関連する実験動画
Updated: Jul 10, 2026

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RiboTag Immunoprecipitation in the Germ Cells of the Male Mouse
Published on: March 4, 2020
まとめ
ネズミのリボソームタンパク質 (r-タンパク質) 遺伝子ファミリーは,複数の染色体に分布しており,この研究で観察されたrRNA遺伝子との有意なクラスタリングまたはリンクはありません.
科学分野:
- 遺伝学 遺伝学とは
- 分子生物学は分子生物学である.
- ゲノミクスゲノミクスとは
背景:
- リボソームタンパク質 (r-タンパク質) は,タンパク質合成に不可欠なリボソームの重要な成分です.
- r-タンパク質遺伝子のゲノム組織と染色体分布を理解することは,遺伝子調節と進化の洞察を提供します.
研究 の 目的:
- マウスの5つのrタンパク質遺伝子ファミリー (S16,L18,L19,L30,L32/33) の染色体位置を決定する.
- これらの遺伝子ファミリーの潜在的なクラスタリングと,リボソームRNA (rRNA) 遺伝子との関連性を調査する.
主な方法:
- サザンブレット分析は,マウスとハムスターのハイブリッド細胞のパネルから得られたDNAで実施されました.
- これらのハイブリッド細胞にはマウス染色体の特定の補完物が含まれており,遺伝子マッピングを可能にしました.
主要な成果:
- 個々のr-タンパク質遺伝子ファミリーのメンバーは,1つ以上の染色体に位置することが判明しました.
- 限られた数の染色体上に複数のr-タンパク質遺伝子ファミリーの広範なクラスタリングは不可能と判断された.
- r-タンパク質遺伝子とrRNA遺伝子の間の強制的なリンクは検出されなかった.
結論:
- マウスのrタンパク質遺伝子は染色体分布が分散している.
- 研究されたr-タンパク質遺伝子ファミリーは,広範な共同局所化の傾向を示さない.
- Rタンパク質遺伝子とrRNA遺伝子は,マウスのゲノムに独立して位置しています.
関連する概念動画
Ribosomes
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Ribosomal RNA Synthesis
Ribosome synthesis is a highly complex and coordinated process involving more than 200 assembly factors. The synthesis and processing of ribosomal components occurs not only in the nucleolus but also in the nucleoplasm and the cytoplasm of eukaryotic cells.
Ribosome biogenesis begins with the synthesis of 5S and 45S pre-rRNAs by distinct RNA polymerases. The primary transcripts are extensively processed and modified before they are bound and folded by ribosomal proteins and assembly factors,...
Ribosome biogenesis begins with the synthesis of 5S and 45S pre-rRNAs by distinct RNA polymerases. The primary transcripts are extensively processed and modified before they are bound and folded by ribosomal proteins and assembly factors,...
Ribosome Profiling
Ribosome profiling or ribo-sequencing is a deep sequencing technique that produces a snapshot of active translation in a cell. It selectively sequences the mRNAs protected by ribosomes to get an insight into a cell’s translation landscape at any given point in time.
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique helps...
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique helps...
Ribosomal RNA Synthesis
Ribosome synthesis is a highly complex and coordinated process involving more than 200 assembly factors. The synthesis and processing of ribosomal components occurs not only in the nucleolus but also in the nucleoplasm and the cytoplasm of eukaryotic cells.
Ribosome biogenesis begins with the synthesis of 5S and 45S pre-rRNAs by distinct RNA polymerases. The primary transcripts are extensively processed and modified before they are bound and folded by ribosomal proteins and assembly factors,...
Ribosome biogenesis begins with the synthesis of 5S and 45S pre-rRNAs by distinct RNA polymerases. The primary transcripts are extensively processed and modified before they are bound and folded by ribosomal proteins and assembly factors,...
Ribosomes
Ribosomes translate genetic information encoded by messenger RNA (mRNA) into proteins. Both prokaryotic and eukaryotic cells have ribosomes. Cells that synthesize large quantities of protein—such as secretory cells in the human pancreas—can contain millions of ribosomes.
Ribosome Structure and Assembly
Ribosomes are composed of ribosomal RNA (rRNA) and proteins. In eukaryotes, rRNA is transcribed from genes in the nucleolus—a part of the nucleus that specializes in ribosome production. Within...
Ribosome Structure and Assembly
Ribosomes are composed of ribosomal RNA (rRNA) and proteins. In eukaryotes, rRNA is transcribed from genes in the nucleolus—a part of the nucleus that specializes in ribosome production. Within...
Ribosomes
Ribosomes translate genetic information encoded by messenger RNA (mRNA) into proteins. Both prokaryotic and eukaryotic cells have ribosomes. Cells that synthesize large quantities of protein—such as secretory cells in the human pancreas—can contain millions of ribosomes.
Ribosome Structure and Assembly
Ribosomes are composed of ribosomal RNA (rRNA) and proteins. In eukaryotes, rRNA is transcribed from genes in the nucleolus—a part of the nucleus that specializes in ribosome production. Within...
Ribosome Structure and Assembly
Ribosomes are composed of ribosomal RNA (rRNA) and proteins. In eukaryotes, rRNA is transcribed from genes in the nucleolus—a part of the nucleus that specializes in ribosome production. Within...

