A PROMISING DNA GROOVE BINDER AND PHOTOCLEAVER BASED ON A DINUCLEAR RUTHENIUM(II) COMPLEX

ABSTRACT A dinuclear ruthenium complex [Ru2(bpy)4(bip-phenol)](ClO4)4 {bpy = 2,2′-bipyridine, bip-phenol = 2,4-bis(1H-imidazo[4,5-f][1,10]phenanthrolin-2-yl)phenol} has been synthesized and characterized. The calf thymus (ct) DNA binding properties of the complex are investigated by means...

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Autores principales: Mi,Ya-Xuan, Wang,Shuang, Xu,Xue-Xue, Zhao,Hua-Qian, Zheng,Ze-Bao, Zhao,Xiao-Long
Lenguaje:English
Publicado: Sociedad Chilena de Química 2019
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072019000104392
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spelling oai:scielo:S0717-970720190001043922019-04-11A PROMISING DNA GROOVE BINDER AND PHOTOCLEAVER BASED ON A DINUCLEAR RUTHENIUM(II) COMPLEXMi,Ya-XuanWang,ShuangXu,Xue-XueZhao,Hua-QianZheng,Ze-BaoZhao,Xiao-Long Ruthenium(II) complex Calf thymus DNA Groove mode ABSTRACT A dinuclear ruthenium complex [Ru2(bpy)4(bip-phenol)](ClO4)4 {bpy = 2,2′-bipyridine, bip-phenol = 2,4-bis(1H-imidazo[4,5-f][1,10]phenanthrolin-2-yl)phenol} has been synthesized and characterized. The calf thymus (ct) DNA binding properties of the complex are investigated by means of DNA viscosity and optical spectroscopic techniques of UV-visible absorption and emission spectral titrations, steady-state emission quenching with ferrocyanide, ethidium bromide competitive binding, DNA thermal denaturation and reverse salt effect, together with molecular simulation technology. The results suggest that the complex is a promising DNA groove binder with a large DNA binding constant on 106 M−1 order of magnitude. The fluorescence of the complex manifests by 6.3-fold upon binding saturately to DNA. The complex is also demonstrated to be an efficient photocleaver of pBR 322 DNA.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.64 n.1 20192019-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072019000104392en10.4067/s0717-97072019000104392
institution Scielo Chile
collection Scielo Chile
language English
topic Ruthenium(II) complex
Calf thymus DNA
Groove mode
spellingShingle Ruthenium(II) complex
Calf thymus DNA
Groove mode
Mi,Ya-Xuan
Wang,Shuang
Xu,Xue-Xue
Zhao,Hua-Qian
Zheng,Ze-Bao
Zhao,Xiao-Long
A PROMISING DNA GROOVE BINDER AND PHOTOCLEAVER BASED ON A DINUCLEAR RUTHENIUM(II) COMPLEX
description ABSTRACT A dinuclear ruthenium complex [Ru2(bpy)4(bip-phenol)](ClO4)4 {bpy = 2,2′-bipyridine, bip-phenol = 2,4-bis(1H-imidazo[4,5-f][1,10]phenanthrolin-2-yl)phenol} has been synthesized and characterized. The calf thymus (ct) DNA binding properties of the complex are investigated by means of DNA viscosity and optical spectroscopic techniques of UV-visible absorption and emission spectral titrations, steady-state emission quenching with ferrocyanide, ethidium bromide competitive binding, DNA thermal denaturation and reverse salt effect, together with molecular simulation technology. The results suggest that the complex is a promising DNA groove binder with a large DNA binding constant on 106 M−1 order of magnitude. The fluorescence of the complex manifests by 6.3-fold upon binding saturately to DNA. The complex is also demonstrated to be an efficient photocleaver of pBR 322 DNA.
author Mi,Ya-Xuan
Wang,Shuang
Xu,Xue-Xue
Zhao,Hua-Qian
Zheng,Ze-Bao
Zhao,Xiao-Long
author_facet Mi,Ya-Xuan
Wang,Shuang
Xu,Xue-Xue
Zhao,Hua-Qian
Zheng,Ze-Bao
Zhao,Xiao-Long
author_sort Mi,Ya-Xuan
title A PROMISING DNA GROOVE BINDER AND PHOTOCLEAVER BASED ON A DINUCLEAR RUTHENIUM(II) COMPLEX
title_short A PROMISING DNA GROOVE BINDER AND PHOTOCLEAVER BASED ON A DINUCLEAR RUTHENIUM(II) COMPLEX
title_full A PROMISING DNA GROOVE BINDER AND PHOTOCLEAVER BASED ON A DINUCLEAR RUTHENIUM(II) COMPLEX
title_fullStr A PROMISING DNA GROOVE BINDER AND PHOTOCLEAVER BASED ON A DINUCLEAR RUTHENIUM(II) COMPLEX
title_full_unstemmed A PROMISING DNA GROOVE BINDER AND PHOTOCLEAVER BASED ON A DINUCLEAR RUTHENIUM(II) COMPLEX
title_sort promising dna groove binder and photocleaver based on a dinuclear ruthenium(ii) complex
publisher Sociedad Chilena de Química
publishDate 2019
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072019000104392
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