Related Experiment Video
Updated: Jul 30, 2026
08:54
Efficient Sporulation of Saccharomyces cerevisiae in a 96 Multiwell Format
Published on: September 17, 2016
10.1K
Engineering Saccharomyces boulardii for enhanced surface display capacity.
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
Summary
Researchers optimized Saccharomyces boulardii (Sb) for enhanced protein display. A new engineered strain, LIP02, significantly improves surface display efficiency and stability for therapeutic applications.
Area of Science:
- Microbiology
- Biotechnology
- Molecular Biology
Background:
- Saccharomyces boulardii (Sb) is a probiotic yeast with therapeutic potential.
- Current applications utilize Sb's secretion and display for delivering therapeutic agents.
- Optimizing Sb's surface display efficiency is crucial for enhanced therapeutic delivery.
Purpose of the Study:
- To evaluate and enhance surface display systems in Saccharomyces boulardii.
- To engineer a modified Sb strain for improved protein display capacity and stability.
Main Methods:
- Systematic modification of Aga2- and Sed1-based display cassettes in Saccharomyces cerevisiae and Sb.
- Engineering of a novel Sb strain (LIP02) via AGA1 overexpression and deletion of cell wall-related genes.
- Genome integration of display cassettes in the engineered strain.
Main Results:
- Engineered LIP02 strain showed significantly enhanced display capacity compared to wild-type Sb.
- Genome integration improved display stability and expression over plasmid-based systems.
- Functionality of displayed β-glucosidase was confirmed with improved enzymatic activity.
Conclusions:
- The engineered LIP02 strain is a superior host for surface display in Sb.
- This optimized platform offers enhanced stability and efficiency for expressing therapeutic proteins and biomolecules.
Related Concept Videos
01:25Microbes 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...
01:22Bioreactor 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...
01:27Production 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...