Results 41 to 50 of about 39,952 (313)

Fluorescent Detection of the Ubiquitous Bacterial Messenger 3′,5′ Cyclic Diguanylic Acid by Using a Small Aromatic Molecule

open access: yesFrontiers in Microbiology, 2020
3′,5′ Cyclic diguanylic acid (c-di-GMP) has been shown to play a central role in the regulation of bacterial physiological processes such as biofilm formation and virulence production, and is regarded as a potential target for the development of anti ...
Teng-Fei Xuan   +4 more
doaj   +1 more source

Highly Improved Electrospray Ionization-Mass Spectrometry Detection of G-Quadruplex-Folded Oligonucleotides and Their Complexes with Small Molecules [PDF]

open access: yes, 2017
G-quadruplexes are nucleic acids structures stabilized by physiological concentration of potassium ions. Because low stability G-quadruplexes are hardly detectable by mass spectrometry, we optimized solvent conditions: isopropanol in a triethylamine ...
Scalabrin, Matteo   +2 more
core   +1 more source

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. The experimental approaches used to characterize G4/ligand interactions can be categorized into structure-based methods (circular ...
Tiago Santos   +3 more
openaire   +4 more sources

Structured Waters Mediate Small Molecule Binding to G-Quadruplex Nucleic Acids

open access: yesPharmaceuticals, 2021
The role of G-quadruplexes in human cancers is increasingly well-defined. Accordingly, G-quadruplexes can be suitable drug targets and many small molecules have been identified to date as G-quadruplex binders, some using computer-based design methods and
Stephen Neidle
doaj   +1 more source

A Fragment-Based Approach for the Development of G-Quadruplex Ligands: Role of the Amidoxime Moiety [PDF]

open access: yes, 2018
G-quadruplex (G4) nucleic acid structures have been reported to be involved in several human pathologies, including cancer, neurodegenerative disorders and infectious diseases; however, G4 targeting compounds still need implementation in terms of drug ...
Butovskaya, Elena   +7 more
core   +2 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

The Targeting of Quadruplex Nucleic Acids in Human Cancers

open access: yesProceedings, 2019
The overwhelming majority of DNA in the human genome is double-stranded. However,regions comprising several short guanine-tracts are capable of forming higher-order structures,termed quadruplexes. [...]
Stephen Neidle
doaj   +1 more source

Surface Plasmon Resonance kinetic analysis of the interaction between G-quadruplex nucleic acids and an anti-G-quadruplex monoclonal antibody [PDF]

open access: yes, 2018
Background G-quadruplexes (G4s) are nucleic acids secondary structures formed in guanine-rich sequences. Anti-G4 antibodies represent a tool for the direct investigation of G4s in cells.
Lago, Sara   +3 more
core   +1 more source

Nanostructured luminescently labeled nucleic acids [PDF]

open access: yes, 2017
Important and emerging trends at the interface of luminescence, nucleic acids and nanotechnology are: (i) the conventional luminescence labeling of nucleic acid nanostructures (e.g. DNA tetrahedron); (ii) the labeling of bulk nucleic acids (e.g. single‐
Adleman   +105 more
core   +1 more source

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

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