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Updated: Jul 30, 2026

13:52
Coupled Assays for Monitoring Protein Refolding in Saccharomyces cerevisiae
Published on: July 9, 2013
ミトコンドリアにおけるタンパク質の折り畳みは,hsp60とATPの水解による複雑な形成を必要とします
J Ostermann1, A L Horwich, W Neupert
1Institut für Physiologische Chemie der Universität München, FRG.
Nature
|September 14, 1989
まとめ
ミトコンドリアの熱ショックタンパク質60 (hsp60) は,ミトコンドリア内の折りたたみタンパク質を支援します. このプロセスには,hsp60表面のATP媒介反応が関与し,ポリペプチドの放出につながり,hsp60がタンパク質の折り畳みを触媒化することを示唆しています.
科学分野:
- ミトコンドリア生物学 ミトコンドリア生物学
- 分子チャペロンは,分子チャペローンである.
- タンパク質の折りたたみ
背景:
- ミトコンドリア熱ショックタンパク質60 (hsp60) は,ミトコンドリア内のタンパク質の輸入と折り畳みに不可欠です.
- hsp60がタンパク質の折り畳みを促進する正確なメカニズムはまだ調査中です.
研究 の 目的:
- ミトコンドリアタンパク質の折りたたみにおけるhsp60の機能的役割を明らかにする.
- hsp60.0.によるATP媒介タンパク質折り畳みのメカニズムを調査する.
主な方法:
- ミトコンドリア内のタンパク質の輸入と折り畳みに関する研究.
- hsp60.0.を含むATP媒介反応の分析
- hsp60.0.からポリペプチド結合と解放の特徴
主要な成果:
- ミトコンドリアのhsp60は,輸入タンパク質の折り畳みを促進する.
- タンパク質の折り畳みは,ATPに依存するメカニズムを通じてhsp60表面で起こります.
- 結合されたポリペプチドは折りたたまれた後に放出されます.
結論:
- ミトコンドリアのhsp60は,タンパク質の折り畳みの触媒として作用する.
- hsp60とのATP媒介の相互作用は,そのタンパク質折り畳み機能に不可欠である.
関連する概念動画
Protein Folding
Overview
Protein Folding
Overview
Molecular Chaperones and Protein Folding
The native conformation of a protein is formed by interactions between the side chains of its constituent amino acids. When the amino acids cannot form these interactions, the protein cannot fold by itself and needs chaperones. Notably, chaperones do not relay any additional information required for the folding of polypeptides; the native conformation of a protein is determined solely by its amino acid sequence. Chaperones catalyze protein folding without being a part of the folded protein.
The...
The...
Energy to Drive Translocation
Mitochondrial protein import is powered by two distinct energy sources: ATP hydrolysis and electrochemical potential across the inner membrane. Newly synthesized precursors are bound by cytosolic chaperones of the Hsp70 family, which guide them to the import receptors on the mitochondrial surface. Utilizing the energy of ATP hydrolysis, Hsp70 chaperones transfer these precursors to the TOM receptors on the mitochondrial outer membrane.
Generally, polypeptides are unfolded by two distinct...
Generally, polypeptides are unfolded by two distinct...
Protein Folding
Proteins are chains of amino acids linked together by peptide bonds. Upon synthesis, a protein folds into a three-dimensional conformation, critical to its biological function. Interactions between its constituent amino acids guide protein folding, and hence the protein structure is primarily dependent on its amino acid sequence.
Protein Structure Is Critical to Its Biological Function
Proteins perform a wide range of biological functions such as catalyzing chemical reactions, providing...
Protein Structure Is Critical to Its Biological Function
Proteins perform a wide range of biological functions such as catalyzing chemical reactions, providing...
Molecular Chaperones and Protein Folding
The native conformation of a protein is formed by interactions between the side chains of its constituent amino acids. When the amino acids cannot form these interactions, the protein cannot fold by itself and needs chaperones. Notably, chaperones do not relay any additional information required for the folding of polypeptides; the native conformation of a protein is determined solely by its amino acid sequence. Chaperones catalyze protein folding without being a part of the folded protein.
The...
The...

