来自Veronicastrum sibiricum的尼罗利多尔合成酶 (VsNES1) 通过转录组分析进行表征
Zhi-Ying Wang1, Xiang-Xiang Ren2, Yan-Bo Huang2
1School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China.
Plants (Basel, Switzerland)
|December 31, 2025
概括
这项研究在药用植物Veronicastrum sibiricum中发现了新的合成酶基因. 研究人员特征了VsNES1,一种聚烯合成酶,并证明了其对生物技术生产 (E) - 尼罗利多尔的潜力.
科学领域:
- 植物生物化学 植物生物化学
- 分子生物学分子生物学
- 药用植物的研究研究.
背景情况:
- Veronicastrum sibiricum (L.) Pennell,一个植物科的物种,传统上用于各种疾病.
- 这种植物含有多种生物活性化合物,包括药理学上重要的类.
- 类生物合成是由类合成酶 (TPSs) 介导的,这些类合成酶在V. sibiricum中未得到充分研究.
研究的目的:
- 使用转录学学,从V. sibiricum中分离和表征合成酶 (TPS) 基因.
- 为了对特定的TPS酶VSTPS1进行功能分析,以确定其催化活性和基质特异性.
- 探索V. sibiricum中类的异质生成策略.
主要方法:
- 对V. sibiricum进行转录基因分析,以确定可能的TPS基因.
- 基因克隆和功能性特征的VsTPS1在体外和植物 (尼科蒂亚娜本塔米亚纳).
- 分析KEGG通路,以了解类代谢和基因表达.
主要成果:
- 从107929个单基因中确定了12个假定VSTPS基因.
- 克隆和特征VSTPS1,证明其双功能活性,将FPP转化为 (E) - 尼罗利多尔和GPP转化为林纳醇.
- 确认了VsnES1 (以前的VstPS1) 作为一种针对FPP特有的细胞解质六二烯合成酶,产生 (E) - nerolidol.
- 在N. benthamiana中通过VSNES1与HMGR的共同表达增强了 (E) - 涅罗利多尔的产生.
结论:
- 这项研究提供了对V. sibiricum中TPS基因的首次全面分析.
- VsNES1是一种新型的酸合成酶,具有生物技术应用的潜力.
- 异质表达策略可以优化,以在药用植物中高效地产生类.
相关概念视频
Gene Regulation During Sporulation
401
Sporulation is a complex developmental process that allows certain Gram-positive bacteria, such as Bacillus subtilis and Clostridium species, to survive extreme environmental conditions. This process is tightly regulated by a series of signaling cascades and transcriptional controls, ensuring the formation of a highly resistant endospore.Sporulation is triggered by unfavorable conditions, such as nutrient depletion, and is governed by a phosphorelay system. One of the sensor kinases, such as...
401
Master Transcription Regulators
2.7K
2.7K
Master Transcription Regulators
7.6K
Master transcription regulators are regulatory proteins that are predominantly responsible for regulating the expression of multiple genes. Often these genes work in concert to drive a complex process. Activation of a master transcription regulator can lead to a cascade of transcriptional activation necessary for that outcome. These regulators can directly bind to the regulatory sequences of the various genes involved, or they can indirectly regulate transcription by binding to regulatory...
7.6K
Transcription Attenuation in Prokaryotes
18.0K
Transcriptional attenuation occurs when RNA transcription is prematurely terminated due to the formation of a terminator mRNA hairpin structure. Bacteria use these hairpins to regulate the transcription process and control the synthesis of several amino acids including histidine, lysine, threonine, and phenylalanine. Transcription attenuation takes place in the non-coding regions of mRNA.
There are several different mechanisms used to attenuate transcription. In ribosome mediated...
There are several different mechanisms used to attenuate transcription. In ribosome mediated...
18.0K
Biosynthesis in Bacteria
528
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,...
528
Riboswitches
9.5K
Riboswitches are non-coding mRNA domains that regulate the transcription and translation of downstream genes without the help of proteins. Riboswitches bind directly to a metabolite and can form unique stem-loop or hairpin structures in response to the amount of the metabolite present. They have two distinct regions – a metabolite-binding aptamer and an expression platform.
The aptamer has high specificity for a particular metabolite which allows riboswitches to specifically regulate...
The aptamer has high specificity for a particular metabolite which allows riboswitches to specifically regulate...
9.5K


