Conformational plasticity of DNA secondary structures: Probing the conversion between i-motif and hairpin species by circular dichroism and ultraviolet resonance …

J Amato, N Iaccarino, F D'Aria, F D'Amico… - Physical Chemistry …, 2022 - pubs.rsc.org
The promoter regions of important oncogenes such as BCL2 and KRAS contain GC-rich
sequences that can form distinctive noncanonical DNA structures involved in the regulation …

Ligand binding to G-quadruplex DNA: New insights from ultraviolet resonance Raman spectroscopy

S Di Fonzo, J Amato, F D'Aria, M Caterino… - Physical Chemistry …, 2020 - pubs.rsc.org
G-Quadruplexes (G4s) are noncanonical nucleic acid structures involved in the regulation of
several biological processes of many organisms. The rational design of G4-targeting …

DNA-based optical quantification of ion transport across giant vesicles

M Fletcher, J Zhu, R Rubio-Sánchez, SE Sandler… - ACS …, 2022 - ACS Publications
Accurate measurements of ion permeability through cellular membranes remains
challenging due to the lack of suitable ion-selective probes. Here we use giant unilamellar …

BMPQ-1 binds selectively to (3+ 1) hybrid topologies in human telomeric G-quadruplex multimers

C Gao, Z Liu, H Hou, J Ding, X Chen, C Xie… - Nucleic acids …, 2020 - academic.oup.com
A single G-quadruplex forming sequence from the human telomere can adopt six distinct
topologies that are inter-convertible under physiological conditions. This presents …

[HTML][HTML] Molecular mechanisms behind BRACO19 and human telomeric G-quadruplex interaction

V Libera, C Fasolato, F Ripanti, S Catalini… - … Acta Part A: Molecular …, 2024 - Elsevier
Human telomeres (HTs) can form DNA G-quadruplex (G4), an attractive target for anticancer
and antiviral drugs. HT-G4s exhibit inherent structural polymorphism, posing challenges for …

Exploring the parallel G-quadruplex nucleic acid world: a spectroscopic and computational investigation on the binding of the c-myc oncogene nhe III1 region by the …

F Greco, D Musumeci, N Borbone, AP Falanga… - Molecules, 2022 - mdpi.com
Trans-polydatin (tPD), the 3-β-D-glucoside of the well-known nutraceutical trans-resveratrol,
is a natural polyphenol with documented anti-cancer, anti-inflammatory, cardioprotective …

Unlocking the power of resonance Raman spectroscopy: The case of amides in aqueous solution

S Gómez, F Egidi, A Puglisi, T Giovannini… - Journal of Molecular …, 2022 - Elsevier
We report a joined experimental and computational study of Raman and Resonance Raman
spectra of amides in aqueous solution. By employing state-of-the-art QM/MM methods …

Local and cooperative structural transitions of double-stranded DNA in choline-based deep eutectic solvents

F Fadaei, M Tortora, A Gessini, C Masciovecchio… - International Journal of …, 2024 - Elsevier
The possibility of using deep eutectic solvents (DESs) as co-solvents for stabilizing and
preserving the native structure of DNA provides an attractive opportunity in the field of DNA …

Porphyrin binding and irradiation promote G-quadruplex DNA dimeric structure

V Libera, EA Andreeva, A Martel… - The Journal of …, 2021 - ACS Publications
Nucleic acid sequences rich in guanines can organize into noncanonical DNA G-
quadruplexes (G4s) of variable size. The design of small molecules stabilizing the structure …

Polymorphism and ligand binding modulate fast dynamics of human telomeric G-quadruplexes

L Bertini, V Libera, F Ripanti, F Natali… - International Journal of …, 2023 - mdpi.com
Telomeric G-quadruplexes (G4s) are promising targets in the design and development of
anticancer drugs. Their actual topology depends on several factors, resulting in structural …