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相关概念视频

Nucleic Acids02:43

Nucleic Acids

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Nucleic acids are the most important macromolecules for the continuity of life. They carry the cell's genetic blueprint and carry instructions for its functioning.
DNA and RNA
The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). DNA is the genetic material in all living organisms, ranging from single-celled bacteria to multicellular mammals. It is in the nucleus of eukaryotes and in the organelles, chloroplasts, and mitochondria. In prokaryotes,...
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Nucleic acids02:43

Nucleic acids

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Nucleic acids are the most important macromolecules for the continuity of life. They carry the cell's genetic blueprint and carry instructions for its functioning.
DNA and RNA
The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). DNA is the genetic material in all living organisms, ranging from single-celled bacteria to multicellular mammals. It is in the nucleus of eukaryotes and in the organelles, chloroplasts, and mitochondria. In prokaryotes,...
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Nucleic Acids02:43

Nucleic Acids

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Nucleic Acid Structure01:25

Nucleic Acid Structure

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The pentose sugar in DNA is deoxyribose, while in RNA the pentose sugar is ribose. The difference between the sugars is the presence of the hydroxyl group on the ribose's second carbon and a hydrogen on the deoxyribose's second carbon. The phosphate residue attaches to the hydroxyl group of the 5′ carbon of one sugar and the hydroxyl group of the 3′ carbon of the sugar of the next nucleotide, which forms  a 5′ to 3′ phosphodiester linkage.
DNA Structure
DNA...
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Nucleic Acids and Nucleotides01:20

Nucleic Acids and Nucleotides

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Nucleic acids are the most important macromolecules for the continuity of life. They carry the cell's genetic blueprint and have instructions for its functioning. The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).
Deoxyribonucleic Acid (DNA)
DNA is the genetic material in all living organisms, ranging from single-celled bacteria to multicellular mammals. It is in the nucleus of eukaryotes and the organelles such as chloroplasts and mitochondria....
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Biosynthesis of Nucleic Acids01:28

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Nucleic acid biosynthesis is a fundamental biochemical process that produces the purine and pyrimidine nucleotides essential for DNA and RNA synthesis. This pathway maintains a balanced nucleotide pool, preventing imbalances that could jeopardize genetic integrity and cellular function. Given the crucial role of nucleotides, their synthesis is tightly regulated to ensure proper cellular homeostasis.Purine BiosynthesisThe biosynthesis of purine nucleotides begins with ribose-5-phosphate, a...
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Kinetic Screening of Nuclease Activity using Nucleic Acid Probes
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核酸框架的概念和发展

Zhilei Ge1, Hongzhou Gu2, Qian Li1

  • 1School of Chemistry and Chemical Engineering, and Institute of Molecular Medicine, Renji Hospital, School of Medicine , Shanghai Jiao Tong University , Shanghai 200240 , China.

Journal of the American Chemical Society
|December 6, 2018
PubMed
概括
此摘要是机器生成的。

结构性DNA纳米技术利用核酸特性来构建精确的纳米结构. 框架核酸 (FNA) 允许纳米级组织在科学和医学上广泛应用.

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科学领域:

  • 结构DNA纳米技术
  • 核酸自组装
  • 纳米材料科学

背景情况:

  • DNA和RNA表现出精确的沃森-克里克基配对,使复杂的1D,2D和3D纳米结构的创建成为可能.
  • 计算机辅助设计工具可以自动创建多种DNA纳米结构.
  • 框架核酸 (FNA) 正在成为分子组织的多功能平台.

研究的目的:

  • 突出设计和制造精密组装的FNA的最新技术.
  • 概述FNA目前的挑战和未来的机遇.
  • 探索FNA在各种应用中的转化潜力.

主要方法:

  • 利用沃森-克里克基配对进行可编程自组装.
  • 使用计算机辅助工具进行自动化纳米结构设计.
  • 构建外或骨DNA框架 (FNA).

主要成果:

  • 一到三维精致的核酸纳米结构的开发.
  • 创建FNA以纳米精度组织分子和纳米粒子.
  • 证明FNA的内在生物特性和可定制的功能.

结论:

  • FNA是纳米规模组织的强大工具,具有巨大的潜力.
  • 进一步研究FNA的设计和构造可以释放各种物理,化学和生物应用.
  • 利用FNA的结构潜力为转化研究和开发提供了有前途的途径.