艾尔酵母蛋白动力学在发酵和重复发酵过程中的系统分析
Riddhiman K Garge1,2, Renee C Geck1, Joseph O Armstrong1
1Department of Genome Sciences, University of Washington, Seattle, Washington, USA.
bioRxiv : the preprint server for biology
|October 4, 2023
概括
分析了造酵母 (Saccharomyces cerevisiae) 在发酵过程中的蛋白质变化. 重复的重复导致了与厄戈斯特和异甲基代谢相关的蛋白质的转移.
科学领域:
- 微生物学 微生物学
- 生物化学 生物化学
- 基因组学就是基因组学.
背景情况:
- 了解造酵母 (Saccharomyces cerevisiae) 的遗传学和分子变化是优化酒生产的关键.
- 虽然Saccharomyces cerevisiae被广泛研究,但工业发酵过程中的时间分子转移仍未得到充分研究.
研究的目的:
- 通过多个发酵周期来描述用于Hefeweizen生产的酵母菌株的基因组和蛋白质组变化.
- 为了识别由于连续反而导致造酵母中发生的分子适应.
主要方法:
- 一种特定的Saccharomyces cerevisiae酵母菌株的基因组特征.
- 枪式质谱测量用于量化整个发酵周期的蛋白质丰度变化.
- 在经过14轮连续重定位后,对蛋白质组数据的分析.
主要成果:
- 酵母菌株表现出其类型的典型遗传特征.
- 在发酵过程中观察到渐进的蛋白质转移,在重新制后的早期和后期批次之间存在显著差异.
- 显示丰度变化的关键蛋白质参与了厄戈斯特醇和异甲基的代谢.
结论:
- 连续复制诱导了造酵母中可测量的蛋白质变化,特别是影响了厄戈斯特和异甲基通路.
- 这项研究为了解商业造中的酵母行为提供了宝贵的蛋白质组学资源.
- 这些发现可以指导造行业的发酵协议,菌株管理和工程实践.
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