Molecules, 2019 G-quadruplex is a special secondary structure of nucleic acids in guanine-rich sequences of genome. G-quadruplexes have been proved to be involved in the regulation of replication, DNA damage repair, and transcription and translation of oncogenes or ...
Zhi-Yin Sun +4 more
doaj +1 more source
A new cationic porphyrin derivative (TMPipEOPP) with large side arm substituents: a highly selective G-quadruplex optical probe. [PDF]
PLoS 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
Mapping and characterization of G-quadruplexes in Mycobacterium tuberculosis gene promoter regions [PDF]
, 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
Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation
FEBS Letters, EarlyView.Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz +11 more
wiley +1 more source
G4mismatch: Deep neural networks to predict G-quadruplex propensity based on G4-seq data.
PLoS Computational Biology, 2023 G-quadruplexes are non-B-DNA structures that form in the genome facilitated by Hoogsteen bonds between guanines in single or multiple strands of DNA.
Mira Barshai +3 more
doaj +1 more source
Qualitative SERS analysis of G-quadruplex DNAs using selective stabilising ligands [PDF]
, 2014 Nucleic acids are of key biological importance due to their range of functions and ability to form various different structures, with an example of emerging significance being quadruplexes formed by guanine-rich sequences.
Dhamodharan, V. +4 more
core +1 more source
Isothermal folding of G-quadruplexes [PDF]
Methods, 2012 Thermodynamic studies of G-quadruplex stability are an essential complement to structures obtained by NMR or X-ray crystallography. An understanding of the energetics of quadruplex folding provides a necessary foundation for the physical interpretation of quadruplex formation and reactivity.
Gray, Robert D, Chaires, Jonathan B
openaire +2 more sources
pH‐mediated activation of the lysosomal arginine sensor SLC38A9
FEBS Letters, EarlyView.Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley +1 more source
Formation of G-quadruplex and Its Utilizing for an Automated Spectrometric Detection of Cisplatin
International Journal of Electrochemical Science, 2015 Here, we studied the formation of G-quadruplex using spectrophotometric methods (peroxidase activity of G-quadruplex) and verifications of obtained results by voltammetry (cytosine-adenine (CA) or guanine (G) peaks height).
Branislav Ruttkay-Nedecky +9 more
doaj +1 more source
G-quadruplex DNA motifs in the malaria parasite Plasmodium falciparum and their potential as novel antimalarial drug targets [PDF]
, 2018 G-quadruplexes are DNA or RNA secondary structures that can be formed from guanine-rich nucleic acids. These four-stranded structures, composed of stacked quartets of guanine bases, can be highly stable and have been demonstrated to occur in vivo in the ...
Damblon, C +7 more
core +1 more source