The intriguing structural diversity in folded topologies available to guanine-rich nucleic acid
repeat sequences have made four-stranded G-quadruplex structures the focus of both basic …

In contrast to B-DNA that has a right-handed double helical structure with Watson–Crick
base pairing under the ordinary physiological conditions, repetitive DNA sequences under …

Quadruplex nucleic acids are four-stranded structures formed from short tracts of G-rich
sequence associating together. Their formation from eukaryotic telomeric DNA sequences is …

Guanine's array of hydrogen bond donors and acceptors lead it to take part in structures as
diverse as B-DNA, Z-DNA, hairpins, cruciforms, triplexes, and G-quadruplexes; these …

Previous studies have demonstrated that nuclease hypersensitivity regions of several proto-
oncogenic DNA promoters, situated upstream of transcription start sites, contain guanine …

Abstract G-quadruplexes (G4) are helical structures found in guanine-rich DNA or RNA
sequences. Generally, their formalism is based on a few dozen structures, which can …

G-quadruplexes constitute a class of nucleic acid structures defined by stacked guanine
tetrads (or G-tetrads) with guanine bases from neighboring tetrads stacking with one another …

Guanine (G)-rich DNA or RNA sequences can assemble or intramolecularly fold into G-
quadruplexes formed through the stacking of planar G· G· G· G tetrads in the presence of …

The formation of a single G-quadruplex structure adopted by a promising 25 nt G-rich
vascular endothelial growth factor aptamer in a K+ rich environment was facilitated by …

CEB1 is a highly polymorphic human minisatellite. In yeast, the size variation of CEB1
tandem arrays has been associated with the capacity of the motif to form G-quadruplexes …