Kamiya M
Biochim Biophys Acta. 1979 Mar 28;562(1):70-9. doi: 10.1016/0005-2787(79)90127-8.
The circular dichroism induced in the visible absorption band of proflavine cation isolatedly intercalated to DNA was investigated in terms of the dye-DNA base pair exciton interaction. The remarkable ionic strength dependence of the induced CD magnitude was in good accord with the CD magnitude calculated on the basis of the dye-polymer Frenkel exciton interaction model and under the extent of helix deformation required for intercalation. In particular the application of the internal and modified intercalation models coupled with the deep trap approximation implied that the preference of the modified intercalation due to electrostatic interaction between the acridine-nitrogen atom and the DNA phosphate group is combined with relatively high ionic strength compared with the internal intercalation.
就染料 - DNA碱基对激子相互作用而言，研究了单独插入DNA的原黄素阳离子在可见吸收带中诱导的圆二色性。诱导的圆二色性强度对离子强度的显著依赖性，与基于染料 - 聚合物弗伦克尔激子相互作用模型并在插入所需的螺旋变形程度下计算出的圆二色性强度相符。特别是，内部和改进的插入模型与深陷阱近似相结合的应用表明，与内部插入相比，吖啶 - 氮原子与DNA磷酸基团之间的静电相互作用导致的改进插入偏好与相对较高的离子强度相结合。
