工程Saccharomyces boulardii用于增强表面显示能力
Luping Xu1,2, Xingjian Bai3, Deokyeol Jeong1,2
1Department of Food Science, Purdue University, West Lafayette, IN, 47907, USA.
Microbial cell factories
|April 1, 2025
概括
研究人员优化了Saccharomyces boulardii (Sb) 以提高蛋白质显示. 一种新的工程菌株LIP02显著提高了用于治疗应用的表面显示效率和稳定性.
科学领域:
- 微生物学 微生物学
- 生物技术是生物技术.
- 分子生物学分子生物学
背景情况:
- 糖菌 (Saccharomyces boulardii,Sb) 是一种具有治疗潜力的益生菌酵母.
- 当前的应用利用Sb的分泌和显示来提供治疗剂.
- 优化Sb的表面显示效率对于改善治疗效果至关重要.
研究的目的:
- 评估和增强Saccharomyces boulardii中的表面显示系统.
- 为改进蛋白质显示容量和稳定性而改造Sb菌株.
主要方法:
- 在Saccharomyces cerevisiae和Sb.中对基于Aga2和Sed1的显示盒进行系统的修改.
- 通过AGA1过度表达和删除与细胞壁相关的基因,通过新型Sb菌株 (LIP02) 的工程.
- 显示卡塞特在工程菌株中的基因组集成.
主要成果:
- 与野生类型Sb.相比,改造的LIP02菌株显示显著增强的显示能力.
- 基因组集成改善了显示稳定性和表达,而不是基于等离子体的系统.
- 显示的β-葡萄糖酶的功能得到证实,酶活性得到改善.
结论:
- 工程LIP02菌株是Sb.表面显示的优越宿主.
- 这种优化的平台为表达治疗性蛋白质和生物分子提供了更高的稳定性和效率.
相关概念视频
Microbes in Beverage Production
Alcoholic beverages such as wine, beer, and spirits are the products of microbial fermentation processes that transform simple sugars into ethanol and a wide array of complex flavor compounds. These transformations rely on the metabolic activities of specific yeasts and bacteria, which are selected and controlled to yield the desired beverage characteristics.Wine Fermentation and MaturationWine production begins with the crushing of grapes to release juice and pulp, forming a must that is...
Bioreactor Controls-III
Strain improvement is a foundational strategy in industrial microbiology aimed at maximizing microbial productivity, particularly because natural isolates typically yield commercially valuable products in very low concentrations. Although optimizing the culture medium and environmental conditions can improve yields, these adjustments are inherently limited by the organism’s genetic potential. As a result, the focus shifts toward genetic modifications to enhance biosynthetic capacity. The...
Production of Alcohol
Continuous fermentation is a key strategy in industrial ethanol production, particularly when efficiency, scalability, and high yields are essential. This approach allows for uninterrupted operation and optimized resource utilization. The primary feedstock, corn starch, undergoes enzymatic hydrolysis facilitated by α-amylase and glucoamylase. These enzymes break down the starch into fermentable sugars such as glucose, which are readily assimilated by fermentative microorganisms.Fermentation...


