Solvent-induced DNA conformational transition.

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Solvent-induced DNA conformational transition. Abstract Text:

B Gu,F S Zhang,Z P Wang,H Y Zhou,

Modified water models with scaled charges are used to investigate solvent polarity effects on DNA structure. Several intensive molecular dynamics simulations of the DNA EcoRI dodecamer d(CGCGAATTCGCG) in different model solvents are performed. When the polarity of the solvent molecule decreases, from overpolarized to less polarized, DNA experiences the conformational transitions of constrained-->B form-->(A-B)mix-->A form. We demonstrate that one important cause of these structure changes is the competition between hydration and direct cation coupling to the free oxygen atoms in the phosphate groups on DNA backbones.

Solvent-induced DNA conformational transition. Publishing Authors By Initials

B Gu,FS Zhang,ZP Wang,HY Zhou,

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Solvent-induced DNA conformational transition. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Physical review letters

VOLUME: 100

Page Numbers: 088104

Journal Abbreviation: Phys. Rev. Lett.

ISSN: 0031-9007

DAY: 29

MONTH: 02

YEAR: 2008

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LANGUAGE: eng

NlmUniqueID: 401141

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Grant and Affiliation Information for Solvent-induced DNA conformational transition.

AFFILIATION: The Key Laboratory of Beam Technology and Material Modification of Ministry of Education, Institute of Low Energy Nuclear Physics, Beijing Normal University, Beijing 100875, China and Beijing Radiation Center, Beijing 100875, China.

Country: United States

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MEDLINETA: Phys Rev Lett

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