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Updated: Jul 10, 2026

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Detection of RNA-binding Proteins by In Vitro RNA Pull-down in Adipocyte Culture
Published on: July 22, 2016
アブシシ酸活性化タンパク質キナーゼによるRNA結合タンパク質の調節
Jiaxu Li1, Toshinori Kinoshita, Sona Pandey
1Biology Department, The Pennsylvania State University, 208 Mueller Laboratory, University Park, Pennsylvania 16802, USA. jiax_li@hms.harvard.edu
Nature
|August 16, 2002
まとめ
植物ホルモンのアブシシ酸は,ストレス反応を調節する. アブシシ酸活性化タンパク質キナーゼ (AAPK) は,AKIP1をリン酸化し,ストレス保護タンパク質に対するRNA結合を制御する.
科学分野:
- 植物生物学 植物生物学
- 分子生物学は分子生物学である.
- 細胞シグナリング
背景:
- タンパク質キナーゼは,植物や動物のストレスシグナル伝達経路において重要な役割を果たします.
- アブシシ酸は,干ばつや塩分などの環境ストレスに対する反応を媒介する重要な植物ホルモンです.
- 守護細胞のアブシシ酸活性化タンパク質キナーゼ (AAPK) は,イオンチャネルを調節する.
研究 の 目的:
- アプシシ酸シグナル伝達におけるAAPK相互作用タンパク質1 (AKIP1) の役割を調査する.
- AKIP1がAAPKの基質であり,この相互作用が遺伝子発現にどのように影響するか判断する.
- アプシシ酸への反応におけるAKIP1の亜核局所化と動態を調査する.
主な方法:
- AAPK基質としてのAKIP1の確認のための生化学的分析.
- AKIP1のリン酸化とそのメッセンジャーRNA結合への影響の分析.
- 守護細胞核内のAKIP1の局所を視覚化するための顕微鏡技術.
主要な成果:
- AKIP1はAAPK.の基質として識別されています.
- AAPKによるAKIP1のリン酸化は,脱水素メッセンジャーRNAとの結合に不可欠である.
- アブシシ酸処理は,ガード細胞のAKIP1を含む亜核焦点の形成を誘導する.
結論:
- 異質な核RNA結合タンパク質によるリン酸化依存RNA標的選択は,保存された真核生物のメカニズムである.
- 植物ホルモンは,ストレス反応中にタンパク質の動態と亜核組織を調節することができます.
キーワード:
非プログラム的なものです.関連する概念動画
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Nucleic acids are the most important macromolecules for the continuity of life. They carry the cell's genetic blueprint and carry instructions for its functioning.
DNA and RNA
The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). DNA is the genetic material in all living organisms, ranging from single-celled bacteria to multicellular mammals. It is in the nucleus of eukaryotes and in the organelles, chloroplasts, and mitochondria. In prokaryotes, the...
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The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). DNA is the genetic material in all living organisms, ranging from single-celled bacteria to multicellular mammals. It is in the nucleus of eukaryotes and in the organelles, chloroplasts, and mitochondria. In prokaryotes, the...
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Intact DNA strands can be found in fossils, while scientists sometimes struggle to keep RNA intact under laboratory conditions. The structural variations between RNA and DNA underlie the differences in their stability and longevity. Because DNA is double-stranded, it is inherently more stable. The single-stranded structure of RNA is less stable but also more flexible and can form weak internal bonds. Additionally, most RNAs in the cell are relatively short, while DNA can be up to 250 million...
Nucleic Acids
Nucleic acids are the most important macromolecules for the continuity of life. They carry the cell's genetic blueprint and carry instructions for its functioning.
DNA and RNA
The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). DNA is the genetic material in all living organisms, ranging from single-celled bacteria to multicellular mammals. It is in the nucleus of eukaryotes and in the organelles, chloroplasts, and mitochondria. In prokaryotes, the...
DNA and RNA
The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). DNA is the genetic material in all living organisms, ranging from single-celled bacteria to multicellular mammals. It is in the nucleus of eukaryotes and in the organelles, chloroplasts, and mitochondria. In prokaryotes, the...
RNA Stability
Intact DNA strands can be found in fossils, while scientists sometimes struggle to keep RNA intact under laboratory conditions. The structural variations between RNA and DNA underlie the differences in their stability and longevity. Because DNA is double-stranded, it is inherently more stable. The single-stranded structure of RNA is less stable but also more flexible and can form weak internal bonds. Additionally, most RNAs in the cell are relatively short, while DNA can be up to 250 million...
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RNA editing is a post-transcriptional modification where a precursor mRNA (pre-mRNA) nucleotide sequence is changed by base insertion, deletion, or modification. The extent of RNA editing varies from a few hundred bases, in mitochondrial DNA of trypanosomes, to a just single base, in nuclear genes of mammals. Even a single base change in the pre-mRNA can convert a codon for one amino acid into the codon for another amino acid or a stop codon. This type of re-coding can significantly affect the...
Nucleic Acid Structure
The pentose sugar in DNA is deoxyribose, while in RNA the pentose sugar is ribose. The difference between the sugars is the presence of the hydroxyl group on the ribose's second carbon and a hydrogen on the deoxyribose's second carbon. The phosphate residue attaches to the hydroxyl group of the 5′ carbon of one sugar and the hydroxyl group of the 3′ carbon of the sugar of the next nucleotide, which forms a 5′ to 3′ phosphodiester linkage.
DNA Structure
DNA has a double-helix structure. The...
DNA Structure
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