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Nanomanipulation of Single RNA Molecules by Optical Tweezers
Published on: August 20, 2014
作为RNA纳米结构功能化的框架,一个高效的热诱导RNA构造交换机
Xianglan Li1, Satoru Horiya, Kazuo Harada
1Department of Life Sciences, Tokyo Gakugei University, Koganei, Tokyo 184-8501, Japan.
Journal of the American Chemical Society
|March 23, 2006
概括
RNA的"亲吻"相互作用使得可切换纳米结构的创建成为可能. 这种热重新排列可以揭开功能性RNA元素,如结合结构,用于新的应用.
科学领域:
- 生物化学 生物化学
- 纳米技术纳米技术
- 分子生物学分子生物学
背景情况:
- RNA具有独特的相互作用和结构灵活性,这种灵活性在DNA中不存在.
- 可以为特定的功能和动态反应设计RNA结构.
研究的目的:
- 为了证明使用RNA循环-循环相互作用来构建可切换的纳米分子结构.
- 设计热敏的RNA架构,能够揭示功能元素.
主要方法:
- 利用RNA循环-循环 ("接吻") 相互作用来创建循环RNA排列.
- 将HIV的Rev-response元素 (RRE) 转化为RNA基质,以创建一个结开关.
- 研究了用于功能元素揭示的热诱导结构异构化.
主要成果:
- 通过使用"亲吻"复合体成功构建了特定的圆形RNA排列.
- 证明了热异构化到替代结构,有效地揭示了RRE结位.
- 展示了引入多种功能性RNA结构的潜力.
结论:
- RNA"接吻"复合体为构建基于RNA的功能纳米结构提供了强大的框架.
- 热诱导的结构重组可以创建高效的基于RNA的功能开关.
- 这种方法提高了对RNA在生物系统和纳米结构设计中的作用的理解.
相关概念视频
Nucleic acids
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, the...
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, the...
RNA Interference
RNA interference (RNAi) is a process in which a small non-coding RNA molecule blocks the post-transcriptional expression of a gene by binding to its messenger RNA (mRNA) and preventing the protein from being translated.
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
Nucleic Acids
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, the...
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, the...
Riboswitches
Riboswitches are non-coding mRNA domains that regulate the transcription and translation of downstream genes without the help of proteins. Riboswitches bind directly to a metabolite and can form unique stem-loop or hairpin structures in response to the amount of the metabolite present. They have two distinct regions – a metabolite-binding aptamer and an expression platform.
The aptamer has high specificity for a particular metabolite which allows riboswitches to specifically regulate...
The aptamer has high specificity for a particular metabolite which allows riboswitches to specifically regulate...
RNA Interference
RNA interference (RNAi) is a process in which a small non-coding RNA molecule blocks the post-transcriptional expression of a gene by binding to its messenger RNA (mRNA) and preventing the protein from being translated.
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
Nucleic Acid Structure
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 has a double-helix structure. The...
DNA Structure
DNA has a double-helix structure. The...

