. In this study, we investigated the ability of all possible variants of the central tetrad in a monomeric, parallel-strand G-quadruplex to form higher-order structures.
Kolesnikova, S. (Sofia)   +4 more
openaire   +3 more sources

G-Quadruplexes Involving Both Strands of Genomic DNA Are Highly Abundant and Colocalize with Functional Sites in the Human Genome. [PDF]

open access: yesPLoS ONE, 2016
The G-quadruplex is a non-canonical DNA structure biologically significant in DNA replication, transcription and telomere stability. To date, only G4s with all guanines originating from the same strand of DNA have been considered in the context of the ...
Andrzej S Kudlicki
doaj   +1 more source

Mapping and characterization of G-quadruplexes in Mycobacterium tuberculosis gene promoter regions [PDF]

open access: yes, 2017
Mycobacterium tuberculosis is the causative agent of tuberculosis (TB), one of the top 10 causes of death worldwide in 2015. The recent emergence of strains resistant to all current drugs urges the development of compounds with new mechanisms of action ...
Lavezzo, Enrico   +7 more
core   +1 more source

The Interaction of Cyclic Naphthalene Diimide with G-Quadruplex under Molecular Crowding Condition

open access: yesMolecules, 2020
G-quadruplex specific targeting molecules, also termed as G4 ligands, are attracting increasing attention for their ability to recognize and stabilize G-quadruplex and high potentiality for biological regulation.
Tingting Zou   +6 more
doaj   +1 more source

Development of Fluorescent Aptasensors Based on G-Quadruplex Quenching Ability for Ochratoxin A and Potassium Ions Detection

open access: yesBiosensors, 2022
G-quadruplexes have received significant attention in aptasensing due to their structural polymorphisms and unique binding properties. In this work, we exploited the fluorescence-quenching properties of G-quadruplex to develop a simple, fast, and ...
Cheng Yang   +6 more
doaj   +1 more source

New findings on the d(TGGGAG) sequence: Surprising anti-HIV-1 activity [PDF]

open access: yes, 2018
The biological relevance of tetramolecular G-quadruplexes especially as anti-HIV agents has been extensively reported in the literature over the last years. In the light of our recent results regarding the slow G-quadruplex folding kinetics of ODNs based
Di Fabio, Giovanni   +5 more
core   +1 more source

CX-5461 is a DNA G-quadruplex stabilizer with selective lethality in BRCA1/2 deficient tumours

open access: yesNature Communications, 2017
G-quadruplex DNAs form four-stranded helical structures and are proposed to play key roles in different cellular processes. Targeting G-quadruplex DNAs for cancer treatment is a very promising prospect.
Hong Xu   +38 more
semanticscholar   +1 more source

Elevated levels of G-quadruplex formation in human stomach and liver cancer tissues.

open access: yesPLoS ONE, 2014
Four-stranded G-quadruplex DNA secondary structures have recently been visualized in the nuclei of human cultured cells. Here, we show that BG4, a G-quadruplex-specific antibody, can be used to stain DNA G-quadruplex structures in patient-derived tissues
Giulia Biffi   +4 more
doaj   +1 more source

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