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相关概念视频

Labeling DNA Probes03:31

Labeling DNA Probes

DNA probes are fragments of DNA labeled with a reporter tag to enable their detection or purification. The resulting labeled DNA probes can then hybridize to target nucleic acid sequences through complementary base-pairing, and may be used to recover or identify these regions.
Radioisotopes, fluorophores, or small molecule binding partners like biotin or digoxigenin, are the most widely used reporter tags for labeling DNA probes. These labels can be attached to the probe DNA molecule via...
Southern Blot02:57

Southern Blot

Agarose gel electrophoresis is very useful in separating DNA fragments by size. Running a DNA ladder containing fragments of the known length alongside the sample helps determine the approximate length of the sample DNA fragments. However, additional steps are needed to verify the sequence identity of the sample DNA fragments.
Denatured DNA fragments must be transferred onto a carrier membrane from the gel to make it accessible to a probe - a small ssDNA fragment complementary to the target DNA...

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相关实验视频

Updated: May 24, 2026

Using Modified Synthetic Oligonucleotides to Assay Nucleic Acid-Metabolizing Enzymes
05:33

Using Modified Synthetic Oligonucleotides to Assay Nucleic Acid-Metabolizing Enzymes

Published on: July 5, 2024

林结合技术的进展.

Steven D Townsend1, Zhongping Tan, Suwei Dong

  • 1Laboratory for Bioorganic Chemistry, Sloan-Kettering Institute for Cancer Research, 1275 York Avenue, New York, New York 10065, USA.

Journal of the American Chemical Society
|February 16, 2012
PubMed
概括
此摘要是机器生成的。

这项研究探讨了N-终端氨酸的原生化学结合,发现氧化二元体中的单基比-氨酸衍生物更能改善结果.

相关实验视频

Last Updated: May 24, 2026

Using Modified Synthetic Oligonucleotides to Assay Nucleic Acid-Metabolizing Enzymes
05:33

Using Modified Synthetic Oligonucleotides to Assay Nucleic Acid-Metabolizing Enzymes

Published on: July 5, 2024

科学领域:

  • 化学生物学是化学生物学.
  • 有机合成 有机合成
  • 酸的化学结构

背景情况:

  • 原生化学结合 (NCL) 是一种用于合成的强大方法.
  • 在NCL中,纳入proline残留物,特别是在N端,在NCL中提出了独特的挑战.
  • 现有的NCL策略需要对林残留进行修改.

研究的目的:

  • 适应原生化学结合策略,用于具有N终端氨酸残留物的.
  • 研究和比较不同的化学方法,以实现高效的结在proline.

主要方法:

  • 为NCL合成3R替代的烯衍生物.
  • 为NCL合成3R替代的醇衍生物.
  • 将这些修改后的プロ林衍生物纳入序列.
  • 使用氧化二聚体策略进行结合.

主要成果:

  • 乙-氨酸衍生方法的成功程度有限.
  • 含有醇的林衍生物在氧化二聚体环境中产生了更好的结合结果.
  • 通过使用二醇策略,证明了NCL与N-终端二醇的可行性.

结论:

  • 原生化学结合可以成功地应用于具有N终端氨酸残留物的.
  • 一种基于单的方法提供了一种有效的策略,以克服与素相关的结合挑战.
  • 这些发现扩大了NCL在合成含蛋白的实用性.