長いノンコーディングRNAは,増強剤の生物学における新しい時代を告げる
Ulf Andersson Ørom1, Ramin Shiekhattar
1Max Planck Institute for Molecular Genetics, 14195 Berlin, Germany.
Cell
|September 17, 2013
まとめ
エンハンサー関連長いノンコーディングRNA (lncRNAs) は,遠隔部位からの遺伝子転写を活性化します. この研究では,強化機能,タンパク質の相互作用,およびクロマチンの構造におけるIncRNAの役割を調査しています.
科学分野:
- 分子生物学は分子生物学である.
- 遺伝学 遺伝学とは
- エピジェネティクス エピジェネティクス
背景:
- 長いノンコーディングRNA (lncRNAs) は,遺伝子発現の重要な調節因子である.
- 増強剤は,転写を制御する規制DNA要素である.
- lncRNAsが強化剤の活性に影響を与える正確なメカニズムは,現在調査中です.
研究 の 目的:
- 強化剤の機能における lncRNA の関与の理解における最近の進歩をレビューする.
- 転写活性化におけるlncRNA発現の役割を明らかにする.
- lncRNAがタンパク質因子と結合し,クロマチンの構造を調節する方法を探求する.
主な方法:
- lncRNAおよび強化剤に関する現在の研究の文献レビュー.
- タンパク質とlncRNAの相互作用を調査した研究の分析.
- lncRNA媒介クロマチンの改造に関するデータの検討.
主要な成果:
- lncRNAsは,標的遺伝子転写を調節するために,染色体間でも,長い距離で作用することができます.
- 特定のlncRNAsは強化剤に採用され,その機能を促進します.
- lncRNAは様々なタンパク質因子と相互作用して,エンハンサー・プロモーターの伝達とクロマチンのアクセシビリティを調節する.
結論:
- lncRNAは,強化剤の機能,橋渡し強化剤,促進剤の重要な構成要素である.
- lncRNA-タンパク質の相互作用とそのクロマチンへの影響を理解することは,遺伝子調節を解読するために不可欠です.
- lncRNAsは,異常遺伝子発現を含む疾患における治療的介入の有望な標的を表しています.
関連する概念動画
lncRNA - Long Non-coding RNAs
In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA (lncRNA)...
lncRNA - Long Non-coding RNAs
In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA (lncRNA)...
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...
RNA Performs Diverse...
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...
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...
RNA Polymerase II Accessory Proteins
Proteins that regulate transcription can do so either via direct contact with RNA Polymerase or through indirect interactions facilitated by adaptors, mediators, histone-modifying proteins, and nucleosome remodelers. Direct interactions to activate transcription is seen in bacteria as well as in some eukaryotic genes. In these cases, upstream activation sequences are adjacent to the promoters, and the activator proteins interact directly with the transcriptional machinery. For example, in...
RNA Polymerase II Accessory Proteins
Proteins that regulate transcription can do so either via direct contact with RNA Polymerase or through indirect interactions facilitated by adaptors, mediators, histone-modifying proteins, and nucleosome remodelers. Direct interactions to activate transcription is seen in bacteria as well as in some eukaryotic genes. In these cases, upstream activation sequences are adjacent to the promoters, and the activator proteins interact directly with the transcriptional machinery. For example, in...

