翻訳の先駆者ラウンド:特徴と機能
Lynne E Maquat1, Woan-Yuh Tarn, Olaf Isken
1Department of Biochemistry and Biophysics and Center for RNA Biology, School of Medicine and Dentistry, University of Rochester, Rochester, NY 14642, USA. lynne_maquat@urmc.rochester.edu
Cell
|August 10, 2010
まとめ
哺乳類の細胞は,品質管理のために新しいmRNAsの特別な最初の翻訳を使用します. このパイオニアラウンドは,他の要因とともに,タンパク質の生産と細胞の機能に不可欠です.
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
- 遺伝学 遺伝学とは
背景:
- 哺乳類の細胞で新たに合成されたメッセンジャーRNA (mRNA) は,パイオニアラウンドとして知られるユニークな初期翻訳段階を経る.
- このプロセスは,一般的なタンパク質合成が始まる前にmRNAの品質を確保するために不可欠です.
- メッセンジャーリボヌクレオプロテイン粒子 (mRNA) は,このパイオニアラウンドの間,そしてその後に成熟し,その後の翻訳サイクルのためにそれらを準備します.
研究 の 目的:
- 哺乳類の細胞におけるmRNA翻訳の先駆的なラウンドの重要性を明らかにする.
- 遺伝子発現のこの重要な初期段階を支配する規制メカニズムを理解するために.
- mRNA品質管理の先駆者ラウンドにおける特定の要因の役割を強調する.
主な方法:
- 哺乳類の細胞系におけるmRNA処理と翻訳開始の分析.
- パイオニアラウンドに関与する特定の翻訳因子およびRNA結合タンパク質の特定.
- 新しく合成されたmRNAsを調節するシグナル伝達経路の標的の調査.
主要な成果:
- 翻訳の先駆的なラウンドは,哺乳類の細胞におけるmRNA品質管理に不可欠です.
- メッセンジャーリボヌクレオプロテイン粒子の成熟は,パイオニアラウンドの間,そしてその後に起こる重要な出来事です.
- 特定の翻訳因子,RNA結合タンパク質,信号経路の成分は,先駆者ラウンド中に新たに合成されたmRNAの機能を調節する.
結論:
- パイオニアラウンドはmRNAの品質と機能の重要なチェックポイントです.
- 特定の分子プレーヤーによるパイオニアラウンドの規制は,適切なタンパク質合成を保証します.
- パイオニアラウンドの理解は,遺伝子発現の調節と細胞ホメオスタシスの洞察を提供します.
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01:31Translation
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Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of Life
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of Life
01:31Translation
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of Life
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Translation Produces the Building Blocks of Life
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