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関連する概念動画

Types of RNA01:23

Types of RNA

Overview
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in the regulation of gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA...
Types of RNA01:20

Types of RNA

Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in regulating gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA Performs Diverse...
Types of RNA01:20

Types of RNA

Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in regulating gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA Performs Diverse...
Types of RNA01:23

Types of RNA

Overview
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in the regulation of gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA...
Nucleic Acid Structure01:25

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...
Ribosomal RNA Synthesis02:53

Ribosomal RNA Synthesis

Ribosome synthesis is a highly complex and coordinated process involving more than 200 assembly factors. The synthesis and processing of ribosomal components occurs not only in the nucleolus but also in the nucleoplasm and the cytoplasm of eukaryotic cells.
Ribosome biogenesis begins with the synthesis of 5S and 45S pre-rRNAs by distinct RNA polymerases. The primary transcripts are extensively processed and modified before they are bound and folded by ribosomal proteins and assembly factors,...

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関連する実験動画

Updated: Jun 19, 2026

Folding and Characterization of a Bio-responsive Robot from DNA Origami
07:59

Folding and Characterization of a Bio-responsive Robot from DNA Origami

Published on: December 3, 2015

バクテリアのノンコーディングRNAから作られたナノ構造.

Bastien Cayrol1, Claude Nogues, Alexandre Dawid

  • 1Institut Curie, Research Division, CNRS UMR 168, Paris 75248, France.

Journal of the American Chemical Society
|October 14, 2009
PubMed
まとめ

Escherichia coli DsrA RNAは,反感覚相互作用によってナノ構造に自己組み立てられる. これらの構造は安定した螺旋状の繊維に変化し,DsrAへの影響を示唆しています.

科学分野:

  • 分子生物学は分子生物学である.
  • RNA ナノ構造は,RNA ナノ構造を構成する.
  • バイオフィジックス 生物物理学

背景:

  • 自然のRNAは,合成核酸とは異なり,拡張ナノ構造を形成することはめったにありません.
  • 複雑なRNAナノ構造の形成は,分子生物学における重要な課題である.

研究 の 目的:

  • 自然の非コーディングRNAの自己組み立て能力を調査する.
  • Escherichia coli DsrA RNAのナノ構造の形成を特徴付けるために.

主な方法:

  • 構造的視覚化のための原子力顕微鏡 (AFM).
  • ナノ構造のダイナミクスを観察するための光顕微鏡.
  • 構造的移行を理解するための分子モデリング.

主要な成果:

  • DsrA RNAは,反意味相互作用を通して,ナノ構造の階層に自己組み立てます.
  • これらのナノ構造は,安定した,大きな螺旋状のフィラメント (>100 nm) に容易に変換されます.
  • DsrAフィラメントは,熱と尿素の変性化に対する優れた耐性を示しています.

結論:

さらに関連する動画

DNA-Tethered RNA Polymerase for Programmable In vitro Transcription and Molecular Computation
09:26

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

Published on: December 29, 2021

MS2-Affinity Purification Coupled with RNA Sequencing in Gram-Positive Bacteria
08:34

MS2-Affinity Purification Coupled with RNA Sequencing in Gram-Positive Bacteria

Published on: February 23, 2021

関連する実験動画

Last Updated: Jun 19, 2026

Folding and Characterization of a Bio-responsive Robot from DNA Origami
07:59

Folding and Characterization of a Bio-responsive Robot from DNA Origami

Published on: December 3, 2015

DNA-Tethered RNA Polymerase for Programmable In vitro Transcription and Molecular Computation
09:26

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

Published on: December 29, 2021

MS2-Affinity Purification Coupled with RNA Sequencing in Gram-Positive Bacteria
08:34

MS2-Affinity Purification Coupled with RNA Sequencing in Gram-Positive Bacteria

Published on: February 23, 2021

  • DsrA RNAは,階層的なナノ構造と安定したフィラメントを形成するユニークな能力を示しています.
  • 構造スイッチは,トルション制約の解放によって駆動されます.
  • 発見は,構造的な可塑性に基づいて,DsrA RNAの新たな規制的役割を示唆しています.