Polysaccharide-Polynucleotide Complexes Part 17. Solvent Effects on Conformational-Transition of Polydeoxyadenylic Acid in the Complexes with Schizophyllan

DOI Web Site 被引用文献1件 参考文献34件
  • Mizu Masami
    Department of Chemical Process & Environments, The University of Kitakyushu
  • Koumoto Kazuya
    Department of Chemical Process & Environments, The University of Kitakyushu
  • Kimura Taro
    Biotechnology and Food Research Institute, Fukuoka Industrial Technology Center
  • Sakurai Kazuo
    Department of Chemical Process & Environments, The University of Kitakyushu
  • Shinkai Seiji
    Faculty of Engineering Department of Chemistry & Biochemistry, Graduate School of Engineering, Kyushu University

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This paper examines the relationship between the conformation and solvent for the poly(dA)/s-SPG complex using circular dichroism in the 240–300 nm wavelength region. At the low temperature and low salt concentration, poly(dA) in the complex is estimated to take C2’-endo with a different torsional angle from the anti form. With increasing temperature, the circular dichroism (CD) spectrum starts to bear characteristics of C3’-endo and anti as a minority among the majority of C2’-endo and anti. When the salt concentration is increased, the spectrum becomes almost identical to that of the high temperature form under the non-salt condition. Therefore, addition of salt provides the identical effect to increasing temperature. D2O induces the same effect as decreasing temperature.

収録刊行物

  • Polymer Journal

    Polymer Journal 35 (9), 714-720, 2003

    The Society of Polymer Science, Japan

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