dorsal/arxiv
View SchemaDNA condensation and redissolution: Interaction between overcharged DNA molecules
| Authors | E. Allahyarov, G. Gompper, H. Löwen |
|---|---|
| Categories | |
| ArXiv ID | q-bio/0412039 |
| URL | https://arxiv.org/abs/q-bio/0412039 |
| DOI | 10.1088/0953-8984/17/20/012 |
Abstract
The effective DNA-DNA interaction force is calculated by computer simulations with explicit tetravalent counterions and monovalent salt. For overcharged DNA molecules, the interaction force shows a double-minimum structure. The positions and depths of these minima are regulated by the counterion density in the bulk. Using two-dimensional lattice sum and free energy perturbation theories, the coexisting phases for DNA bundles are calculated. A DNA-condensation and redissolution transition and a stable mesocrystal with an intermediate lattice constant for high counterion concentration are obtained.
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"abstract": "The effective DNA-DNA interaction force is calculated by computer simulations\nwith explicit tetravalent counterions and monovalent salt. For overcharged DNA\nmolecules, the interaction force shows a double-minimum structure. The\npositions and depths of these minima are regulated by the counterion density in\nthe bulk. Using two-dimensional lattice sum and free energy perturbation\ntheories, the coexisting phases for DNA bundles are calculated. A\nDNA-condensation and redissolution transition and a stable mesocrystal with an\nintermediate lattice constant for high counterion concentration are obtained.",
"arxiv_id": "q-bio/0412039",
"authors": [
"E. Allahyarov",
"G. Gompper",
"H. L\u00f6wen"
],
"categories": [
"q-bio.BM"
],
"doi": "10.1088/0953-8984/17/20/012",
"title": "DNA condensation and redissolution: Interaction between overcharged DNA molecules",
"url": "https://arxiv.org/abs/q-bio/0412039"
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