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相关概念视频

Single-Strand DNA Binding Proteins01:03

Single-Strand DNA Binding Proteins

14.0K
For successful DNA replication, the unwinding of double-stranded DNA must be accompanied by stabilization and protection of the separated single strands of the DNA. This crucial task is performed by single-strand DNA-binding (SSB) proteins. They bind to the DNA in a sequence-independent manner, which means that the nitrogenous bases of the DNA need not be present in a specific order for binding of SSB proteins to it. The binding of SSB proteins straightens single-stranded DNA (ssDNA) and makes...
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Cooperative Binding of Transcription Regulators02:13

Cooperative Binding of Transcription Regulators

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Transcriptional regulators bind to specific cis-regulatory sequences in the DNA to regulate gene transcription. These cis-regulatory sequences are very short, usually less than ten nucleotide pairs in length. The short length means that there is a high probability of the exact same sequence randomly occurring throughout the genome.  Since regulators can also bind to groups of similar sequences, this further increases the chances of random binding. Transcriptional regulators form...
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相关实验视频

Updated: Jun 10, 2025

Single-molecule Manipulation of G-quadruplexes by Magnetic Tweezers
08:28

Single-molecule Manipulation of G-quadruplexes by Magnetic Tweezers

Published on: September 19, 2017

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工程可调节的捕获纽带与DNA配合.

Micah Yang1, David T R Bakker1, Isaac T S Li2

  • 1Department of Chemistry, The University of British Columbia, Kelowna, BC, Canada.

Nature communications
|October 12, 2024
PubMed
概括
此摘要是机器生成的。

研究人员开发了一种可调节的DNA"鱼"捕获键. 这种新的生物材料在张力下增强,为设计生物相互作用和应力材料提供了新的可能性.

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DNA Tension Probes to Map the Transient Piconewton Receptor Forces by Immune Cells
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DNA Tension Probes to Map the Transient Piconewton Receptor Forces by Immune Cells

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DNA-Tethered RNA Polymerase for Programmable In vitro Transcription and Molecular Computation
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DNA-Tethered RNA Polymerase for Programmable In vitro Transcription and Molecular Computation

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相关实验视频

Last Updated: Jun 10, 2025

Single-molecule Manipulation of G-quadruplexes by Magnetic Tweezers
08:28

Single-molecule Manipulation of G-quadruplexes by Magnetic Tweezers

Published on: September 19, 2017

7.9K
DNA Tension Probes to Map the Transient Piconewton Receptor Forces by Immune Cells
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DNA-Tethered RNA Polymerase for Programmable In vitro Transcription and Molecular Computation
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DNA-Tethered RNA Polymerase for Programmable In vitro Transcription and Molecular Computation

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科学领域:

  • 生物物理学的生物物理.
  • 材料科学 材料科学 材料科学
  • 合成生物学 合成生物学

背景情况:

  • 生物捕获纽带在应用于张力时独特地加强,这对于细胞粘附和机械感知至关重要.
  • 现有的人工捕捞纽带缺乏可调节的特性,限制了它们的应用.
  • 了解和工程捕获纽带动态对于生物和材料科学至关重要.

研究的目的:

  • 设计和创建一个新的,可调节的基于DNA的人工捕获纽带.
  • 使用这种新设计来展示各种可调节的捕获行为.
  • 探索这种DNA捕获键的潜力,用于重新编程生物相互作用和创建先进材料.

主要方法:

  • 基于机械模型的DNA结构的理性设计.
  • 使用单分子力谱学的实验验验证.
  • 对依赖序列的捕获行为进行表征.

主要成果:

  • 成功创建了具有可调节性质的"鱼"DNA捕获键.
  • 通过DNA序列控制的广泛捕捞行为.
  • 对设计的捕捞纽带机制进行实验验证.

结论:

  • "鱼"DNA捕获键提供了前所未有的捕能力.
  • 这种架构为工程强力增强材料提供了一个多功能平台.
  • 它具有重编程生物相互作用和机械感知应用的巨大潜力.