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相关概念视频

¹H NMR of Conformationally Flexible Molecules: Temporal Resolution00:52

¹H NMR of Conformationally Flexible Molecules: Temporal Resolution

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At room temperature, the chair conformer of cyclohexane undergoes rapid ring flipping between two equivalent chair conformers at a rate of approximately 105 times per second. These two chair conformers are in equilibrium. The rapid ring flipping results in the interconversion of the axial proton to an equatorial proton and an equatorial to the axial proton. Such interconversions are too rapid and cannot be detected on the NMR timescale. Hence, the NMR spectrometer cannot distinguish between the...
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Structural Information from Single-molecule FRET Experiments Using the Fast Nano-positioning System
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跨序列空间的单分子结构和动力学研究

Ivo Severins1,2, Carolien Bastiaanssen1, Sung Hyun Kim1,3

  • 1Department of BioNanoScience, Kavli Institute of Nanoscience, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, the Netherlands.

Science (New York, N.Y.)
|August 22, 2024
PubMed
概括
此摘要是机器生成的。

我们开发了一种新方法,即单分子并行分析以快速探索序列空间 (SPARXS), 分析数百万个分子, 揭示DNA重组等过程中的序列功能关系.

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科学领域:

  • 分子生物学
  • 生物物理
  • 遗传学

背景情况:

  • 了解DNA序列,结构和功能之间的关系至关重要.
  • 单分子技术提供了动态洞察力,但往往受测试吞吐量限制.
  • 选大型序列库的功能仍然是分子研究中的瓶.

研究的目的:

  • 引入一种高通量方法,SPARXS,用于分析依赖序列的分子动力学.
  • 应用SPARXS来研究同源重组中的霍莱德结的序列特异动力学.
  • 展示SPARXS在发现序列模式和构建热力学模型方面的能力.

主要方法:

  • 单分子光与下一代测序的整合.
  • 开发单分子并行分析以快速探索序列空间 (SPARXS).
  • 在数以千计的序列中研究数以百万计的霍利德连接分子.

主要成果:

  • SPARXS能够对分子动力学和序列功能关系进行高通量分析.
  • 这项研究揭示了控制霍莱德连接运动的序列模式和动机.
  • 基于广泛的序列数据成功构建了热力学模型.

结论:

  • SPARXS是一种高通量,基于序列的分子分析的多功能工具.
  • 该方法有助于在分子层面研究特定序列机制.
  • SPARXS有助于理解DNA重组和其他依赖序列的生物过程.