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関連する概念動画

Protein Folding01:25

Protein Folding

8.8K
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...
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Protein Dynamics in Living Cells01:19

Protein Dynamics in Living Cells

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Different fluorescence-based techniques are used to study the protein dynamics in living cells. These techniques include FRAP, FRET, and PET.
Fluorescent recovery after photobleaching (FRAP) is a fluorescent-protein-based detection technique used to quantify protein movement rates within the cell. This method exposes a small portion of the cell to an intense laser beam. The laser beam causes permanent photobleaching of the fluorophore-tagged proteins in the exposed region. As the bleached...
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Protein-protein Interfaces02:04

Protein-protein Interfaces

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Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a...
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Conservation of Protein Domains Over Different Proteins02:26

Conservation of Protein Domains Over Different Proteins

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Protein domains are small structurally independent units that are part of a single amino acid chain.  Although these domains are often structurally independent, they may rely on synergistic effects to perform their functions as part of a larger protein. Protein domains may be conserved within the same organism, as well as across different organisms.
A limited set of protein domains often duplicate and recombine during evolution. These domains can be organized in different combinations to...
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Directing Proteins to the Rough Endoplasmic Reticulum01:34

Directing Proteins to the Rough Endoplasmic Reticulum

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The organelle-specific signaling sequences direct proteins synthesized in the cytosol to their final destination like ER, mitochondria, peroxisomes, etc. Some of the proteins directed to ER are then trafficked via vesicles to other organelles within the cell or the extracellular environment through the Golgi complex. For example, the rough ER synthesizes soluble proteins for transportation to the lysosomes or secretion out of the cell. It can also synthesize transmembrane proteins that can...
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Protein and Protein Structure02:15

Protein and Protein Structure

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Proteins are one of the most abundant organic molecules in living systems and have the most diverse range of functions of all macromolecules. Proteins may be structural, regulatory, contractile, or protective. They may serve in transport, storage, or membranes; or they may be toxins or enzymes. Their structures, like their functions, vary greatly. They are all, however, amino acid polymers arranged in a linear sequence.
A protein's shape is critical to its function. For example, an enzyme...
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Updated: Sep 20, 2025

Protein WISDOM: A Workbench for In silico De novo Design of BioMolecules
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Protein WISDOM: A Workbench for In silico De novo Design of BioMolecules

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ダイナミックなタンパク質のディープラーニングによる設計

Amy B Guo1,2, Deniz Akpinaroglu1,2, Christina A Stephens3,4

  • 1The UC Berkeley-UCSF Graduate Program in Bioengineering, University of California, San Francisco, San Francisco, CA, USA.

Science (New York, N.Y.)
|May 22, 2025
PubMed
まとめ

研究者らは ダイナミックなタンパク質構造を設計する ディープラーニングの方法を開発し タンパク質の動きを 初めて正確に制御することができました この突破により 新しい制御可能な タンパク質のシグナル伝達が 可能になりました

さらに関連する動画

Application of I TASSER, trRosetta, UCSF Chimera, HADDOCK server, and HEX loria for De Novo and In Silico Design of Proteins
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Incorporating Target Protein Structure Flexibility and Dynamics in Computational Drug Discovery Using Ensemble-Based Docking Analysis
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Incorporating Target Protein Structure Flexibility and Dynamics in Computational Drug Discovery Using Ensemble-Based Docking Analysis

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Incorporating Target Protein Structure Flexibility and Dynamics in Computational Drug Discovery Using Ensemble-Based Docking Analysis
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科学分野:

  • タンパク質工学
  • コンピュータ生物学
  • バイオ物理学

背景:

  • ディープラーニングにより 静的なタンパク質構造の設計が可能になりました
  • 信号伝達に不可欠なタンパク質の ダイナミックな形状の変化を設計することは依然として大きな課題です

研究 の 目的:

  • ダイナミックなタンパク質の構造変化の de novo 設計のための ディープラーニングによる一般的なアプローチを開発する.
  • タンパク質の動きを 精密な原子レベルで制御し 自然なシグナル伝達メカニズムを模倣します

主な方法:

  • 特定のダイナミックな動きを持つ新しいタンパク質構造を設計するために ディープラーニングのフレームワークを使用しました
  • 構造生物学技術を用いて実験的に検証された設計されたタンパク質構造.
  • リガンドと変異によって設計されたコンフォメーションの風景の調節を調査した.
  • ディープラーニングの予測と実験データを比較するために物理ベースのシミュレーションを使用しました.

主要な成果:

  • 制御された動的変化を示す4つのタンパク質構造を成功裏に設計し,検証した.
  • オーソステリックリガンドとアロステリック変異が設計された形状の景観を調節できることを実証した.
  • 物理に基づくシミュレーションにより ディープラーニングの予測と実験結果が確認されました

結論:

  • 開発されたディープラーニングのアプローチは,新しいタンパク質の動きを de novo 設計することを可能にします.
  • 調節可能で制御可能なシグナリング行動を持つ合成タンパク質を作るための枠組みを提供します.
  • ダイナミックなタンパク質の機能の 設計に新しい道を開きます