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中文摘要：
金属离子与核酸的相互作用以及DNA中电子传递效率的研究是当前分子生物学的研究热点之一。Hg（Ⅱ）离子能够结合胸腺嘧啶（T）-胸腺嘧啶（T）碱基对形成稳定的T-Hg（Ⅱ）-T结构。近年来人们利用这一性质开发了许多检测Hg（Ⅱ）离子的传感器，但是关于T-Hg（Ⅱ）-T结构对DNA中电子转移的影响很少有文献报道。
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