一个基于G-C基配对的DNA灵感合成离子通道
Rabindra Nath Das1, Y Pavan Kumar, Ole Mathis Schütte
1Department of Organic Chemistry, Indian Association for the Cultivation of Science , Jadavpur, Kolkata, West Bengal 700032, India.
Journal of the American Chemical Society
|December 17, 2014
概括
一种新型的guanosine-cytidine dinucleoside形成稳定的超分子纳米结构,并作为离子通道起作用. 这种离子通道活性可以被细胞因子特别抑制.
科学领域:
- 超分子化学 超分子化学
- 纳米技术 纳米技术
- 生物物理学的生物物理.
背景情况:
- 基于核酸盐的自我组装对于开发功能性纳米材料至关重要.
- 设计具有可控制门机制的特定离子通道仍然是一个重大挑战.
研究的目的:
- 为了合成一个瓜诺辛-赛蒂丁二核酸.
- 为了研究其自我组装成超分子纳米结构.
- 评估其离子通道特性和抑制机制.
主要方法:
- 模块化一个的亚酸-基因循环添加用于二核酸合成.
- 对于离子输送研究的单通道分析.
- 传输电子显微镜,原子力显微镜和循环二极化谱镜用于结构特征.
主要成果:
- 合成的二核酸主要形成大型通道,用于离子输送,其电导率为2.9nS.
- 通过沃森-克里克H结合和π-π堆叠的自发自组合形成稳定的纳米结构.
- 氨酸被确定为dinucleoside的离子通道活性的抑制剂.
结论:
- 瓜诺辛 - 赛蒂丁二核酸酸自组装成功能性离子通道.
- 离子通道活动是可控制的,可以通过互补的核基来抑制.
- 这项工作为开发基于核酸的人工离子通道提供了基础.
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