通过两种不同的托芬载体的组合过度表达,以托芬为基础的生物的过度生产
Hyun Jin Kim1, Sion Ham1, Nara Shin1
1Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Republic of Korea.
Journal of microbiology and biotechnology
|January 12, 2024
概括
研究人员通过优化托转运体来增强工程化大肠杆菌中的生物印花产量,达到2.3g/l的产量. 这种可持续的方法为天然蓝色染料生产提供了更绿色的替代方案.
科学领域:
- 生物技术是生物技术.
- 合成生物学 合成生物学
- 代谢工程是代谢工程.
背景情况:
- 蓝是一种天然的蓝色染料,历史上来源于植物或化学合成.
- 印度的可持续和环保的生产方法有需求.
- 基因工程微生物为生物印第哥生产提供了一个有前途的途径.
研究的目的:
- 在大肠杆菌全细胞系统中增强生物的产量.
- 通过运输蛋白来改善英多尔和二的运输.
- 优化培养条件以最大限度地提高生物印第戈的生产.
主要方法:
- 工程化大肠杆菌表达型酶 (TnaA) 和含有黄素的单氧基酶 (FMO).
- 对提升芳香化合物运输的托芬运输体 (Mtr,AroP,TnaB) 的评估.
- 优化发酵参数,包括介质组成,温度,诱导剂度,速度和pH值.
主要成果:
- 运输器AroP显著提高了印花的生产.
- 一种AroP和TnaB载体的组合产生了最高的生物印地产量.
- 优化条件和传送器组合导致66小时后的8.77mM (2.3g/l) 生物印地产量.
- 回收的生物印花表现出作为水彩染料的良好表现.
结论:
- 携带AroP和TnaB载体的联合表达是一种有效的策略,可以提高大肠杆菌中生物原菌的产量.
- 优化的发酵条件进一步提高了生产效率.
- 这项研究提出了一种可行,可持续的生物生产和应用方法.
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