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使用人类酶启动超分子DNA结合结合

Subhendu Karmakar¹, Samuel J Dettmer¹, Catherine A J Hooper¹

¹School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.

Angewandte Chemie (International ed. in English)

|March 15, 2025

概括

研究人员开发了一种新型的金属-超分子圆柱体,该圆柱体只能在被酶NAD(P) H:氨氧化还原酶1 (NQO1) 和其辅因子NADPH激活时结合非正规DNA结点.

科学领域:

超分子化学超分子化学
化学生物学化学生物学
生物技术是生物技术.

背景情况:

非规范性DNA结构在人类疾病和核酸纳米科学中至关重要.
控制这些DNA结构的结合和调制是积极研究的一个领域.
开发针对特定DNA结构的向结合剂是一个关键的挑战.

研究的目的:

设计一种金属超分子剂,能够结合非正规DNA结点.
为了实现酶激活的",命令"控制DNA结节结合.
建立基于酶存在和辅助因子可用性的NAND逻辑控制系统.

主要方法:

开发了一种金属-超分子三螺旋体气,具有可以被酶切割的臂.
使用NAD(P) H:氨酸氧降解酶1 (NQO1) 和尼古丁胺胺氨基二核酸 (NADPH) 进行激活.
使用计算建模来理解绑定激活机制.

主要成果:

设计了一种惰性金属超分子气,在酶降解时变得活跃.
通过酶介导的六个末端子载体臂的去除将圆柱体转化为DNA结节结合剂.
该系统展示了NAND逻辑控制,激活对NQO1,NADPH的反应结合,以及缺乏抑制剂.
计算分析表明形状灵活性变化,而不是硬体解锁,驱动绑定激活.

结论:

开发了一种新的酶激活的超分子系统,用于控制DNA结节结合.
该系统提供精确的"命令"控制,响应特定的生物刺激.
这些发现为设计复杂,惰性超分子结构的基础,这些结构可以被酶激活,用于各种应用.

关键词:

生物无机生物无机在DNA中,三向结是三向结.这是一种DNA识别技术.以酶为媒介的激活金属 - 超分子化学

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