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関連する概念動画

Net Torque Calculations01:19

Net Torque Calculations

When a mechanic tries to remove a hex nut with a wrench, it is easier if the force is applied at the farthest end of the wrench handle. The lever arm is the distance from the pivot point (the hex nut in this case) to the person’s hand. If this distance is large, the torque is higher. Only the component of the force perpendicular to the lever arm contributes to the torque. Therefore, pushing the wrench perpendicular to the lever arm is more advantageous. If multiple people apply force to rotate...
Design Example: Capacitance Multiplier Circuit01:20

Design Example: Capacitance Multiplier Circuit

In integrated circuit technology, a capacitance multiplier is often utilized to produce a larger capacitance value when a small physical capacitance falls short. This is achieved by a circuit that multiplies capacitance values by a factor of up to 1000, such that a 10-pF capacitor can replicate the performance of a 100-nF capacitor.
The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.
PD Controller: Design01:26

PD Controller: Design

In automotive engineering, car suspension systems often employ Proportional Derivative (PD) controllers to enhance performance. PD controllers are utilized to adjust the damping force in response to road conditions. A controller, acting as an amplifier with a constant gain, demonstrates proportional control, with output directly mirroring input.
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
Dosage Regimen Designs: Nomograms and Tabulations01:23

Dosage Regimen Designs: Nomograms and Tabulations

Nomograms and tabulations are vital tools used by clinicians to design accurate and individualized dosage regimens. These instruments provide a straightforward method for adjusting dosages based on individual patient characteristics, including age, weight, and physiological condition. The foundation of a drug's nomogram is population pharmacokinetic data collected and analyzed using specific models. This data simplifies complex equations, presenting them diagrammatically or tabularly for easy...
Methods of Medium Optimization01:28

Methods of Medium Optimization

Optimizing growth media enhances microbial proliferation and maximizes product yield. Statistical experimental design methodologies provide structured and reproducible approaches, offering progressively higher levels of robustness and efficiency.The One-Factor-at-a-Time (OFAT) MethodThe One-Factor-at-a-Time (OFAT) method involves adjusting a single variable while keeping all others constant. However, it cannot detect interactions between variables, often leading to suboptimal outcomes when...

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Updated: May 11, 2026

Formation of Ordered Biomolecular Structures by the Self-assembly of Short Peptides
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オーダーされたペプチドマクロサイクルの包括的な計算設計

Parisa Hosseinzadeh1, Gaurav Bhardwaj1, Vikram Khipple Mulligan1

  • 1Department of Biochemistry and Institute for Protein Design, University of Washington, Seattle, WA 98195, USA.

Science (New York, N.Y.)
|December 16, 2017
PubMed
まとめ

研究者は新しい混合キラリティペプチドマクロサイクルを設計するための計算方法を開発しました. このアプローチは 薬の発見と治療開発に利用できる 構造的多様性を大きく拡大します

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科学分野:

  • 薬剤化学
  • コンピュータ化学
  • 構造生物学

背景:

  • シクロスポリンのような混合キラリティペプチドマクロサイクルは強力な治療薬である.
  • 既存の方法は,これらの化合物の構造的多様性を調査するための体系的なアプローチを欠いています.
  • 自然なタンパク質は新しいペプチドマクロサイクルを設計するための貧しいテンプレートです.

研究 の 目的:

  • 混合キラリティペプチドマクロサイクルの安定した構造を数え出すための計算戦略を開発する.
  • 新薬開発のためのペプチドマクロサイクルの設計
  • 実験的な構造で計算上の予測を検証する.

主な方法:

  • マクロサイクリックペプチドのほぼ完全な骨格採取.
  • シーケンス設計とエネルギー環境の計算
  • 核磁共振 (NMR) 構造の決定

主要な成果:

  • 単一の安定した構造を採用すると予測された200以上の設計マクロサイクルを特定しました.
  • 設計されたマクロサイクルの実験構造は,計算モデルと密接に一致しました.
  • 利用可能なペプチドマクロサイクル・スキャフォールドの有意な拡張を示した.

結論:

  • 開発された計算方法は,短ペプチドマクロサイクル構造空間を包括的にカバーします.
  • 薬剤の合理的な設計と 図書館の選択のための スタート地点を大きく増やします
  • 新しい治療ペプチドマクロサイクルの体系的な探査と設計を可能にします.