Spectroscopic, viscositic and molecular modeling studies on the interaction of 3'-azido-daunorubicin thiosemicarbazone with DNA.
Spectroscopic, viscositic and molecular modeling studies on the interaction of 3'-azido-daunorubicin thiosemicarbazone with DNA.
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DOI:
10.1007/s10895-013-1285-8
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发表时间:
2014-01
影响因子:
2.7
通讯作者:
Zhang, Guisheng
中科院分区:
文献类型:
--
作者:
Cui, Fengling;Liu, Qingfeng;Luo, Hongxia;Zhang, Guisheng
A new daunorubicin has been synthesized and structurally characterized. The interaction of native calf thymus DNA (ctDNA) with 3′-azido-daunorubicin thiosemicarbazone (ADNRT) was investigated under simulated physiological conditions by multi-spectroscopic techniques, viscometric measurements and molecular modeling study. It concluded that ADNRT could intercalate into the base pairs of ctDNA, and the fluorescence quenching by ctDNA was static quenching type. Thermodynamic parameters calculated suggested that the binding of ADNRT to ctDNA was mainly driven by hydrophobic interactions. The relative viscosity of ctDNA increased with the addition of ADNRT, which confirmed the intercalation mode. Furthermore, molecular modeling studies corroborate the above experimental results.
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