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関連する概念動画

Protein Folding01:25

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 Folding01:22

Protein Folding

Overview
Protein Folding01:22

Protein Folding

Overview
Molecular Chaperones and Protein Folding03:00

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...
Molecular Chaperones and Protein Folding03:00

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...
Amyloid Fibrils03:03

Amyloid Fibrils

Amyloid fibrils are aggregates of misfolded proteins.  Under most circumstances, misfolded proteins are either refolded by chaperone proteins or degraded by the proteasome. However, in the case of a mutation or a disease, these proteins can accumulate to form large clusters and often further assemble to form elongated fibers, called fibrils. 
Amyloid deposits were observed as early as 1639 in the liver and the spleen.   In 1854, Rudolph Virchow performed iodine staining, normally used to...

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関連する実験動画

Updated: May 28, 2026

Microfluidic Mixers for Studying Protein Folding
12:42

Microfluidic Mixers for Studying Protein Folding

Published on: April 10, 2012

急速に折りたたむタンパク質の折りたたみ方法

Kresten Lindorff-Larsen1, Stefano Piana, Ron O Dror

  • 1D. E. Shaw Research, New York, NY 10036, USA. kresten.lindorff-larsen@DEShawResearch.com

Science (New York, N.Y.)
|October 29, 2011
PubMed
まとめ
この要約は機械生成です。

タンパク質の折り畳みを理解することは,分子生物学における鍵です. シミュレーションにより,さまざまなタンパク質が予測可能な経路で自発的に原生構造に折り畳まれる共通の原理が明らかになった.

さらに関連する動画

High-Speed Magnetic Tweezers for Nanomechanical Measurements on Force-Sensitive Elements
08:50

High-Speed Magnetic Tweezers for Nanomechanical Measurements on Force-Sensitive Elements

Published on: May 12, 2023

OaAEP1-Mediated Enzymatic Synthesis and Immobilization of Polymerized Protein for Single-Molecule Force Spectroscopy
08:34

OaAEP1-Mediated Enzymatic Synthesis and Immobilization of Polymerized Protein for Single-Molecule Force Spectroscopy

Published on: February 5, 2020

関連する実験動画

Last Updated: May 28, 2026

Microfluidic Mixers for Studying Protein Folding
12:42

Microfluidic Mixers for Studying Protein Folding

Published on: April 10, 2012

High-Speed Magnetic Tweezers for Nanomechanical Measurements on Force-Sensitive Elements
08:50

High-Speed Magnetic Tweezers for Nanomechanical Measurements on Force-Sensitive Elements

Published on: May 12, 2023

OaAEP1-Mediated Enzymatic Synthesis and Immobilization of Polymerized Protein for Single-Molecule Force Spectroscopy
08:34

OaAEP1-Mediated Enzymatic Synthesis and Immobilization of Polymerized Protein for Single-Molecule Force Spectroscopy

Published on: February 5, 2020

科学分野:

  • 分子生物学は分子生物学である.
  • バイオフィジックス 生物物理学
  • コンピュータ生物学 コンピュータ生物学

背景:

  • タンパク質が3次元構造に折り畳まれるのは,分子生物学における根本的なプロセスである.
  • タンパク質の折り畳みを支配する原理を理解することは,依然として重要な科学的な課題です.

研究 の 目的:

  • タンパク質の折り畳みを支える共通の原則を調査する.
  • 原子レベルの詳細を用いて様々なタンパク質の自発的折り畳みをシミュレートする.

主な方法:

  • 原子レベルの分子ダイナミクスシミュレーションが行われました.
  • シミュレーションは100マイクロ秒から1ミリ秒の範囲でした.
  • 物理に基づいた単一のエネルギー関数を使用した.

主要な成果:

  • 12の構造的に多様なタンパク質が,自発的に,そして繰り返し,その原生構造に折りたたまれました.
  • タンパク質の骨格は,折り畳みの初期にネイティブのようなトポロジーを採用した.
  • 折り畳み経路は,しばしば単一の経路が支配され,残留傾向と相関していました.

結論:

  • 構造的に異なったタンパク質の折り畳みを支配する共通の原則があります.
  • シミュレーションは,タンパク質の折り畳みを再現する物理ベースのモデルの能力を実証しています.
  • 折り畳み中の元素形成の順序は予測可能であり,展開状態と関連しています.