Results 21 to 30 of about 11,711,774 (302)

Aminoglycosylation can enhance the G-quadruplex binding activity of epigallocatechin. [PDF]

open access: yesPLoS ONE, 2013
With the aim of enhancing G-quadruplex binding activity, two new glucosaminosides (16, 18) of penta-methylated epigallocatechin were synthesized by chemical glycosylation.
Li-Ping Bai   +5 more
doaj   +1 more source

Computational studies of the interactions between quinazolone derivatives and G-quadruplex DNA as an anticancer strategy [PDF]

open access: yesشیمی کاربردی روز, 2015
In recent years, stabilization of G-quadruplex structures with small molecules has attracted considerable attentions as a promising target for cancer therapy.
Kiana Gholamjani Moghaddam   +1 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

Macrocyclic Pyridyl Polyoxazoles: Structure-Activity Studies of the Aminoalkyl Side-Chain on G-Quadruplex Stabilization and Cytotoxic Activity

open access: yesMolecules, 2013
Pyridyl polyoxazoles are 24-membered macrocyclic lactams comprised of a pyridine, four oxazoles and a phenyl ring. A derivative having a 2-(dimethylamino)ethyl chain attached to the 5-position of the phenyl ring was recently identified as a selective G ...
Joseph E. Rice   +7 more
doaj   +1 more source

GNG Motifs Can Replace a GGG Stretch during G-Quadruplex Formation in a Context Dependent Manner. [PDF]

open access: yesPLoS ONE, 2016
G-quadruplexes are one of the most commonly studied non-B DNA structures. Generally, these structures are formed using a minimum of 4, three guanine tracts, with connecting loops ranging from one to seven. Recent studies have reported deviation from this
Kohal Das   +2 more
doaj   +1 more source

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

Electrochemical and AFM Characterization of G-Quadruplex Electrochemical Biosensors and Applications

open access: yesJournal of Nucleic Acids, 2018
Guanine-rich DNA sequences are able to form G-quadruplexes, being involved in important biological processes and representing smart self-assembling nanomaterials that are increasingly used in DNA nanotechnology and biosensor technology.
Ana-Maria Chiorcea-Paquim   +2 more
doaj   +1 more source

G-quadruplex organic frameworks [PDF]

open access: yesNature Chemistry, 2016
Two-dimensional covalent organic frameworks often π stack into crystalline solids that allow precise spatial positioning of molecular building blocks. Inspired by the hydrogen-bonded G-quadruplexes found frequently in guanine-rich DNA, here we show that this structural motif can be exploited to guide the self-assembly of naphthalene diimide and ...
Yi-Lin Wu   +11 more
openaire   +3 more sources

Crucial Role of the C-Terminal Domain of Hfq Protein in Genomic Instability

open access: yesMicroorganisms, 2020
G-rich DNA repeats that can form G-quadruplex structures are prevalent in bacterial genomes and are frequently associated with regulatory regions of genes involved in virulence, antigenic variation, and antibiotic resistance.
Virali J. Parekh   +5 more
doaj   +1 more source

Synthesis of copper (II) porphyrin complexes and their interaction with c-myc G-quadruplex DNA

open access: yesJournal of Holistic Integrative Pharmacy, 2021
Objective: To synthesize copper (II) porphyrin complexes and study their interactions with c-myc G-quadruplex DNA. Methods: The 5-p-hydroxyphenyl-10, 15, 20-tris (p-methoxyphenyl) copper (II) porphyrin complex [p-HTMOPPCu (II)] was synthesized by the ...
Kunxian YANG   +7 more
doaj   +1 more source

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