相关实验视频

Updated: Jan 8, 2026

Monitoring the Reductive and Oxidative Half-Reactions of a Flavin-Dependent Monooxygenase using Stopped-Flow Spectrophotometry

Monitoring the Reductive and Oxidative Half-Reactions of a Flavin-Dependent Monooxygenase using Stopped-Flow Spectrophotometry

Published on: March 18, 2012

两个组件系统中的弗拉还原酶:机械洞察力,结构分类和生物技术进步

Panu Pimviriyakul¹, Piyanuch Anuwan², Pimchai Chaiyen²

¹Department of Biochemistry, Faculty of Science, Kasetsart University, Chatuchak, Bangkok 10900, Thailand.

Biotechnology advances

|December 18, 2025

概括

黄减少酶 (FRs) 是生物催化中的关键酶,提供必要的减少黄辅因子. 本次审查提出了基于序列和结构的FR的新分类系统,以改善其工业应用.

科学领域:

生物化学和酶学生物化学和酶学
蛋白质工程是一种蛋白质工程.
工业生物技术工业生物技术

背景情况:

黄减少酶 (FRs) 是重要的氧化还原酶,为两组合黄依赖单氧化酶 (TC-FDMO) 系统提供减少的黄辅因子 (FMNH-FADH).
这些酶对于生物过程和工业生物催化剂,包括化,化和环氧化反应至关重要.

研究的目的:

为弗拉减少酶 (FRs) 提供全面的综述,涵盖其结构,机制和分类方面.
提出基于氨基酸序列和域架构的FRs新型分类框架,克服现有功能分类的局限性.
评估蛋白质工程和替代辅助因子再生策略的进展,以提高FR的工业适用性.

主要方法:

综合文献审查和分析FRs的结构特征,寡合体状态和运动机制.
对现有和拟议的FR分类系统进行比较分析.
评估蛋白质工程技术,融合蛋白质设计和非酶性再生方法.

主要成果:

现有的仅基于功能的FR分类系统存在局限性.
基于序列和域架构的FR的新分类框架被提议用于提高信息性.
讨论了详细的机制性见解,包括半站反应性和基质增强催化.
对蛋白质工程和辅因子再生策略的进展进行了批判性评估.

结论:

拟议的分类系统为了解和设计FR提供了一个更强大的框架.
通过蛋白质工程和优化系统设计,可以提高FR稳定性,催化性能和辅助因子再生.
进一步开发FR对于使用TC-FDMO系统推进可扩展,可持续和工业相关的生物催化剂至关重要.

关键词:

黄素还原酶 (FRs) 是一种工业生物催化剂的工业生物催化剂蛋白质工程是一种蛋白质工程.减少了flavin辅因子的作用.两个组成部分的黄素依赖单氧基酶 (TC-FDMO)

更多相关视频

FLIM-FRET Measurements of Protein-Protein Interactions in Live Bacteria.

FLIM-FRET Measurements of Protein-Protein Interactions in Live Bacteria.

Published on: August 25, 2020

Biosynthesis of a Flavonol from a Flavanone by Establishing a One-pot Bienzymatic Cascade

Biosynthesis of a Flavonol from a Flavanone by Establishing a One-pot Bienzymatic Cascade

Published on: August 14, 2019

相关概念视频

Electron Transport Chain: Complex I and II

Electron Transport Chain: Complex I and II

The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
ROS generation is regulated and maintained at moderate levels necessary...

Transcriptional Regulation: Riboswitches

Transcriptional Regulation: Riboswitches

Riboswitches are RNA elements that regulate gene expression by altering their secondary structures in response to specific effector molecules. These elements, located in the leader regions of certain mRNAs, act as transcriptional regulators by toggling between alternative conformations to control downstream gene expression. Riboswitch-mediated regulation is a precise mechanism for modulating biosynthetic pathways, as exemplified by the riboflavin biosynthesis pathway in Bacillus...

Role of Reduced Coenzymes NADH and FADH₂

Role of Reduced Coenzymes NADH and FADH₂

The energy released from the breakdown of the chemical bonds within nutrients can be stored either through the reduction of electron carriers or in the bonds of adenosine triphosphate (ATP). In living systems, a small class of compounds functions as mobile electron carriers, molecules that bind to and shuttle high-energy electrons between compounds in pathways. The principal electron carriers that will be considered originate from the B vitamin group and are derivatives of nucleotides; they are...

Redox Reactions

Redox Reactions

Redox reactions are vital biochemical processes that underpin energy metabolism in cells. These reactions involve the transfer of electrons between molecules, occurring in tandem as oxidation and reduction. Oxidation refers to the loss of electrons, while reduction denotes their gain. This coupling ensures the seamless flow of electrons through metabolic pathways. For example, in bacterial metabolism, glucose undergoes oxidation to carbon dioxide, while oxygen is simultaneously reduced to...

Electron Transport Chain Components

Electron Transport Chain Components

The electron transport chain (ETC) is a crucial metabolic pathway that facilitates energy conversion in prokaryotic and eukaryotic cells. In eukaryotes, the ETC comprises four membrane-associated protein complexes in the inner mitochondrial membrane. In prokaryotes, the ETC in the plasma membrane can vary in composition, with fewer or different complexes depending on the organism and environmental conditions. These complexes transfer electrons from electron donors, such as NADH and FADH2, to...

Electron Transport Chain: Complex III and IV

Electron Transport Chain: Complex III and IV

During the electron transport chain, electrons from NADH and FADH2 are first transferred to complexes I and II, respectively. These two complexes then transfer the electrons to ubiquinol, which carries them further to complex III. Complex III passes the electrons across the intermembrane space to Cyt c, which carries them further to complex IV. Complex IV donates electrons to oxygen and reduces it to water. As electrons pass through complexes I, III, and IV, the energy released aids the pumping...