関連する実験動画
Updated: May 7, 2026
11:32
Analysis of mRNA Nuclear Export Kinetics in Mammalian Cells by Microinjection
Published on: December 4, 2010
転写,スプライシング,およびリリース:私たちはまだそこにありますか?
Ranjan Sen1, Sebastian D Fugmann
1Laboratory of Molecular Biology and Immunology, National Institute on Aging, 251 Bayview Boulevard, Baltimore, MD 21224, USA. ranjan.sen@nih.gov
Cell
|July 24, 2012
まとめ
Bhatt et al.によると,マクロファージの炎症反応は,転写開始によって制御されます. イントロンを持つ全長RNAは,機能的なmRNAになる前に処理のためにクロマチンに蓄積されます.
科学分野:
- 分子生物学は分子生物学である.
- 免疫学 免疫学とは
- 遺伝子規制 遺伝子規制
背景:
- リポポリサッカリド (LPS) は,マクロファージの炎症反応の強力な活性化剤です.
- LPSのような刺激に対する細胞の反応を理解するために,遺伝子発現の調節は非常に重要です.
- 以前の研究では,転写後の調節が炎症性遺伝子発現に重要な役割を果たしていると示唆されていました.
研究 の 目的:
- LPS刺激後のマクロファージの遺伝子発現の変化を体系的に分析する.
- 炎症性遺伝子発現を制御する規制メカニズムを調査する.
主な方法:
- 遺伝子発現の体系的な分析.
- 新生RNAの蓄積と処理の分析.
- クロマチンベースのRNA研究.
主要な成果:
- 炎症反応は,主に転写開始のレベルで調節されます.
- イントロンを含む全長新生RNAは,クロマチンに蓄積する.
- 内部RNAの蓄積は,機能的なmRNAの放出と細胞プラズマの輸出に先行する.
結論:
- トランスクリプションの開始は,LPS誘発の炎症性遺伝子発現の重要なコントロールポイントです.
- 新生RNAの処理とクロマチンの保持は,mRNAの産生において重要な役割を果たします.
- これは,転写と統合された転写後の規制の新しい層を示唆しています.
関連する概念動画
01:10Transcription
Overview
Transcription is the process of synthesizing RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in the proper synthesis of messenger RNA (mRNA). Regulation of transcription is responsible for the differentiation of all the different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds...
Transcription is the process of synthesizing RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in the proper synthesis of messenger RNA (mRNA). Regulation of transcription is responsible for the differentiation of all the different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds...
01:32RNA Splicing
Splicing is the process by which eukaryotic RNA is edited before its translation into protein. The RNA strand transcribed from eukaryotic DNA is called the primary transcript. The primary transcripts that become mRNAs are called precursor messenger RNAs (pre-mRNAs). Eukaryotic pre-mRNA contains alternating sequences of exons and introns. Exons are nucleotide sequences that code for proteins, whereas introns are the non-coding regions. In RNA splicing, introns are removed and exons are bonded...
01:10Transcription
Overview
Transcription is the process of synthesizing RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in the proper synthesis of messenger RNA (mRNA). Regulation of transcription is responsible for the differentiation of all the different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds...
Transcription is the process of synthesizing RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in the proper synthesis of messenger RNA (mRNA). Regulation of transcription is responsible for the differentiation of all the different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds...
01:32RNA Splicing
Splicing is the process by which eukaryotic RNA is edited before its translation into protein. The RNA strand transcribed from eukaryotic DNA is called the primary transcript. The primary transcripts that become mRNAs are called precursor messenger RNAs (pre-mRNAs). Eukaryotic pre-mRNA contains alternating sequences of exons and introns. Exons are nucleotide sequences that code for proteins, whereas introns are the non-coding regions. In RNA splicing, introns are removed and exons are bonded...
01:17Transcription
Transcription is the synthesis of RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in correctly synthesizing messenger RNA (mRNA). Transcriptional regulation is responsible for the differentiation of different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds of RNA Molecules
In eukaryotes,...
Transcription Can Produce Different Kinds of RNA Molecules
In eukaryotes,...
01:17Transcription
Transcription is the synthesis of RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in correctly synthesizing messenger RNA (mRNA). Transcriptional regulation is responsible for the differentiation of different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds of RNA Molecules
In eukaryotes,...
Transcription Can Produce Different Kinds of RNA Molecules
In eukaryotes,...