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相关概念视频

Recombinant DNA01:09

Recombinant DNA

Overview
DNA as a Genetic Template02:05

DNA as a Genetic Template

Two structural features of the DNA molecule provide a basis for the mechanisms of heredity: the four nucleotide bases and its double-stranded nature. The Watson-Crick model of double-helical DNA structure, proposed in 1952, drew heavily upon the X-ray crystallography work of researchers Rosalind Franklin and Maurice Wilkins. Watson, Crick, and Wilkins jointly received the Nobel Prize in Physiology or Medicine for their work in 1962. Franklin was, controversially, excluded from the prize for...
Recombinant DNA01:09

Recombinant DNA

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Next-generation Sequencing03:00

Next-generation Sequencing

The first human genome sequencing project cost $2.7 billion and was declared complete in 2003, after 15 years of international cooperation and collaboration between several research teams and funding agencies. Today, with the advent of next-generation sequencing technologies, the cost and time of sequencing a human genome have dropped over 100 fold.
Next-Generation Sequencing Methods
Although all next-generation methods use different technologies, they all share a set of standard features.
The Central Dogma01:20

The Central Dogma

The central dogma explains the flow of genetic information from DNA nucleotides to the amino acid sequence of proteins.
RNA is the Missing Link Between DNA and Proteins
In the early 1900s, scientists discovered that DNA stores all the information needed for cellular functions and that proteins perform most of these functions. However, the mechanisms of converting genetic information into functional proteins remained unknown for many years. Initially, it was believed that a single gene is...
DNA as a Genetic Template02:05

DNA as a Genetic Template

Two structural features of the DNA molecule provide a basis for the mechanisms of heredity: the four nucleotide bases and its double-stranded nature. The Watson-Crick model of double-helical DNA structure, proposed in 1952, drew heavily upon the X-ray crystallography work of researchers Rosalind Franklin and Maurice Wilkins. Watson, Crick, and Wilkins jointly received the Nobel Prize in Physiology or Medicine for their work in 1962. Franklin was, controversially, excluded from the prize for...

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相关实验视频

Updated: Jun 25, 2026

Direct Induction of Hemogenic Endothelium and Blood by Overexpression of Transcription Factors in Human Pluripotent Stem Cells
08:14

Direct Induction of Hemogenic Endothelium and Blood by Overexpression of Transcription Factors in Human Pluripotent Stem Cells

Published on: December 3, 2015

一种新的银介导的DNA基因对.

Nicole Zimmermann1, Eric Meggers, Peter G Schultz

  • 1The Scripps Research Institute, Department of Chemistry, 10550 North Torrey Pines Road, La Jolla, California 92037, USA.

Journal of the American Chemical Society
|November 15, 2002
PubMed
概括

研究人员使用银(I) 和胺核基 (SPy) 创建了一个新的DNA基对. 这种人工基因对表现出高稳定性和选择性,与天然DNA基因对相匹配.

科学领域:

  • 合成生物学 合成生物学
  • 生物化学 生物化学
  • 分子生物学分子生物学

背景情况:

  • 不自然基对 (UBP) 的发展对于扩展遗传字母至关重要.
  • 金属基对为DNA应用提供了独特的特性.
  • 银(I) 已被探索其与核基的协调化学.

研究的目的:

  • 为了生成和表征一种新的银(I) 介导的非自然DNA基对.
  • 为了评估这种金属基对的稳定性和选择性.
  • 评估将这种UBP纳入DNA复杂体的可行性.

主要方法:

  • 合成2,6-bis(乙烯基二甲基) 氨酸 (SPy) 核基.
  • 形成以白银为媒介的SPy:SPy基对.
  • 紫外线化实验,以确定双重稳定性和化温度.
  • 通过竞争实验评估基配对的选择性.

主要成果:

  • 一个新的银(I) 介导的非自然DNA基因对,dSPy:dSPy,已成功生成.
  • dSPy:dSPy金属基对表现出高的配对稳定性和选择性,与自然的dA:dT和dC:dG对相美.
  • 紫外线化研究证实,dSPy:dSPy自我对可以在DNA复合体内的多个位置集成,同时保持结构完整性.

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Gene-therapy Inspired Polycation Coating for Protection of DNA Origami Nanostructures

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Last Updated: Jun 25, 2026

Direct Induction of Hemogenic Endothelium and Blood by Overexpression of Transcription Factors in Human Pluripotent Stem Cells
08:14

Direct Induction of Hemogenic Endothelium and Blood by Overexpression of Transcription Factors in Human Pluripotent Stem Cells

Published on: December 3, 2015

Detection of Rare Mutations in CtDNA Using Next Generation Sequencing
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Detection of Rare Mutations in CtDNA Using Next Generation Sequencing

Published on: August 24, 2017

Gene-therapy Inspired Polycation Coating for Protection of DNA Origami Nanostructures
08:30

Gene-therapy Inspired Polycation Coating for Protection of DNA Origami Nanostructures

Published on: January 19, 2019

结论:

  • 这种新型的银(I) 中介的SPy:SPy基对代表了非自然DNA领域的重大进步.
  • 这种金属基对提供了强大的稳定性和选择性,扩大了工程DNA系统的可能性.
  • 成功将dSPy:dSPy纳入DNA复合体,为合成生物学及其他领域的新型应用开辟了道路.