English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 49189/83570 (59%)
造訪人次 : 7088568      線上人數 : 63
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
搜尋範圍 查詢小技巧:
  • 您可在西文檢索詞彙前後加上"雙引號",以獲取較精準的檢索結果
  • 若欲以作者姓名搜尋,建議至進階搜尋限定作者欄位,可獲得較完整資料
  • 進階搜尋
    請使用永久網址來引用或連結此文件: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/27566


    題名: Stretching a double-stranded DNA: Nature of the B-form to the S-form transition
    作者: Lai, Pik-yin;周子聰;Zhou, Zi-cong
    貢獻者: 淡江大學物理學系
    日期: 2003-06-22
    上傳時間: 2009-12-31 10:25:25 (UTC+8)
    出版者: American Institute of Physics (AIP)
    摘要: The abrupt extension of the contour length and the self-unwinding of the double helix in the transition from the B-form to S-form of a double-stranded DNA under a stretching force is investigated in the framework of the model with basepair interactions and bending @Phys. Rev. Lett.
    22, 4560 ~1999!#. In the region where thermal fluctuations can be neglected the classical mechanical approach is employed and equations governing the detail structure of the DNA are derived with some analytical results obtained. The transition from the B-form to S-form can be understood in
    terms of an effective potential with a barrier separating these two states and resulting in a first-order transition. The double helix of the DNA is almost fully unwound across the transition. Detail
    structural configurations, such as the loci of the two strands, relative extension, linear extension coefficient, and the threshold stretching force are calculated. The mean torque release as the dsDNA
    untwist across the transition is also estimated. These results are in agreement with various experimental data.
    關聯: Journal of chemical physics 118(24), pp.11189-11199
    DOI: 10.1063/1.1574795
    顯示於類別:[物理學系暨研究所] 期刊論文

    文件中的檔案:

    檔案 描述 大小格式瀏覽次數
    0021-9606_118(24)p11189-11199.pdf742KbAdobe PDF393檢視/開啟
    index.html0KbHTML6檢視/開啟
    index.html館藏資訊0KbHTML8檢視/開啟

    在機構典藏中所有的資料項目都受到原著作權保護.

    TAIR相關文章

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - 回饋