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Initiation of Translation02:33

Initiation of Translation

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Initiation of Translation02:33

Initiation of Translation

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Initiating translation is complex because it involves multiple molecules. Initiator tRNA, ribosomal subunits, and eukaryotic initiation factors (eIFs) are all required to assemble on the initiation codon of mRNA. This process consists of several steps that are mediated by different eIFs.
First, the initiator tRNA must be selected from the pool of elongator tRNAs by eukaryotic initiation factor 2 (eIF2). The initiator tRNA (Met-tRNAi) has conserved sequence elements including modified bases at...
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Translation01:31

Translation

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Lesson: Translation
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...
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Translation01:31

Translation

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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
Proteins are...
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Translation01:31

Translation

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Translation01:31

Translation

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Xenopus laevis as a Model to Identify Translation Impairment
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翻訳開始の詳細を詳しく見てみました.

Andrei A Korostelev1

  • 1RNA Therapeutics Institute, Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, 368 Plantation Street, Worcester, MA 01605, USA.

Cell
|November 24, 2014
PubMed
まとめ

ユカリオットトランスレーションの開始には,小さなリボソームサブユニット上のアセンブリファクターを組み込み,mRNAのスタートコドンを見つけます. 新しい研究は,この重要な細胞プロセスの初期と後期の段階に関する重要な洞察を明らかにしています.

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
  • バイオケミストリー バイオケミストリー

背景:

  • ユカリオットの翻訳開始は複雑なプロセスです.
  • それは複数のタンパク質因子の組み立てを必要とします.
  • 精密なスタートコドン選択は,タンパク質合成に不可欠です.

研究 の 目的:

  • ユカリオットの翻訳開始に関する新しい洞察を提供するために.
  • 早期および遅いイニシアチブの中間品を調査する.
  • スタートコドン選択のメカニズムを解明する.

主な方法:

  • 初期の翻訳開始の中間手段の分析.
  • 遅い翻訳開始の中間手段の調査.
  • 発起因子の構造的・機能的研究.

主要な成果:

  • 初期発症複合体の詳細な特徴.
  • 遅発の中間物質における構造変化の解明.
  • 特定のイニシアチブファクターの重要な役割の特定.

結論:

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関連する実験動画

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Toeprinting Analysis of Translation Initiation Complex Formation on Mammalian mRNAs
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  • ユカリオットの翻訳開始経路に関する新しい理解.
  • 翻訳機械の動的組み立てに関する洞察.
  • mRNAの知識への貢献は,コドン選択メカニズムを起動します.