Results 21 to 30 of about 9,012 (187)

G‐Quadruplex Nucleic Acids [PDF]

open access: yesJournal of Nucleic Acids, 2010
Peer ...
ERITJA R.   +4 more
openaire   +5 more sources

Polyelectrolyte effects in G-quadruplexes [PDF]

open access: yesBiophysical Chemistry, 2013
The role of counterion condensation as a dominant force governing the stability of DNA duplexes and triplexes is well established. In contrast, the effect of counterion condensation on the stability of G-quadrupex conformations is poorly understood. Unlike other ordered nucleic acid structures, G-quadruplexes exhibit a specific binding of counterions ...
Kim, Byul   +2 more
openaire   +2 more sources

Helquat dyes targeting G-quadruplexes as a new class of anti-HIV-1 inhibitors

open access: yesScientific Reports, 2023
The secondary structure of nucleic acids containing quartets of guanines, termed G-quadruplexes, is known to regulate the transcription of many genes.
Marcela Pávová   +7 more
doaj   +1 more source

Contrasting roles for G-quadruplexes in regulating human Bcl-2 and virus homologues KSHV KS-Bcl-2 and EBV BHRF1

open access: yesScientific Reports, 2022
Herpesviruses are known to acquire several genes from their hosts during evolution. We found that a significant proportion of virus homologues encoded by HSV-1, HSV-2, EBV and KSHV and their human counterparts contain G-quadruplex motifs in their ...
Shivani Kumar   +6 more
doaj   +1 more source

G-quadruplexes self-assembled from nucleotide monomers as stable prepolymer scaffolds in aqueous environments. [PDF]

open access: yesSci Rep
Life is composed of genetic and functional polymers, such as nucleic acids. For life to have emerged, a prebiotic mechanism for assembling these polymers is essential.
Eiby SHJ   +4 more
europepmc   +2 more sources

Thermally Induced Transitions of d(G4T4G3) Quadruplexes Can Be Described as Kinetically Driven Processes

open access: yesLife, 2022
DNA sequences that are rich in guanines and can form four-stranded structures are called G-quadruplexes. Due to the growing evidence that they may play an important role in several key biological processes, the G-quadruplexes have captured the interest ...
Iztok Prislan   +2 more
doaj   +1 more source

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

open access: yes, 2011
G-quadruplexes are noncanonical secondary structures formed in DNA sequences containing consecutive runs of guanines. DNA G-quadruplexes have recently emerged as attractive cancer therapeutic targets. It has been shown that the 3' G-rich single-stranded overhangs of human telomeres can form G-quadruplex structures.
Raveendra I, Mathad, Danzhou, Yang
openaire   +2 more sources

Intramolecular telomeric G-quadruplexes dramatically inhibit DNA synthesis by replicative and translesion polymerases, revealing their potential to lead to genetic change. [PDF]

open access: yesPLoS ONE, 2014
Recent research indicates that hundreds of thousands of G-rich sequences within the human genome have the potential to form secondary structures known as G-quadruplexes. Telomeric regions, consisting of long arrays of TTAGGG/AATCCC repeats, are among the
Deanna N Edwards   +3 more
doaj   +1 more source

A new cationic porphyrin derivative (TMPipEOPP) with large side arm substituents: a highly selective G-quadruplex optical probe. [PDF]

open access: yesPLoS ONE, 2012
The discovery of uncommon DNA structures and speculation about their potential functions in genes has brought attention to specific DNA structure recognition.
Li-Na Zhu   +4 more
doaj   +1 more source

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

open access: yesNucleic Acids Research, 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 recent years the presence of G4s in viruses has attracted increasing interest.
Emanuela Ruggiero, Sara N Richter
openaire   +2 more sources

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