Effects of knot tightness at the molecular level

Three 819 knots in closed-loop strands of different lengths (∼20, 23, and 26 nm) were used to experimentally assess the consequences of knot tightness at the molecular level. Through the use of ¹H NMR, diffusion-ordered spectroscopy (DOSY), circular dichroism (CD), collision-induced dissociation mas...

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Veröffentlicht in:	Proceedings of the National Academy of Sciences - PNAS 2019-02, Vol.116 (7), p.2452-2457
Hauptverfasser:	Zhang, Liang, Lemonnier, Jean-François, Acocella, Angela, Calvaresi, Matteo, Zerbetto, Francesco, Leigh, David A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Bonding strength Chirality Circular dichroism Collision dynamics Conformation Covalent bonds Dichroism Entanglement Knots Mass spectrometry Mass spectroscopy Molecular chains Molecular dynamics Molecular structure NMR Nuclear magnetic resonance Physical Sciences Tightness
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