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Updated: Jul 11, 2026

13:42
RNA Secondary Structure Prediction Using High-throughput SHAPE
Published on: May 31, 2013
She2pは,基本的な螺旋型のヘアピンモチーフを持つ新しいRNA結合タンパク質です
Dierk Niessing1, Stefan Hüttelmaier, Daniel Zenklusen
1Laboratories of Molecular Biophysics and The Rockefeller University, 1230 York Avenue, New York, NY 10021, USA.
Cell
|November 13, 2004
まとめ
研究者らは,酵母における非対称的なmRNA輸送に不可欠なタンパク質であるShe2pの構造を明らかにした. この発見は,新しい種類の核酸結合タンパク質を明らかにし,ASH1 mRNAの輸送メカニズムを明らかにします.
科学分野:
- 分子生物学は分子生物学である.
- 細胞生物学 細胞生物学
- 構造生物学 構造生物学とは
背景:
- リボ核タンパク質粒子 (mRNP) の選択的mRNA輸送は,真核細胞における非対称な情報分布に不可欠である.
- 酵母におけるASH1 mRNAのアクチン依存輸送は,mRNP転位のためのよく研究されたモデルです.
- ASH1 mRNP複合体の形成には,RNA結合タンパク質 She2p が特定の郵便番号要素を認識することを含む.
研究 の 目的:
- RNA結合タンパク質 She2p.p.のX線構造を決定する.
- She2p.のRNA結合特性とメカニズムを特徴づけるために.
- ASH1 mRNP複合組成の開始におけるShe2pの役割を明らかにする.
主な方法:
- 1.95 Aの解像度でShe2pの構造を決定するためのX線結晶学.
- RNA結合親和性と二元依存性を評価するためのインビトロ生化学分析.
- She2p.p.のRNA結合表面のインビトロおよびインビボマッピング
主要な成果:
- X線構造は,She2pが新種の核酸結合タンパク質であり,対称なホモジマーを形成することを明らかにした.
- She2pは強力で,ダイマーに依存したRNA結合を示す.
- RNA結合表面は,基本的な螺旋型のヘアピンにマッピングされ,mRNA認識の洞察を提供しました.
結論:
- She2pは,ユニークな二次元構造を持つ,新しい種類の核酸結合タンパク質を表しています.
- ダイメリゼーションは,She2pの強力なRNA結合活性に不可欠です.
- She2pを含むASH1 mRNPアセンブリをmRNAに依存して開始するメカニズムが提案されています.
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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
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