関連する概念動画
01:31Translation
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 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
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 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
01:32RNA 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...
02:18Alternative 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...
01:38Nucleotide Excision Repair
DNA Distortion and Damage
Cells are regularly exposed to mutagens—factors in the environment that can damage DNA and generate mutations. UV radiation is one of the most common mutagens and is estimated to introduce a significant number of changes in DNA. These include bends or kinks in the structure, which can block DNA replication or transcription. If these errors are not fixed, the damage can cause mutations, which in turn can result in cancer or disease depending on which sequences are...
Cells are regularly exposed to mutagens—factors in the environment that can damage DNA and generate mutations. UV radiation is one of the most common mutagens and is estimated to introduce a significant number of changes in DNA. These include bends or kinks in the structure, which can block DNA replication or transcription. If these errors are not fixed, the damage can cause mutations, which in turn can result in cancer or disease depending on which sequences are...
01:08Nucleotide Excision Repair
Overview
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Updated: Jun 25, 2026
10:49
Measuring RAN Peptide Toxicity in C. elegans
Published on: April 30, 2020
RNAと病気について
Thomas A Cooper1, Lili Wan, Gideon Dreyfuss
1Department of Pathology, Baylor College of Medicine, Houston, TX 77030, USA. tcooper@bcm.tmc.edu
Cell
|February 26, 2009
まとめ
細胞の機能はRNA-タンパク質複合体 (RNP) に依存しています. RNAまたはタンパク質の変異はRNPを破壊し,病気を引き起こしますが,新しい治療目標とRNAベースのツールも提供します.
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
- バイオケミストリー バイオケミストリー
背景:
- 細胞の機能は,RNAとRNA結合タンパク質を含むリボヌクレオプロテイン複合体 (RNPs) によってオーケストラされます.
- 変異によるRNPコンポーネントまたはアセンブリファクターの障害は,有害な細胞的結果につながる可能性があります.
- 代替スプライシングは,トランスクリプトームとプロテオームの微調整のための重要なメカニズムですが,その複雑さは,病気を引き起こす突然変異に対する感受性を高めます.
研究 の 目的:
- 細胞機能におけるRNA-タンパク質相互作用の重要な役割を強調する.
- RNAの突然変異と病気の関連性を強調するために.
- RNA生物学の理解から生じる治療の可能性を強調する.
主な方法:
- この研究は,分子生物学,遺伝学,生化学の知識を統合しています.
- RNA生物学,リボ核タンパク質複合体,代替スプライシングに関する既存の文献をレビューしています.
- 焦点は,RNAとタンパク質の成分に対する突然変異の影響を分析することです.
主要な成果:
- RNPのRNAまたはタンパク質成分に影響する変異は,細胞機能を損なう可能性があります.
- 代替スプライシングは,細胞の調節に不可欠ですが,突然変異と誤調節のための多くのポイントを提示します.
- RNAの病気を引き起こす変異を特定することは,新しい治療戦略の道を開きます.
結論:
- RNA結合タンパク質の複雑なネットワークとその相互作用を理解することは,細胞の健康と病気を理解するために不可欠です.
- RNAベースの治療法は,RNA生物学と化学の進歩によって推進され,有望な境界線として浮上しています.
- RNA変異をターゲットにすることは,様々な病気に対する革新的な治療の開発のための新しいパラダイムを提供します.