高等学校化学学报 ›› 1994, Vol. 15 ›› Issue (12): 1742.

• 论文 • 上一篇    下一篇

三菲咯啉合铁手性配合物键合DNA的立体选择性

杨频, 靳兰, 杨斌盛   

  1. 山西大学分子科学研究所, 太原, 030006
  • 收稿日期:1993-12-18 修回日期:1994-06-30 出版日期:1994-12-24 发布日期:1994-12-24
  • 通讯作者: 杨频,男,60岁,教授.
  • 作者简介:杨频,男,60岁,教授.

Stereoselectivity in Chiral Complex Tris(phenanthroline) Iron (Ⅱ)Binding to DNA

YANG Pin, JIN Lan, YANG Bin-Sheng   

  1. Institute of Molecular Science, Shanxi University, Taiyuan, 030006
  • Received:1993-12-18 Revised:1994-06-30 Online:1994-12-24 Published:1994-12-24

摘要: 应用光谱法研究了手性金属配合物[Fe(phen)3]2+与小牛胸腺DNA的作用,确定了△型异构体对B型右手螺旋DNA有优先键合的立体选择性。

关键词: 手性金属配合物, DNA, 立体选择性

Abstract: The chiral complexes tris (phenanthroline) iron (Ⅱ) were synthesized. The structures of the complexes were determined by IR, UV, EXAFS, CD. The binding of the complexes to calf thymus DNAwas studied by spectral methods. Hypochromism and enhancement of luminescence accompany DNAbinding and the binding show the characteristic of intercalation. The enhancement of luminescence seen for △ isomer in the presence of DNAis greater than that for ∧ isomer. The luminescence quenchng produced by [Fe(CN)6]4- for △ isomer in the presence of DNAis smaller than that for Aisomer. It means that △isomer binds preferentially to B-DNA.

Key words: Chiral metal complex, DNA, Stereoselectivity

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