工程异质核心促进器,以优化SES表达系统的Pichia pastoris
Bo Sun1,2, Yu Tan3,4, Nitesh Kumar Mund1,2
1Institute of Bioengineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang, 310027, China.
Synthetic and systems biotechnology
|November 17, 2025
概括
合成生物学增强了微生物的生产使用工程促进器在Pichia pastoris. 优化合成表达系统 (SES) 提高了蛋白质生产的5倍以上,促进了工业应用.
科学领域:
- 合成生物学 合成生物学
- 微生物生物技术 微生物生物技术
- 分子生物学分子生物学
背景情况:
- 皮奇亚牧草对于工业酶和生物制药生产至关重要.
- 在P. pastoris的局限性包括生产能力和转录调节.
- 优化表达系统是克服这些局限性的关键.
研究的目的:
- 通过优化合成表达系统 (SES) 来提高Pichia pastoris的性能.
- 设计来自Trichoderma reesei的异质核心促进剂,以改善P. pastoris的表达.
- 为了提高P. pastoris.中的蛋白质生产效率.
主要方法:
- RNA测序 (RNA-seq) 确定了来自T. reesei. 的高表达促进体.
- 通过使用mCherry 记者基因合成和选了214个候选促销者.
- 克里斯普尔/Cas9促进了多副本的集成,以增强蛋白质表达.
主要成果:
- 54个T. reesei促进剂在P. pastoris中成功发挥作用.
- 与SES-A.相比,41个优化SES系统的mCherry表达增加了5.4倍.
- 在SES-CP32系统有效地表达了蛋白酶K (ProK).
- 一个多副本策略 (3份) 增加了4.6倍的Pro K活动.
结论:
- 工程T. reesei促进剂显著增强了P. pastoris.中的SES.
- 优化的SES-CP32系统为蛋白质生产提供了一个强大的平台.
- 克里斯普尔/Cas9多副本集成进一步提高了表达效率,扩大了SES的实用性.
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