微生物工程用于天然和非天然的糖氨基氨基酸糖的生物合成
Chunlei Zhao1, Jinyi Qian1, Xiulai Chen1
1School of Biotechnology and Key Laboratory of Industrial Biotechnology of Ministry of Education, Jiangnan University, Wuxi 214122, China. xlchen@jiangnan.edu.cn.
Natural product reports
|August 5, 2025
概括
微生物合成的糖氨基 (GAGs) 提供可持续的生物制造. 在GAG生物合成,硫化和模拟生成方面的创新正在为工业规模生产铺平道路.
科学领域:
- 生物技术和合成生物学
- 生物化学工程 生物化学工程
- 微生物工程 微生物工程
背景情况:
- 微生物合成糖氨基 (GAG) 是一种可持续的生物制造方法,使用具有成本效益的碳来源.
- 目前的进展包括*de novo*GAG生物合成,硫化工程,以及创建新的GAG类似物.
- 在实现工业规模的效率方面仍然存在重大挑战,包括代谢流量优化,增强的硫化环境和与非自然类型的宿主兼容性.
研究的目的:
- 系统地审查微生物宿主,生物合成途径和GAG生产的工程策略.
- 分析微生物细胞工厂 (MCF) 对于GAG生物合成的发展,从途径移植到*de novo*代谢系统建设.
- 探索GAG硫化工程的框架和GAG类似物的微生物合成.
主要方法:
- 对主体优化和途径操纵进行分析,以实现高效的GAG生物合成.
- 审查MCF开发策略,包括途径移植和系统性*de novo*代谢系统建设.
- 对GAG硫化和GAG类似物微生物合成的三方工程框架的检查.
主要成果:
- 战略性宿主优化和途径操纵可以增强微生物GAG生物合成.
- 从简单的途径移植到复杂的*de novo*代谢系统,可以开发出MCF,超过自然生物合成的极限.
- 一个三方工程框架可以对GAG硫化进行可编程控制,并且可以对非天然GAG类似物进行微生物合成.
结论:
- 微生物工程策略对于推动GAG生物制造至关重要.
- 可编程的MCF可以克服自然生物合成的局限性,并使设计型甘油聚合物的生产成为可能.
- 预计多功能定制MCF的进一步开发将推动工业规模GAG生产的突破.
相关概念视频
01:23Glycosaminoglycans
5.1K
Glycosaminoglycans (GAGs), also known as mucopolysaccharides, are long and linear polymers comprising of specific repeating disaccharides - the amino sugar that can be N-acetylglucosamine or N-acetylgalactosamine, and a uronic acid that is usually glucuronic acid or iduronic acid.
GAGS are found in the extracellular matrix of vertebrates, invertebrates, and bacteria. Due to their polar nature they attract water, and serve as excellent lubricants or shock absorbers in an animal body.
Hyaluronic...
GAGS are found in the extracellular matrix of vertebrates, invertebrates, and bacteria. Due to their polar nature they attract water, and serve as excellent lubricants or shock absorbers in an animal body.
Hyaluronic...
5.1K
01:24Biosynthesis in Bacteria
106
Biosynthesis in bacteria is a fundamental anabolic process that generates essential macromolecules, including proteins, nucleic acids, lipids, and polysaccharides. These macromolecules are critical for cellular growth, replication, and function. The process is tightly regulated and energetically linked to catabolic pathways to ensure optimal resource utilization.Biosynthetic pathways begin with precursor metabolites such as pyruvate, acetyl-CoA, and glucose-6-phosphate derived from glycolysis,...
106
01:05Proteoglycans
4.0K
Glycans, a class of complex heterogeneous molecules, can be covalently attached to proteins to form glycosylated proteins that regulate various physiological and pathological processes. Glycosylated proteins or glycoproteins comprise N-linked and O-linked oligosaccharides. O-glycosylation is the most common type of protein glycosylation. Here, glycans attach to the oxygen atom of the hydroxyl groups of Serine or Threonine residues. O-linked glycosylation occurs later in protein processing,...
4.0K
01:24Oligosaccharide Assembly
3.0K
Protein glycosylation starts in the ER lumen and continues in the Golgi apparatus. Glycosyltransferases catalyze the addition of sugar molecules or glycosylation of proteins. Usually, these enzymes add sugars to the hydroxyl groups of selected serine or threonine residues to form O-linked glycans or the amino groups of asparagine residues to form N-linked glycans. Different positions on the same polypeptide chain can contain differently linked glycans.
Multiple sugar molecules that may or may...
Multiple sugar molecules that may or may...
3.0K
02:55Synthetic Biology
5.0K
Synthetic biology is an interdisciplinary science that involves using principles from disciplines such as engineering, molecular biology, cell biology, and systems biology. It involves remodeling existing organisms from nature or constructing completely new synthetic organisms for applications such as protein or enzyme production, bioremediation, value-added macromolecule production, and the addition of desirable traits to crops, to name a few.
Golden rice
Golden rice is a genetically modified...
Golden rice
Golden rice is a genetically modified...
5.0K
01:26Biosynthesis of Polysaccharides
90
Polysaccharides such as glycogen and starch are synthesized from nucleoside diphosphate sugars, primarily uridine diphosphate glucose (UDPG) and adenosine diphosphate glucose (ADPG). These activated glucose donors act as key intermediates in carbohydrate metabolism and biosynthesis. UDPG primarily involves glycogen synthesis in animals and many bacteria, while ADPG plays a fundamental role in starch synthesis in plants and certain bacteria.UDPG is formed when glucose-1-phosphate reacts with...
90