风险氧化酶催化生物转化在复合的Cupriavidus necator中,由形式氧化为燃料
Marleen Hallamaa1,2, Hannah Pia Franziska Meier1, Matteo Vajente1
1Department of Chemical and Pharmaceutical Biology, Groningen Research Institute of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9713 AV, Groningen, Netherlands.
Chembiochem : a European journal of chemical biology
|October 9, 2025
概括
研究人员使用Cupriavidus necator开发了一种形式驱动的微生物底盘,用于可持续的化学合成. 这个系统有效地将烯酸转化为有价值的产品,推动循环生物经济.
科学领域:
- 生物技术是生物技术.
- 合成生物学 合成生物学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 向循环生物经济的过渡需要可持续的原料,如单个碳 (C1) 分子.
- 甲是一种有吸引力的原料,既可以作为碳和能源来源.
- 库普里亚维杜斯 (Cupriavidus necator) 提供了作为一种微生物底盘的潜力,可以从格式中生产高价值产品.
研究的目的:
- 开发一种以格式驱动的Cupriavidus necator全细胞底盘,用于生物转化.
- 为了使回氧酶的重组产生,特别是风险氧化酶 (ROs),在C. necator.
- 为了研究细胞应激反应在格式变性培养.
主要方法:
- 设计一种C. necator菌株,以利用formate作为唯一的碳和能源来源.
- 在工程 C. necator 底盘内,里斯克氧化酶的重组表达.
- 全细胞生物转化试验使用甲酸盐氧化来燃料酶反应.
主要成果:
- 成功开发了一个以格式驱动的C. necator全细胞底盘.
- 证明了由重组生成的ROS催化的烯酸的高效氧功能化.
- 实现了95%的产量和74%的乙烯二氧化到 (R) -1-乙烯-1,2-二醇.
结论:
- 在C. necator中,形式燃料的全细胞生物转化是合成可行的.
- 工程底盘使得从简单的C1原料中高效地生产奇拉化合物.
- 这项工作支持C.necator在循环生物经济中的可持续化学制造中的使用.
相关概念视频
Carbon-dioxide Fixation
638
Carbon dioxide fixation in prokaryotes enables the assimilation of inorganic carbon into organic molecules, supporting biosynthetic pathways, sustaining ecosystems, and contributing to the global carbon cycle. It also has industrial applications in carbon capture and bioproduct synthesis. Autotrophic organisms rely on this process to utilize CO₂ as a carbon source in diverse environments.The Calvin CycleThe Calvin cycle is the most widespread carbon fixation mechanism, primarily used by...
638
Respiration Pathways
716
Cellular respiration is a fundamental metabolic process that enables organisms to generate energy from organic molecules. One of its central pathways is the tricarboxylic acid (TCA) cycle, also known as the Krebs cycle, which plays a crucial role in energy production and biosynthetic processes.Conversion of Pyruvate to Acetyl-CoAThe pyruvate generated from glycolysis undergoes oxidative decarboxylation by the pyruvate dehydrogenase complex, producing acetyl-CoA, one molecule of NADH, and one...
716
Pyruvate Oxidation
168.3K
After glycolysis, the charged pyruvate molecules enter the mitochondria via active transport and undergo three enzymatic reactions. These reactions ensure that pyruvate can enter the next metabolic pathway so that energy stored in the pyruvate molecules can be harnessed by the cells.
First, the enzyme pyruvate dehydrogenase removes the carboxyl group from pyruvate and releases it as carbon dioxide. The stripped molecule is then oxidized and releases electrons, which are then picked up by NAD+...
First, the enzyme pyruvate dehydrogenase removes the carboxyl group from pyruvate and releases it as carbon dioxide. The stripped molecule is then oxidized and releases electrons, which are then picked up by NAD+...
168.3K
Lipid Catabolism
850
Triglycerides serve as crucial long-term energy storage molecules in microorganisms, providing a dense source of metabolic energy. Their breakdown is mediated by lipases, which hydrolyze triglycerides into glycerol and free fatty acids. Each of these components follows distinct metabolic pathways, ultimately contributing to ATP synthesis and cellular energy homeostasis.Glycerol MetabolismGlycerol, released from triglyceride hydrolysis, is phosphorylated by glycerol kinase to form...
850
The Calvin Benson Cycle
5.8K
Ribulose 1,5- bisphosphate carboxylase/oxygenase (RuBisCo) is a critical enzyme that catalyzes carbon dioxide assimilation during photosynthesis. However, it is an inefficient enzyme, having an extremely slow catalytic rate. A typical enzyme can process about a thousand molecules per second; however, RuBisCo fixes only around three-carbon dioxides per second. Photosynthetic cells compensate for this slow rate by synthesizing very high amounts of RuBisCo, making it the most abundant single...
5.8K
Fates of Pyruvate
10.4K
Pyruvate is the end product of glycolysis, where glucose is oxidized to pyruvate, simultaneously reducing NAD+ to NADH. Two molecules of ATP are also produced by substrate-level phosphorylation.
In aerobic organisms, pyruvate is metabolized via the citric acid cycle to produce reduced coenzymes NADH and FADH2. These coenzymes are then oxidized in the electron transport chain to produce ATP and, in the process, regenerate the NAD+ and FAD. As seen in some cell types and organisms, fermentation...
In aerobic organisms, pyruvate is metabolized via the citric acid cycle to produce reduced coenzymes NADH and FADH2. These coenzymes are then oxidized in the electron transport chain to produce ATP and, in the process, regenerate the NAD+ and FAD. As seen in some cell types and organisms, fermentation...
10.4K


