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Catalytically Perfect Enzymes01:07

Catalytically Perfect Enzymes

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The theory of catalytically perfect enzymes was first proposed by W.J. Albery and J. R. Knowles in 1976. These enzymes catalyze biochemical reactions at high-speed. Their catalytic efficiency values range from 108-109 M-1s-1. These enzymes are also called 'diffusion-controlled' as the only rate-limiting step in the catalysis is that of the substrate diffusion into the active site. Examples include triose phosphate isomerase, fumarase, and superoxide dismutase.
 
Most enzymes...
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Enzymes02:34

Enzymes

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Inside living organisms, enzymes act as catalysts for many biochemical reactions involved in cellular metabolism. The role of enzymes is to reduce the activation energies of biochemical reactions by forming complexes with its substrates. The lowering of activation energies favor an increase in the rates of biochemical reactions.
Enzyme deficiencies can often translate into life-threatening diseases. For example, a genetic abnormality resulting in the deficiency of the enzyme G6PD...
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Ribozymes02:47

Ribozymes

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The term ribozyme is used for RNA that can act as an enzyme. Ribozymes are mainly found in selected viruses, bacteria, plant organelles, and lower eukaryotes. Ribozymes were first discovered in 1982 when Tom Cech’s laboratory observed Group I introns acting as enzymes. This was shortly followed by the discovery of another ribozyme, Ribonulcease P, by Sid Altman’s laboratory. Both Cech and Altman received the Nobel Prize in chemistry in 1989 for their work on ribozymes.
Ribozymes can...
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Introduction to Mechanisms of Enzyme Catalysis01:13

Introduction to Mechanisms of Enzyme Catalysis

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For many years, scientists thought that enzyme-substrate binding took place in a simple "lock-and-key" fashion. This model stated that the enzyme and substrate fit together perfectly in one instantaneous step. However, current research supports a more refined view scientists call induced fit. The induced-fit model expands upon the lock-and-key model by describing a more dynamic interaction between enzyme and substrate. As the enzyme and substrate come together, their interaction causes...
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Updated: May 31, 2025

Multi-enzyme Screening Using a High-throughput Genetic Enzyme Screening System
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Multi-enzyme Screening Using a High-throughput Genetic Enzyme Screening System

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iMARSによる合理的なマルチ酵素アーキテクチャ設計

Jiawei Wang1, Xingyu Ouyang2, Shiyu Meng3

  • 1State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China; Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai 200240, China.

Cell
|January 24, 2025
PubMed
まとめ
この要約は機械生成です。

iMARSは 生物触媒を活性化するための 多酵素構造を 設計するためのフレームワークです このアプローチは 価値ある化合物の生産とプラスチック分解を大幅に促進し, より環境にやさしい産業用途への道を切り開きます.

キーワード:
PETの生物分解バイオカタリスバイオマニュファクチャリング融合酵素マルチエンザイム組足場複合体合成生物学

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Fast Enzymatic Processing of Proteins for MS Detection with a Flow-through Microreactor
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Fast Enzymatic Processing of Proteins for MS Detection with a Flow-through Microreactor

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Modeling an Enzyme Active Site using Molecular Visualization Freeware
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関連する実験動画

Last Updated: May 31, 2025

Multi-enzyme Screening Using a High-throughput Genetic Enzyme Screening System
08:10

Multi-enzyme Screening Using a High-throughput Genetic Enzyme Screening System

Published on: August 8, 2016

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Fast Enzymatic Processing of Proteins for MS Detection with a Flow-through Microreactor
09:49

Fast Enzymatic Processing of Proteins for MS Detection with a Flow-through Microreactor

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Modeling an Enzyme Active Site using Molecular Visualization Freeware
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科学分野:

  • 生物触媒と合成生物学
  • メタボリック・エンジニアリング
  • タンパク質工学

背景:

  • 生物触媒カスケードにおける酵素の空間的組織は,効率性には極めて重要であるが,十分に理解されていない.
  • 多酵素構造の予測可能な工学は,合成生物学における重要な課題である.

研究 の 目的:

  • 最適なマルチ酵素アーキテクチャの迅速な設計のための標準化されたフレームワーク iMARSを開発する.
  • in vivoおよびin vitroの生物触媒処理の強化におけるiMARSの有効性を実証する.

主な方法:

  • iMARSの枠組みの中で高通量活動テストと構造分析を統合する.
  • 人工融合酵素とマルチ酵素複合体の設計と工学
  • 小分子合成とポリマー分解を含む様々なバイオ製造プロセスにおけるiMARSの応用.

主要な成果:

  • iMARSは,体内のレスベラトロール (45. 1倍) とラズベリーケトン (11. 3倍) の生成を有意に改善しました.
  • iMARSで設計された酵素を用いたエルゴチオネイン合成の強化
  • PETプラスチックの脱ポリマー化とバニリンのバイオシンセシスの in vitro 触媒効率の向上

結論:

  • iMARSフレームワークは,分子レベルのマルチ酵素アーキテクチャエンジニアリングのための一般化可能で柔軟な戦略を提供します.
  • iMARSは,グリーン化学,合成生物学,バイオマニュファクチャリングの進歩を,最適化された生物触媒効率によって促進します.
  • このアプローチは,複雑な酵素経路の予測可能な性能と産業規模のアプリケーションを可能にします.