関連する実験動画
Updated: Jun 17, 2026

11:32
Mapping RNA-RNA Interactions Globally Using Biotinylated Psoralen
Published on: May 24, 2017
トポロジーは,RNAの二次構造をグローバルコンファメーション,ダイナミクス,適応と結びつける
Maximillian H Bailor1, Xiaoyan Sun, Hashim M Al-Hashimi
1Department of Chemistry and Biophysics, University of Michigan, Ann Arbor, MI 48109, USA.
まとめ
RNAの二次構造には,RNAの接点における3次元ヘリックス方向を予測するトポロジカルな制約が含まれています. 三次接触は,これらの許容された集合体内の特定の構成を安定させ,RNA構造の予測を進めます.
科学分野:
- 構造生物学 構造生物学とは
- コンピュータ生物学 コンピュータ生物学
- バイオフィジックス 生物物理学
背景:
- 確立された熱力学的規則は,RNA配列を二次構造と結びつける.
- RNA二次構造とグローバル3Dコンフォーマーションの関係性は十分に理解されていません.
- RNAのグローバル構成を理解することは,機能の予測に極めて重要です.
研究 の 目的:
- RNAの二次構造と3次元の世界的形状の間の関係を調査する.
- 副次構造がRNA結合におけるヘリックス方向性に関する予測可能な制約をコードしているかどうかを判断する.
- 二次構造に基づいてRNAのグローバル構成を予測するための計算方法を開発する.
主な方法:
- タンパク質データバンクからRNA結合におけるA型ヘリックス方向の3Dマップを構成した.
- 合理化のために計算モデリングと核磁気共鳴 (NMR) スペクトロスコピーを利用しました.
- 二次構造からトポロジカル制約を計算するためのアルゴリズムを開発し,テストしました.
主要な成果:
- 接点のRNA二次構造は,計算可能なトポロジカル制約をコードする.
- これらの制約は,すべての双方向交差点におけるヘリクスの3D方向性を正確に予測します.
- グローバルRNAの構成は,これらの二次構造でコードされたトポロジカル制約によって大きく左右されているようです.
結論:
- RNAの二次構造は,グローバルな3D構造を定義する上で重要な役割を果たします.
- 二次構造内のトポロジカルな制約は,RNAのグローバル形状の主要な予測因子である.
- 三次接触と分子間相互作用は,特定のコンフォマーを微調整し,安定させます.
関連する概念動画
RNA Structure
The basic structure of RNA consists of a string of ribonucleotides attached by phosphodiester bonds. Although most RNA is single-stranded, it can form complex secondary and tertiary structures. Such structures play essential roles in the regulation of transcription and translation.
Different Types of RNA Have the Same Basic Structure
There are three main types of ribonucleic acid (RNA) involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). All three...
Different Types of RNA Have the Same Basic Structure
There are three main types of ribonucleic acid (RNA) involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). All three...
RNA Structure
Overview
The basic structure of RNA consists of a five-carbon sugar and one of four nitrogenous bases. Although most RNA is single-stranded, it can form complex secondary and tertiary structures. Such structures play essential roles in the regulation of transcription and translation.
Different Types of RNA Have the Same Basic Structure
There are three main types of ribonucleic acid (RNA): messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). All three RNA types consist of a...
The basic structure of RNA consists of a five-carbon sugar and one of four nitrogenous bases. Although most RNA is single-stranded, it can form complex secondary and tertiary structures. Such structures play essential roles in the regulation of transcription and translation.
Different Types of RNA Have the Same Basic Structure
There are three main types of ribonucleic acid (RNA): messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). All three RNA types consist of a...
RNA Structure
Overview
The basic structure of RNA consists of a five-carbon sugar and one of four nitrogenous bases. Although most RNA is single-stranded, it can form complex secondary and tertiary structures. Such structures play essential roles in the regulation of transcription and translation.
Different Types of RNA Have the Same Basic Structure
There are three main types of ribonucleic acid (RNA): messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). All three RNA types consist of a...
The basic structure of RNA consists of a five-carbon sugar and one of four nitrogenous bases. Although most RNA is single-stranded, it can form complex secondary and tertiary structures. Such structures play essential roles in the regulation of transcription and translation.
Different Types of RNA Have the Same Basic Structure
There are three main types of ribonucleic acid (RNA): messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). All three RNA types consist of a...
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...
Protein Organization
Overview
Protein Organization
Proteins are polymers of amino acid residues. They are versatile and responsible for different cellular functions, including DNA replication, molecular transport, catalysis, and structural support. Proteins have a hierarchical structure comprising at least three levels of organization: primary, secondary, and tertiary structure. Some large proteins have a quaternary structure where individual protein subunits are linked together.
The primary structure of a protein is its amino acid sequence.
The primary structure of a protein is its amino acid sequence.

