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Updated: Jun 27, 2026

11:48
Detection of Alternative Splicing During Epithelial-Mesenchymal Transition
Published on: October 9, 2014
スプライシング・エンハンスター・コンプレックスは,ダブルセックス・プレ-mRNAの代替スプライシングを制御する
1Harvard University, Department of Biochemistry and Molecular Biology, Cambridge, Massachusetts 02138.
Cell
|July 16, 1993
まとめ
トランスフォーマー (tra) とトランスフォーマー2 (tra2) 遺伝子は,ドロソフィラの雌性特異のスプライシングを調節する. これらのタンパク質は,SRタンパク質とともに,このプロセスに不可欠な複合体を形成します.
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
- 発達生物学 発達生物学について
背景:
- 代替スプライシングは,タンパク質の多様性を生み出すために極めて重要です.
- ドロソフィラのダブルセックス (dsx) 遺伝子の代替スプライシングが性的な運命を決定する.
- トランスフォーマー (tra) とトランスフォーマー2 (tra2) 遺伝子は,dsx splicing. dsx splicing. dsx splicing. dsx splicing. dsx splicing. dsx splicing. dsx splicing. dsx splicing. dsx splicing. dsx splicing.
研究 の 目的:
- トランスフォーマー (tra) とトランスフォーマー2 (tra2) が女性特有の dsx splicing を調節するメカニズムを解明する.
- dsx splicing規制複合体の形成に関与するスプライシング要因を特定する.
主な方法:
- dsxプレ-mRNA.に結合したタンパク質複合体の親和性浄化.
- 精製された複合体内のタンパク質成分の生化学分析.
- In vitro splicing assays は,スプライシング因子の十分性を評価するためのスプライシングアッセイである.
主要な成果:
- TraとTra2は,セリン/アルギニン豊富な (SR) タンパク質を含む一般的なスプライシング因子を,下流の規制要素に採用します.
- Tra,Tra2およびSRタンパク質は,dsxプレ-mRNAを女性特異のスプライシングにコミットするのに十分です.
- コミットメント複合体を形成するSRタンパク質の異なる能力が観察されました.
結論:
- Tra,Tra2およびSRタンパク質は,女性特有のdsxプレ-mRNAスプライシングのための不可欠なスプライシング強化複合体を形成します.
- この複合体は,代替スプライシングを調節することによって,性的発達において重要な役割を果たします.
- この発見は,スプライシングによる遺伝子発現の複雑な調節についての洞察を提供します.
関連する概念動画
RNA 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...
RNA 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...
Chromatin Structure Regulates pre-mRNA Processing
In eukaryotic cells, nascent mRNA transcripts need to undergo many post-transcriptional modifications to reach the cell cytoplasm and translate into functional proteins. For a long time, transcription and pre-mRNA processing were considered two independent events that occur sequentially in the cell. However, it has now been well established that transcription and pre-mRNA processing are two simultaneous processes that are precisely regulated inside the cell.
The chromatin structure, especially...
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Alternative RNA Splicing
Alternative RNA splicing is the regulated splicing of exons and introns to produce different mature mRNAs from a single pre-mRNA. Unlike in constitutive splicing where a single gene produces a single type of mRNA, alternative splicing allows an organism to produce multiple proteins from a single gene and plays an important role in protein diversity.
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...
Pre-mRNA Processing: RNA 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...
Alternative RNA Splicing
Alternative RNA splicing is the regulated splicing of exons and introns to produce different mature mRNAs from a single pre-mRNA. Unlike in constitutive splicing where a single gene produces a single type of mRNA, alternative splicing allows an organism to produce multiple proteins from a single gene and plays an important role in protein diversity.
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...

