Non-canonical DNA structures: Diversity and disease association

A Bansal, S Kaushik, S Kukreti - Frontiers in genetics, 2022 - frontiersin.org
A complete understanding of DNA double-helical structure discovered by James Watson
and Francis Crick in 1953, unveil the importance and significance of DNA. For the last seven …

Ligands stimulating antitumour immunity as the next G-quadruplex challenge

G Miglietta, J Marinello, M Russo, G Capranico - Molecular Cancer, 2022 - Springer
Abstract G-quadruplex (G4) binders have been investigated to discover new anticancer
drugs worldwide in past decades. As these ligands are generally not highly cytotoxic, the …

Genome-wide mapping of i-motifs reveals their association with transcription regulation in live human cells

I Zanin, E Ruggiero, G Nicoletto, S Lago… - Nucleic Acids …, 2023 - academic.oup.com
Abstract i-Motifs (iMs) are four-stranded DNA structures that form at cytosine (C)-rich
sequences in acidic conditions in vitro. Their formation in cells is still under debate. We …

Recent advances in DNA walker machines and their applications coupled with signal amplification strategies: A critical review

M Xu, D Tang - Analytica Chimica Acta, 2021 - Elsevier
DNA walkers, a type of dynamic nanomachines, have become the subject of burgeoning
research in the field of biology. These walkers are powered by driving forces based on …

Structure of the Major G-Quadruplex in the Human EGFR Oncogene Promoter Adopts a Unique Folding Topology with a Distinctive Snap-Back Loop

Y Liu, J Li, Y Zhang, Y Wang, J Chen… - Journal of the …, 2023 - ACS Publications
EGFR tyrosine kinase inhibitors have made remarkable success in targeted cancer therapy.
However, therapeutic resistance inevitably occurred and EGFR-targeting therapy has been …

The i-motif as a molecular target: more than a complementary DNA secondary structure

SL Brown, S Kendrick - Pharmaceuticals, 2021 - mdpi.com
Stretches of cytosine-rich DNA are capable of adopting a dynamic secondary structure, the i-
motif. When within promoter regions, the i-motif has the potential to act as a molecular switch …

Structural insight into the bulge-containing KRAS oncogene promoter G-quadruplex bound to berberine and coptisine

KB Wang, Y Liu, J Li, C Xiao, Y Wang, W Gu… - Nature …, 2022 - nature.com
KRAS is one of the most highly mutated oncoproteins, which is overexpressed in various
human cancers and implicated in poor survival. The G-quadruplex formed in KRAS …

Decoding complexity in biomolecular recognition of DNA i-motifs with microarrays

K Yazdani, S Seshadri, D Tillo, M Yang… - Nucleic Acids …, 2023 - academic.oup.com
DNA i-motifs (iMs) are non-canonical C-rich secondary structures implicated in numerous
cellular processes. Though iMs exist throughout the genome, our understanding of iM …

DNA walker for signal amplification in living cells

A Yuan, H Xiao, F Yang, H Hao, X Wang, J Li… - TrAC Trends in …, 2023 - Elsevier
The rapid development of DNA nanotechnology enables the programmable operation of
advanced DNA walkers, mimicking the function of protein motor in living organisms. The …

A red light-triggered chemical tool for sequence-specific alkylation of G-quadruplex and I-motif DNA

E Cadoni, L De Paepe, G Colpaert, R Tack… - Nucleic Acids …, 2023 - academic.oup.com
The importance of non-canonical DNA structures such as G-quadruplexes (G4) and
intercalating-motifs (iMs) in the fine regulation of a variety of cellular processes has been …