瓦斯珀吉拉胺A的生物合成涉及未聚类基因和一个depsi-tetrapeptidediketopiperazine形成NRPS
Xian-Liang Zeng1, Wencong Yang2, Yi-Fan Du1
1State Key Laboratory of Anti-Infective Drug Discovery and Development, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510006, China.
Organic letters
|December 8, 2025
概括
对比基因组学揭示了Aspergillus中负责waspergillamide A生物合成的wpa基因集群. 细胞染色体P450 WpaD充当门卫,影响最终产品的结构.
科学领域:
- 生物化学 生物化学
- 基因组学就是基因组学.
- 菌类学 菌类学是指菌类学.
背景情况:
- 菌的二次代谢产物,如瓦斯珀吉拉胺A,具有复杂的结构.
- 了解这些化合物的生物合成途径对于发现天然产品至关重要.
研究的目的:
- 为了确定在Aspergillus sp.中产生的waspergillamide A的遗传基础. 这是CMB-W031.1.
- 阐明特定酶的作用,如细胞P450 WpaD,在生物合成途径中.
- 为了使结构修订,并确认保存的真菌生物合成途径.
主要方法:
- 比较基因组学以确定非核体合成酶 (NPS) 基因集群 (wpa).
- 在Aspergillus的途径复制实验.
- 生物合成中间体和产品的结构分析和化学表征.
主要成果:
- 鉴定出wpa基因集群是负责珀胺A (1) 生物合成的.
- 细胞染色体P450 WpaD被确定为一个关键的调节酶 (守门员).
- WpaD的存在导致二基托皮佩拉辛2的形成,二基托皮佩拉辛2脱水为1;其缺失产生线性四甲4.
- 实现了对珀胺A (1) 的结构性修改.
- 在真菌中证实了p-nitrobenzoic酸生物合成的保存.
结论:
- wpa基因集群和WpaD酶对于waspergillamide A生物合成和Aspergillus中的结构确定至关重要.
- 的二次代谢物通路可能是复杂的,并由特定的酶调节.
- 这项研究提供了关于真菌天然产品生物合成和演变的见解.
更多相关视频
07:59A Customizable Approach for the Enzymatic Production and Purification of Diterpenoid Natural Products
Published on: October 4, 2019
10.3K
09:27Functional Complementation Analysis FCA: A Laboratory Exercise Designed and Implemented to Supplement the Teaching of Biochemical Pathways
Published on: June 24, 2016
18.1K
相关概念视频
01:28Peptidoglycan Synthesis
1.9K
Structure of PeptidoglycanPeptidoglycan is a vital structural component of the bacterial cell wall, providing mechanical strength and shape to the cell. It consists of repeating units of two sugars—N-acetylglucosamine (NAG) and N-acetylmuramic acid (NAM)—linked by β-1,4 glycosidic bonds. These sugar chains are cross-linked by short peptide chains, forming a mesh-like polymer that surrounds the bacterial plasma membrane.Cytoplasmic Phase – Precursor SynthesisPeptidoglycan...
1.9K
01:24Biosynthesis in Bacteria
536
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,...
536
01:28Biosynthesis of Nucleic Acids
924
Nucleic acid biosynthesis is a fundamental biochemical process that produces the purine and pyrimidine nucleotides essential for DNA and RNA synthesis. This pathway maintains a balanced nucleotide pool, preventing imbalances that could jeopardize genetic integrity and cellular function. Given the crucial role of nucleotides, their synthesis is tightly regulated to ensure proper cellular homeostasis.Purine BiosynthesisThe biosynthesis of purine nucleotides begins with ribose-5-phosphate, a...
924
01:26Biosynthesis of Polysaccharides
526
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...
526
01:29Amino Acid Biosynthetic Pathways
998
Amino acid biosynthesis is essential for cell growth, protein synthesis, and metabolic regulation. Cells generate essential and non-essential amino acids from metabolic intermediates to sustain vital biological functions. These intermediates originate from key metabolic pathways: glycolysis, the tricarboxylic acid (TCA) cycle, and the pentose phosphate pathway. Important precursors include α-ketoglutarate, pyruvate, oxaloacetate, phosphoenolpyruvate, and erythrose-4-phosphate, which...
998
02:57piRNA - Piwi-interacting RNAs
7.5K
PIWI-interacting RNAs, or piRNAs, are the most abundant short non-coding RNAs. More than 20,000 genes have been found in humans that code for piRNAs while only 2000 genes have been found for miRNAs. piRNAs can act at the transcriptional and post-transcriptional levels and have a vital role in silencing transposable elements present in germ cells. They are also involved in epigenetic silencing and activation. Previously, they were thought to function only in germ cells but new evidence suggests...
7.5K