Crosstalk between G-quadruplex and ROS

S Wu, L Jiang, L Lei, C Fu, J Huang, Y Hu… - Cell Death & …, 2023 - nature.com
The excessive production of reactive oxygen species (ROS) can lead to single nucleic acid
base damage, DNA strand breakage, inter-and intra-strand cross-linking of nucleic acids …

G-quadruplex-based aptamers against protein targets in therapy and diagnostics

C Platella, C Riccardi, D Montesarchio… - … et Biophysica Acta (BBA …, 2017 - Elsevier
Nucleic acid aptamers are single-stranded DNA or RNA molecules identified to recognize
with high affinity specific targets including proteins, small molecules, ions, whole cells and …

Chemical and structural studies provide a mechanistic basis for recognition of the MYC G-quadruplex

DR Calabrese, X Chen, EC Leon, SM Gaikwad… - Nature …, 2018 - nature.com
Abstract G-quadruplexes (G4s) are noncanonical DNA structures that frequently occur in the
promoter regions of oncogenes, such as MYC, and regulate gene expression. Although G4s …

The amino acid composition of quadruplex binding proteins reveals a shared motif and predicts new potential quadruplex interactors

V Brázda, J Červeň, M Bartas, N Mikysková, J Coufal… - Molecules, 2018 - mdpi.com
The importance of local DNA structures in the regulation of basic cellular processes is an
emerging field of research. Amongst local non-B DNA structures, G-quadruplexes are …

Ion binding to quadruplex DNA stems. Comparison of MM and QM descriptions reveals sizable polarization effects not included in contemporary simulations

K Gkionis, H Kruse, JA Platts, A Mladek… - Journal of chemical …, 2014 - ACS Publications
Molecular mechanical (MM) force fields are commonly employed for biomolecular
simulations. Despite their success, the nonpolarizable nature of contemporary additive force …

Formation of highly ordered multimers in G-quadruplexes

P Tóthová, P Krafčíková, V Víglaský - Biochemistry, 2014 - ACS Publications
G-Rich DNA and RNA have a higher propensity to form G-quadruplex structures, but the
presence of G-runs alone is not sufficient to prove that such sequences can form stable G …

CpG methylation changes G-quadruplex structures derived from gene promoters and interaction with VEGF and SP1

K Tsukakoshi, S Saito, W Yoshida, S Goto, K Ikebukuro - Molecules, 2018 - mdpi.com
G-quadruplex (G4) is a DNA/RNA conformation that consists of two or more G-tetrads
resulting from four-guanine bases connected by Hoogsteen-type hydrogen bonds, which is …

Characterization of long G4-rich enhancer-associated genomic regions engaging in a novel loop: loop 'G4 Kissing'interaction

JD Williams, D Houserova, BR Johnson… - Nucleic Acids …, 2020 - academic.oup.com
Mammalian antibody switch regions (∼ 1500 bp) are composed of a series of closely
neighboring G4-capable sequences. Whereas numerous structural and genome-wide …

opp-Dibenzoporphyrin Pyridinium Derivatives as Potential G-Quadruplex DNA Ligands

NMM Moura, JAS Cavaleiro, MGPMS Neves… - Molecules, 2023 - mdpi.com
Since the occurrence of tumours is closely associated with the telomerase function and
oncogene expression, the structure of such enzymes and genes are being recognized as …

Selection of DNA aptamers against uropathogenic Escherichia coli NSM59 by quantitative PCR controlled Cell-SELEX

N Savory, J Nzakizwanayo, K Abe, W Yoshida… - Journal of …, 2014 - Elsevier
In order to better control nosocomial infections, and facilitate the most prudent and effective
use of antibiotics, improved strategies for the rapid detection and identification of …