相关实验视频

Updated: Jul 27, 2025

Combining Single-molecule Manipulation and Imaging for the Study of Protein-DNA Interactions

Combining Single-molecule Manipulation and Imaging for the Study of Protein-DNA Interactions

Published on: August 27, 2014

通过机械操纵和AFM成像研究单个DNA分子的DNA结合蛋白

Xiaodan Zhao^1,2, Xuyao Priscilla Liu^1,2, Jie Yan^1,3,2

¹Department of Physics, National University of Singapore, Singapore 117542, Singapore.

Biophysics reports

|June 8, 2023

概括

这篇评论探讨了如何将单个DNA成像和机械操纵结合起来,揭示了对DNA结合蛋白的洞察力. 这些技术允许直接探测蛋白质-DNA相互作用,DNA扭曲和结合动力学.

科学领域:

分子生物学分子生物学
生物物理学的生物物理.
生物化学生物化学

背景情况:

结合DNA的蛋白质功能依赖于DNA序列,结构和结合动力学.
单分子技术的进步使得蛋白质-DNA相互作用的直接观察成为可能.

研究的目的:

审查单个DNA成像和机械操纵的综合应用,以研究DNA-蛋白相互作用.
提供对DNA结构蛋白的作用的见解.

主要方法:

使用原子力显微镜进行单个DNA成像.
在单个DNA分子研究中采用机械操纵.
结合成像和操纵来探测蛋白质-DNA结合特征.

主要成果:

通过蛋白质直接探测DNA结合.
蛋白质-DNA结合动力学和亲和力的量化.
研究蛋白质结合与DNA形状和拓学的相互作用.

结论:

综合方法为DNA与蛋白质相互作用提供了新的见解.
通过这些先进的技术,对DNA结构蛋白的理解得到了增强.

关键词:

在AFM成像中使用AFM成像.在DNA扭曲,扭曲DNA.在DNA超级线圈中,超级线圈是DNA.DNA与蛋白质的相互作用一个磁性子.光学子是一种光学子.单分子操纵的操作方法

更多相关视频

Visualization of Recombinant DNA and Protein Complexes Using Atomic Force Microscopy

Visualization of Recombinant DNA and Protein Complexes Using Atomic Force Microscopy

Published on: July 18, 2011

Atomic Force Microscopy Investigations of DNA Lesion Recognition in Nucleotide Excision Repair

Atomic Force Microscopy Investigations of DNA Lesion Recognition in Nucleotide Excision Repair

Published on: May 24, 2017

相关概念视频

Atomic Force Microscopy

Atomic Force Microscopy

Atomic force microscopy (AFM) is a type of scanning probe microscopy that can analyze topographic details of various specimens like ceramics, glass, polymers, and biological samples. AFM offers over 1000 times more resolution than the optical imaging system. Images generated from AFM are three-dimensional surface profiles, offering an advantage over the flat, two-dimensional images from other imaging techniques.
The AFM Probe
The probe is regarded as the heart of any AFM setup and comprises the...

Studying the Cytoskeleton

Studying the Cytoskeleton

The cytoskeletal architecture can be studied using different microscopic and biochemical techniques. Electron microscopy was instrumental in discovering the cytoskeletal architecture around the 1960s, which allowed obtaining structural information at a high-resolution level. However, the sample preparation procedure often limits this ability in biological samples. Several protocols have been developed over the years to optimize sample preparation. In one of the protocols known as rotary...