期刊
JOURNAL OF INORGANIC BIOCHEMISTRY
卷 102, 期 5-6, 页码 1050-1059出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jinorgbio.2007.12.025
关键词
ruthenium(II) complexes; DNA binding; photocleavage; topoisomerase inhibition
A DNA-intercalating Ru(II) polypyridyl complex [Ru(bpy)(2)(appo)](2+) (bpy=2,2'-bipyridine, appo = 11-aminopteridino[6,7-f][1,10]phenanthrolin-13(12H)-one) has been synthesized and characterized by elemental analysis, electrospray mass spectra, H-1 NMR, UV/Vis spectrum, fluorescent spectrum and electrochemistry. The DNA-binding, photocleavage, and topoisomerase inhibition of the complex was studied. Interestingly, the complex binds to DNA via an intercalative mode with preference for GC sequences and cleaves the pBR322 DNA upon irradiation. In addition, the complex shows high inhibition activity against topoisomerase II by interfere the DNA religation. (C) 2008 Elsevier Inc. All rights reserved.
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