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Condensed Supramolecular Helices : The Twisted Sisters of DNA

Du, Guanqun LU ; Belić, Domagoj LU ; Del Giudice, Alessandra ; Alfredsson, Viveka LU ; Carnerup, Anna M. LU ; Zhu, Kaizheng ; Nyström, Bo ; Wang, Yilin ; Galantini, Luciano and Schillén, Karin LU orcid (2022) In Angewandte Chemie (International edition) 61(4).
Abstract

Condensation of DNA helices into hexagonally packed bundles and toroids represents an intriguing example of functional organization of biological macromolecules at the nanoscale. The condensation models are based on the unique polyelectrolyte features of DNA, however here we could reproduce a DNA-like condensation with supramolecular helices of small chiral molecules, thereby demonstrating that it is a more general phenomenon. We show that the bile salt sodium deoxycholate can form supramolecular helices upon interaction with oppositely charged polyelectrolytes of homopolymer or block copolymers. At higher order, a controlled hexagonal packing of the helices into DNA-like bundles and toroids could be accomplished. The results disclose... (More)

Condensation of DNA helices into hexagonally packed bundles and toroids represents an intriguing example of functional organization of biological macromolecules at the nanoscale. The condensation models are based on the unique polyelectrolyte features of DNA, however here we could reproduce a DNA-like condensation with supramolecular helices of small chiral molecules, thereby demonstrating that it is a more general phenomenon. We show that the bile salt sodium deoxycholate can form supramolecular helices upon interaction with oppositely charged polyelectrolytes of homopolymer or block copolymers. At higher order, a controlled hexagonal packing of the helices into DNA-like bundles and toroids could be accomplished. The results disclose unknown similarities between covalent and supramolecular non-covalent helical polyelectrolytes, which inspire visionary ideas of constructing supramolecular versions of biological macromolecules. As drug nanocarriers the polymer-bile salt superstructures would get advantage of a complex chirality at molecular and supramolecular levels, whose effect on the nanocarrier assisted drug efficiency is a still unexplored fascinating issue.

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author
; ; ; ; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Angewandte Chemie (International edition)
volume
61
issue
4
article number
e202113279
pages
9 pages
publisher
John Wiley & Sons Inc.
external identifiers
  • pmid:34757695
  • scopus:85120434560
ISSN
1521-3773
DOI
10.1002/anie.202113279
language
English
LU publication?
yes
additional info
© 2021 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH.
id
9800c0d3-6968-4b6a-9c6a-9c4558029e5c
date added to LUP
2021-12-13 22:46:02
date last changed
2024-06-29 23:38:14
@article{9800c0d3-6968-4b6a-9c6a-9c4558029e5c,
  abstract     = {{<p>Condensation of DNA helices into hexagonally packed bundles and toroids represents an intriguing example of functional organization of biological macromolecules at the nanoscale. The condensation models are based on the unique polyelectrolyte features of DNA, however here we could reproduce a DNA-like condensation with supramolecular helices of small chiral molecules, thereby demonstrating that it is a more general phenomenon. We show that the bile salt sodium deoxycholate can form supramolecular helices upon interaction with oppositely charged polyelectrolytes of homopolymer or block copolymers. At higher order, a controlled hexagonal packing of the helices into DNA-like bundles and toroids could be accomplished. The results disclose unknown similarities between covalent and supramolecular non-covalent helical polyelectrolytes, which inspire visionary ideas of constructing supramolecular versions of biological macromolecules. As drug nanocarriers the polymer-bile salt superstructures would get advantage of a complex chirality at molecular and supramolecular levels, whose effect on the nanocarrier assisted drug efficiency is a still unexplored fascinating issue.</p>}},
  author       = {{Du, Guanqun and Belić, Domagoj and Del Giudice, Alessandra and Alfredsson, Viveka and Carnerup, Anna M. and Zhu, Kaizheng and Nyström, Bo and Wang, Yilin and Galantini, Luciano and Schillén, Karin}},
  issn         = {{1521-3773}},
  language     = {{eng}},
  month        = {{01}},
  number       = {{4}},
  publisher    = {{John Wiley & Sons Inc.}},
  series       = {{Angewandte Chemie (International edition)}},
  title        = {{Condensed Supramolecular Helices : The Twisted Sisters of DNA}},
  url          = {{http://dx.doi.org/10.1002/anie.202113279}},
  doi          = {{10.1002/anie.202113279}},
  volume       = {{61}},
  year         = {{2022}},
}