Intrinsic Flexibility beyond the Highly ...
Type de document :
Article dans une revue scientifique: Article original
URL permanente :
Titre :
Intrinsic Flexibility beyond the Highly Ordered DNA Tetrahedron: An Integrative Spectroscopic and Molecular Dynamics Approach
Auteur(s) :
Zerbetto, Mirco [Auteur]
Università degli Studi di Padova = University of Padua [Unipd]
Saint-Pierre, Christine [Auteur]
SYstèmes Moléculaires et nanoMatériaux pour l’Energie et la Santé [SYMMES]
Piserchia, Andrea [Auteur]
Università degli Studi di Padova = University of Padua [Unipd]
Torrengo, Simona [Auteur]
SYstèmes Moléculaires et nanoMatériaux pour l’Energie et la Santé [SYMMES]
Gambarelli, Serge [Auteur]
SYstèmes Moléculaires et nanoMatériaux pour l’Energie et la Santé [SYMMES]
Abergel, Daniel [Auteur]
Laboratoire des biomolécules [LBM UMR 7203]
Polimeno, Antonino [Auteur]
Dipartimento di Scienze Chimiche [Padova]
Gasparutto, Didier [Auteur]
SYstèmes Moléculaires et nanoMatériaux pour l’Energie et la Santé [SYMMES]
Sicoli, Giuseppe [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516
Università degli Studi di Padova = University of Padua [Unipd]
Saint-Pierre, Christine [Auteur]
SYstèmes Moléculaires et nanoMatériaux pour l’Energie et la Santé [SYMMES]
Piserchia, Andrea [Auteur]
Università degli Studi di Padova = University of Padua [Unipd]
Torrengo, Simona [Auteur]
SYstèmes Moléculaires et nanoMatériaux pour l’Energie et la Santé [SYMMES]
Gambarelli, Serge [Auteur]
SYstèmes Moléculaires et nanoMatériaux pour l’Energie et la Santé [SYMMES]
Abergel, Daniel [Auteur]
Laboratoire des biomolécules [LBM UMR 7203]
Polimeno, Antonino [Auteur]
Dipartimento di Scienze Chimiche [Padova]
Gasparutto, Didier [Auteur]
SYstèmes Moléculaires et nanoMatériaux pour l’Energie et la Santé [SYMMES]
Sicoli, Giuseppe [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516
Titre de la revue :
Journal of Physical Chemistry Letters
Numéro :
14
Pagination :
10032-10038
Date de publication :
2023
Mot(s)-clé(s) en anglais :
Chemical structure
Electron paramagnetic resonance spectroscopy
Genetics
Probes
Quantum mechanics
Electron paramagnetic resonance spectroscopy
Genetics
Probes
Quantum mechanics
Discipline(s) HAL :
Chimie
Résumé en anglais : [en]
Since the introduction of DNA-based architectures, in the past decade, DNA tetrahedrons have aroused great interest. Applications of such nanostructures require structural control, especially in the perspective of their ...
Lire la suite >Since the introduction of DNA-based architectures, in the past decade, DNA tetrahedrons have aroused great interest. Applications of such nanostructures require structural control, especially in the perspective of their possible functionalities. In this work, an integrated approach for structural characterization of a tetrahedron structure is proposed with a focus on the fundamental biophysical aspects driving the assembly process. To address such an issue, spin-labeled DNA sequences are chemically synthesized, self-assembled, and then analyzed by Continuous-Wave (CW) and pulsed Electron Paramagnetic Resonance (EPR) spectroscopy. Interspin distance measurements based on PELDOR/DEER techniques combined with molecular dynamics (MD) thus revealed unexpected dynamic heterogeneity and flexibility of the assembled structures. The observation of flexibility in these ordered 3D structures demonstrates the sensitivity of this approach and its effectiveness in accessing the main dynamic and structural features with unprecedented resolution.Lire moins >
Lire la suite >Since the introduction of DNA-based architectures, in the past decade, DNA tetrahedrons have aroused great interest. Applications of such nanostructures require structural control, especially in the perspective of their possible functionalities. In this work, an integrated approach for structural characterization of a tetrahedron structure is proposed with a focus on the fundamental biophysical aspects driving the assembly process. To address such an issue, spin-labeled DNA sequences are chemically synthesized, self-assembled, and then analyzed by Continuous-Wave (CW) and pulsed Electron Paramagnetic Resonance (EPR) spectroscopy. Interspin distance measurements based on PELDOR/DEER techniques combined with molecular dynamics (MD) thus revealed unexpected dynamic heterogeneity and flexibility of the assembled structures. The observation of flexibility in these ordered 3D structures demonstrates the sensitivity of this approach and its effectiveness in accessing the main dynamic and structural features with unprecedented resolution.Lire moins >
Langue :
Anglais
Audience :
Non spécifiée
Vulgarisation :
Non
Établissement(s) :
ENSCL
CNRS
Université de Lille
CNRS
Université de Lille
Collections :
Équipe(s) de recherche :
Propriétés magnéto structurales des matériaux (PMSM)
Date de dépôt :
2024-02-21T17:11:55Z
2024-02-27T10:30:58Z
2024-02-27T10:30:58Z