通过GPCR信号级联重塑酵母银河糖规律
1State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Faculty of Medicine and Life Sciences, Xiamen University, Fujian 361102, China.
Cell reports methods
|November 21, 2023
概括
研究人员通过将G蛋白结合受体 (GPCR) 途径与银河糖规则连接来设计酵母代谢控制. 这种合成生物学方法可以对基因表达进行动态控制,以提高菌株的性能.
科学领域:
- 合成生物学 合成生物学
- 代谢工程是代谢工程.
- 系统生物学 系统生物学
背景情况:
- 动态调节的系统提供了对代谢途径的增强控制,以提高菌株性能和生产力.
- 酵母银河糖调节子 (GAL) 是一种特征很好的基因表达控制系统.
研究的目的:
- 使用G蛋白合受体 (GPCR) 信号通路重塑酵母银河糖 regulon.
- 为改善酵母菌株性能,设计对代谢途径的动态控制.
- 通过合成生物学创建用户定义的代谢控制.
主要方法:
- 通过合成转录因子将GAL系统与GPCR信号通路连接起来,用于使用合成转录因子进行交配的费洛蒙.
- 调节GPCR信号级联的关键组件,以重构GAL系统的动态范围,灵敏度和响应时间.
- 构建具有α因子自我分泌的工程酵母,以实现定数感知行为.
- 改造GAL系统的热冲击响应能力.
主要成果:
- 成功将 GAL 系统与 GPCR 信号通路结合起来.
- 重建了GAL系统的动态范围,灵敏度和响应时间.
- 工程酵母菌株通过α因子的自我分泌表现出定数感应行为.
- 通过使其对热冲击有反应,证明了GAL系统的适应性.
结论:
- 合成生物学可以创建用户定义的代谢控制.
- 工程 GAL 系统表现出可塑性,为新型基因表达系统提供了潜力.
- 这项工作突出了GPCR信号传递对动态代谢途径调节的潜力.
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