来自Baphicacanthus cusia的shikimate kinase基因的分子克隆和功能特征
Yuxiang Huang1,2,3, Hexin Tan3, Qing Li3
1School of Pharmacy, Quanzhou Medical College, Quanzhou, China.
Frontiers in plant science
|May 12, 2025
概括
这项研究从Baphicacanthus cusia中分离出了新的BCSK基因,揭示了它在醇生物合成中的作用. 在Isatis indigotica中BcSK的过度表达增强了有价值的醇类化合物的产生.
科学领域:
- 植物分子生物学 植物分子生物学
- 生物化学 生化学
- 代谢工程是代谢工程.
背景情况:
- 巴菲卡坎图斯 (Baphicacanthus cusia) 是一种药用植物,对其醇路的基因组数据有限.
- 了解参与二次代谢产生的基因对于代谢工程至关重要.
研究的目的:
- 为了隔离和表征Bphicacanthus cusia的BCSK基因.
- 研究BcSK基因的功能和表达模式.
- 评估BcSK在增强醇类生物合成方面的潜力.
主要方法:
- 基因隔离和克隆从转录组数据.
- 生物信息学和遗传学分析.
- 定量实时PCR (RT-qPCR) 用于表达式分析.
- 亚细胞局部化, prokaryotic 表达和酶活性测试.
- 在Isatis indigotica. 在子宫外过度表达.
主要成果:
- 确定了BCSK的全长cDNA,编码295个氨基酸,具有四个表突,三个内突结构.
- BcSK表达是由非生物应力 (MeJA,ABA,UV) 诱导的,主要在花中发现.
- 亚细胞定位证实了BcSK在质体中的功能,催化石基胺酸转化为石基胺-3-酸盐.
- 在Isatis indigotica中BcSK的过度表达显著增加了印类化物产量.
结论:
- 在Baphicacanthus cusia中发现了新的BCSK基因,并对其功能性进行了描述.
- 在印醇类生物合成的早期阶段,BCSK起着关键作用.
- BcSK具有代谢工程的潜力,以提高有价值化合物的生产.
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