All-or-none (or something in between) transition of DNA
(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.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/154080
- author
- Hayashi, Yoshikatsu LU
- organization
- publishing date
- 2004
- 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
- 2016-04-01 11:52:24
- date last changed
- 2022-01-26 19:31:36
@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 = {{https://lup.lub.lu.se/search/files/2680998/625344.pdf}}, doi = {{10.1209/epl/i2004-10246-x}}, volume = {{68}}, year = {{2004}}, }