Hofmeister series and ionic effects of alkali metal ions on DNA conformation transition in normal and less polarised water solvent
文献类型：期刊论文
| 作者 | Wen, Jing1,2; Shen, Xin1,2; Shen, Hao1,2; Zhang, Feng-Shou1,2,3 |
| 刊名 | MOLECULAR PHYSICS
 |
| 出版日期 | 2014-10-18 |
| 卷号 | 112页码:2707-2719 |
| 关键词 | Dna Hofmeister Effect Less Polarised Solvent Ionic Effects Molecular Liquids |
| ISSN号 | 0026-8976 |
| DOI | 10.1080/00268976.2014.906674 |
| 文献子类 | Article |
| 英文摘要 | Normal and less polarised water models are used as the solvent to investigate Hofmeister effects and alkali metal ionic effects on dodecamer d(CGCGAATTCGCG) B-DNA with atomic dynamics simulations. As normal water solvent is replaced by less polarised water, the Hofmeister series of alkali metal ions is changed from Li+ > Na+ similar or equal to K+ similar or equal to Cs+ similar or equal to Rb+ to Li+ > Na+ > K+ > Rb+ > Cs+. In less polarised water, DNA experiences the B -> A conformational transition for the lighter alkali metal counterions (Li+, Na+ and K+). However, it keeps B form for the heavier ions (Rb+ and Cs+). We find that the underlying cause of the conformation transition for these alkali metal ions except K+ is the competition between water molecules and counterions coupling to the free oxygen atoms of the phosphate groups. For K+ ions, the 'economics' of phosphate hydration and 'spine of hydration' are both concerned with the DNA helixes changing. |
| WOS关键词 | BROWNIAN DYNAMICS SIMULATIONS ; B-A TRANSITION ; MOLECULAR-DYNAMICS ; NUCLEIC-ACIDS ; CATION INTERACTIONS ; COUNTERION BINDING ; PROTEIN STABILITY ; ATOMIC-RESOLUTION ; DOUBLE HELICES ; SALT-SOLUTIONS |
| 资助项目 | European Commission[269131] |
| WOS研究方向 | Chemistry ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000348936900009 |
| 出版者 | TAYLOR & FRANCIS LTD |
| 源URL | [http://119.78.100.186/handle/113462/49225]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Zhang, Feng-Shou |
| 作者单位 | 1.Beijing Normal Univ, Coll Nucl Sci & Technol, Key Lab Beam Technol & Mat Modificat, Minist Educ, Beijing 100875, Peoples R China 2.Beijing Radiat Ctr, Beijing, Peoples R China 3.Ctr Theoret Nucl Phys, Natl Lab Heavy Ion Accelerator Lanzhou, Lanzhou, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wen, Jing,Shen, Xin,Shen, Hao,et al. Hofmeister series and ionic effects of alkali metal ions on DNA conformation transition in normal and less polarised water solvent[J]. MOLECULAR PHYSICS,2014,112:2707-2719. |
| APA | Wen, Jing,Shen, Xin,Shen, Hao,&Zhang, Feng-Shou.(2014).Hofmeister series and ionic effects of alkali metal ions on DNA conformation transition in normal and less polarised water solvent.MOLECULAR PHYSICS,112,2707-2719. |
| MLA | Wen, Jing,et al."Hofmeister series and ionic effects of alkali metal ions on DNA conformation transition in normal and less polarised water solvent".MOLECULAR PHYSICS 112(2014):2707-2719. |
入库方式： OAI收割
来源：近代物理研究所
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