[HTML][HTML] Non-B DNA structures as a booster of genome instability

RC Duardo, F Guerra, S Pepe, G Capranico - Biochimie, 2023 - Elsevier
Non-canonical secondary structures (NCSs) are alternative nucleic acid structures that differ
from the canonical B-DNA conformation. NCSs often occur in repetitive DNA sequences and …

Interaction of proteins with inverted repeats and cruciform structures in nucleic acids

RP Bowater, N Bohálová, V Brázda - International Journal of Molecular …, 2022 - mdpi.com
Cruciforms occur when inverted repeat sequences in double-stranded DNA adopt intra-
strand hairpins on opposing strands. Biophysical and molecular studies of these structures …

Replication‐induced DNA secondary structures drive fork uncoupling and breakage

SL Williams, CS Casas‐Delucchi, F Raguseo… - The EMBO …, 2023 - embopress.org
Sequences that form DNA secondary structures, such as G‐quadruplexes (G4s) and
intercalated‐Motifs (iMs), are abundant in the human genome and play various …

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 …

The roles of DNA methylation on pH dependent i-motif (iM) formation in rice

Y Feng, X Ma, Y Yang, S Tao, A Ahmed… - Nucleic Acids …, 2024 - academic.oup.com
I-motifs (iMs) are four-stranded non-B DNA structures containing C-rich DNA sequences.
The formation of iMs is sensitive to pH conditions and DNA methylation, although the extent …

Prediction of DNA i-motifs via machine learning

B Yang, D Guneri, H Yu, EP Wright… - Nucleic Acids …, 2024 - academic.oup.com
Abstract i-Motifs (iMs), are secondary structures formed in cytosine-rich DNA sequences and
are involved in multiple functions in the genome. Although putative iM forming sequences …

Organometallic pillarplexes that bind DNA 4-way Holliday junctions and forks

JS Craig, L Melidis, HD Williams… - Journal of the …, 2023 - ACS Publications
Holliday 4-way junctions are key to important biological DNA processes (insertion,
recombination, and repair) and are dynamic structures that adopt either open or closed …

DNA i-motif formation at neutral pH is driven by kinetic partitioning

P Školáková, M Gajarský, J Palacký… - Nucleic Acids …, 2023 - academic.oup.com
Cytosine-rich DNA regions can form four-stranded structures based on hemi-protonated C.
C+ pairs, called i-motifs (iMs). Using CD, UV absorption, NMR spectroscopy, and DSC …

Regulation of c-Kit gene transcription selectively by bisacridine derivative through promoter dual i-motif structures

X Gong, X Lin, S Wang, D Ji, B Shu, ZS Huang… - Biochimica et Biophysica …, 2023 - Elsevier
Background c-Kit protein is a signal transduction protein involved in multiple signal
pathways, which play an important role in a variety of cellular events such as cell …

[HTML][HTML] Identification of sugar-containing natural products that interact with i-motif DNA

RV Chikhale, D Guneri, R Yuan, CJ Morris… - Bioorganic & Medicinal …, 2022 - Elsevier
There are thousands of compounds shown to interact with G-quadruplex DNA, yet very few
which target i-motif (iM) DNA. Previous work showed that tobramycin can interact with iM …