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All-or-none (or something in between) transition of DNA

Hayashi, Yoshikatsu LU (2004) In Europhysics Letters 68(4). p.536-542
Abstract
DNA compaction can be caused by multivalent ions as condensing agents. Both discontinuous (all-or-none) and continuous (pearl-necklace structure) transitions have been observed in experiments as the concentration of the condensing agent was increased. We have investigated the DNA transition by analytical calculations in the infinite-chain limit. A mechanism for pearl-necklace structures could be a combinatorial entropy term, which favours a mixture of globules and coils in a single chain. However, when a surface term is taken into account, it gives rise to a discontinuous transition. We also consider the role of surface charges on the globule.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Europhysics Letters
volume
68
issue
4
pages
536 - 542
publisher
EDP Sciences
external identifiers
  • wos:000225057600011
  • scopus:23844526229
ISSN
0295-5075
DOI
10.1209/epl/i2004-10246-x
language
English
LU publication?
yes
id
e6a7ead7-e0e9-4f8e-9d4b-8b37e6364431 (old id 154080)
date added to LUP
2007-07-11 12:22:58
date last changed
2017-01-01 04:37:23
@article{e6a7ead7-e0e9-4f8e-9d4b-8b37e6364431,
  abstract     = {DNA compaction can be caused by multivalent ions as condensing agents. Both discontinuous (all-or-none) and continuous (pearl-necklace structure) transitions have been observed in experiments as the concentration of the condensing agent was increased. We have investigated the DNA transition by analytical calculations in the infinite-chain limit. A mechanism for pearl-necklace structures could be a combinatorial entropy term, which favours a mixture of globules and coils in a single chain. However, when a surface term is taken into account, it gives rise to a discontinuous transition. We also consider the role of surface charges on the globule.},
  author       = {Hayashi, Yoshikatsu},
  issn         = {0295-5075},
  language     = {eng},
  number       = {4},
  pages        = {536--542},
  publisher    = {EDP Sciences},
  series       = {Europhysics Letters},
  title        = {All-or-none (or something in between) transition of DNA},
  url          = {http://dx.doi.org/10.1209/epl/i2004-10246-x},
  volume       = {68},
  year         = {2004},
}