转录组分析揭示了非传统酵母Yarrowia Lipolytica中与红醇相关的转录因子EUF1的多个点
D A Rzechonek1,2, M Szczepańczyk1, I Borodina3
1Laboratory for Biosustainability, Institute of Environmental Biology, Wrocław University of Environmental and Life Sciences, Wrocław, Poland.
Microbial cell factories
|March 13, 2024
概括
转录因子Euf1调节Yarrowia lipolytica中的150多个基因,将红醇代谢与氨基酸降解和甘氨酸酸循环联系起来. 这一发现有助于优化酵母生物技术过程.
科学领域:
- 微生物学 微生物学
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 红醇是一种四碳聚醇,在一些酵母中具有未定义的代谢作用,尽管它与透应激反应有关.
- 它在Yarrowia lipolytica中的同化受转录因子Euf1的调节,但其更广泛的细胞功能尚不清楚.
研究的目的:
- 调查转录因子Euf1在将红醇代谢与Yarrowia lipolytica中的其他细胞过程联系中的作用.
- 了解红醇所赋予的应力保护机制.
主要方法:
- 两种Yarrowia lipolytica菌株 (MK1和K1,有或没有功能Euf1) 在含有红醇和无红醇介质中生长的比较转录组分析.
- 鉴定Euf1调节的基因和分析促进子序列的常见动机.
主要成果:
- Euf1调节了150多个基因,影响了红醇利用途径,潜在的转基因酶异型和多运输体.
- 此外,Euf1还调节了参与分支链氨基酸降解和氧酸循环的基因,这些基因以前与红醇代谢无关.
- 基因转录水平取决于红醇度,上调的基因共享ATGCA促进器动机.
结论:
- 欧1是红醇同化和其他代谢途径之间的关键环节,包括氨基酸代谢和氧酸盐循环.
- 这些发现与优化Yarrowia lipolytica在基因工程和生物技术应用中的相关性有关,特别是在透应激下.
- 了解红醇的代谢影响可以改善过程优化,当它是一个副产品.
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